Radiography Physics 131
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Minimum response time of the automatic exposure control is : 1)time required to energize, 2)Shortest possible exposure time, 3)function to prevent over exposure, 4)protect from excessive heat. | show 🗑
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| What devices converts mechanical energy into electrical energy: | show 🗑
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| Which galvanometer must be connected in parallel circuit? Filament ammeter, milliampmeter, voltmeter, rectifier | show 🗑
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| show | Electromagnet
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| show | Solenoid
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| What is the purpose of an electric motor | show 🗑
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| show | To convert mechanical energy into electricity
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| show | A charge particle
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| An electric current is induced in a circuit if some part of that circuit is in what type of magnetic field | show 🗑
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| What are the four factors of Faraday's law | show 🗑
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| What are the SI units of magnetic field strength | show 🗑
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| Only what shell x-rays of tungsten are useful for imaging | show 🗑
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| show | A positively charged particle located inside the nucleus of an atom. It also defines the atomic number of an element.
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| Neutron | show 🗑
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| Electron | show 🗑
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| Atomic Number | show 🗑
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| Ionization | show 🗑
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| show | The transfer of energy by the ionization of atoms
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| Photon | show 🗑
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| Properties of a photon | show 🗑
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| show | The source of most occupational radiation exposure. An outer shell electron is struck and ejected (compton electron). The x-ray continues in a different direction with less energy, and it produces fog.
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| Insulator | show 🗑
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| show | A material that under some conditions behaves as an insulator, and in other conditions, behaves as a conductor
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| Conductor | show 🗑
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| Resistance | show 🗑
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| Formula to find the number of electrons in a shell | show 🗑
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| What is the smallest particle that has all the properties of an element | show 🗑
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| What are the fundamental building blocks of matter | show 🗑
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| What are the seven types of energy | show 🗑
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| What is the smallest particle that has all the properties of a compound | show 🗑
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| show | 3.0 x 10^8
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| What two natures does electromagnetic energy behave in | show 🗑
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| show | Inversely proportional
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| show | Electron
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| If two negatively charged objects are brought near to each other will they be attracted or repelled | show 🗑
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| show | Negatively
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| show | No
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| show | Induction, Friction and Contact
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| What are the 3 main factors that characterize a simple circuit and their unit of measurement | show 🗑
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| show | Parallel
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| show | Series
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| What type of circuit does voltage remain constant | show 🗑
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| show | Cross sectional Area, Material Type, length and temperature
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| show | Branch of physics dealing with stationary or resting electric charges.
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| show | Insufficient or over abundance in the amount of electrons.
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| show | Excessive amount of electrons.( negative charge)
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| show | Wire Going straight into the earth to help dissipate electrical charges
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| show | It detects the presence and sign of an electric charge.
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| show | When an uncharged metallic object experiences a shift of electrons when brought into the electric field of a charged object.
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| show | Like charges repel; unlike charges attract.
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| What is the second law of electrostatics? | show 🗑
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| What is the third law of electrostatics? | show 🗑
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| show | The concentration of charges on a curved surface of a conductor is greatest where curvature is greatest.
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| What is the fifth law of electrostatics? | show 🗑
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| What is another name for static electricity? | show 🗑
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| What particle moves when electrification occurs? | show 🗑
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| What is the movement of electrons in insulators? | show 🗑
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| A charged body brought near an uncharged body is an example of what type of electrification? | show 🗑
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| show | The science of electric charges in motion.
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| Under what conditions does an electric current consists of a flow of charged particles | show 🗑
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| What are the two sources of electric current | show 🗑
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| show | Difference in electrical potential energy between 2 points in an electric circuit.
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| What is the UNIT of potential difference | show 🗑
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| Define volt. | show 🗑
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| Define electromotive force. | show 🗑
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| show | Amount of electric charge flowing per second.
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| show | Ampere
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| What is an ampere | show 🗑
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| show | Property of circuit opposing or hindering flow of electric current.
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| show | OHM
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| show | The resistance of a standard volume of mercury under standard conditions.
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| On what factors does the resistance of a conductor depend | show 🗑
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| Define dry cell. | show 🗑
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| show | Consists of hard rubber or plastic case containing sulfuric acid with immersed electrodes.
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| How does temperature affect metal conductors | show 🗑
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| show | The value of the current in a metallic circuit equals the potential difference divided by the resistance. (I*R=V)
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| Define ammeter. | show 🗑
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| show | Meter that measures, in volts, the potential difference between any two points in a circuit. (in parallel)
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| What is the unit of power | show 🗑
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| show | P = I^2*R watts
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| show | P = I^2*R
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| A gasoline engine will convert chemical energy to what type of energy | show 🗑
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| What type of charge moves in a conductor | show 🗑
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| show | Decreases resistance
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| show | Increases resistance
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| What is measured by a meter wired in series with a resistance | show 🗑
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| show | Electric charge
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| show | Electric Circuit
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| show | Resistance
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| show | Ampere
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| Device that measures current | show 🗑
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| Devices designed to have specific resistance | show 🗑
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| Device that measures potential difference | show 🗑
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| show | Volt
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| show | photoelectric
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| Atoms that have the same number of protons but a different number of neutrons are called ____________. | show 🗑
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| show | ionic bond
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| What is the chemical union, between atoms, that is formed by sharing one or more pairs of electrons? | show 🗑
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| show | compound
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| Atoms of various elements may combine to form what kind of structures? | show 🗑
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| show | isotopes
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| In the neutral atom, the number of electrons is equal to the number of protons. What is the number of protons called? | show 🗑
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| show | atomic mass number, symbolized by "A", never a whole number
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| show | the outward push or flying out from the center force so electrons maintain their distance from the nucleus while traveling in a circular or elliptical path
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| What is used to convert mechanical energy into electric energy? | show 🗑
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| show | a motor by passing a coil or loop of wire through a magnetic field
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| show | work that can be done when an electron moves through an electric potential difference (voltage)
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| What is electricity? | show 🗑
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| How do two atoms that are attracted to each other result in an ionic bond? | show 🗑
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| show | K-shell
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| show | more tightly it is bound
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| show | electron binding energy
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| What is the force that keeps an electron in orbit? | show 🗑
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| show | the valence of an atom
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| What is the number of electrons in the outermost shell of an atom(valence) equal to on the ptable? | show 🗑
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| What is the most electrons contained in the outer most shell of a stable atom | show 🗑
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| show | two
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| show | seven
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| show | K
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| What is the last shell referred to as | show 🗑
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| What determines the chemical element | show 🗑
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| show | nucleons
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| What are the two types of nucleons contained in the nucleus | show 🗑
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| show | how it reacts chemically; how it combines with other atoms to form molecules
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| What do the shells represent | show 🗑
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| show | the greater its binding energy
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| What is the normal state of an atom | show 🗑
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| show | the removal or addition of an orbital electron in an atom
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| show | ionized
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| show | the distance of the shell from the nucleus
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| show | electron, proton, neutron
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| show | empty space
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| show | the smallest particle of matter that has all the properties of an element
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| show | the atomic number of the target
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| 8 Forms of Energy are | show 🗑
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| What is work | show 🗑
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| Who came up with the solar system theory of an atom | show 🗑
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| show | definite combination
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| a neutral atom has what charge | show 🗑
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| show | +1, +2
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| A semiconductor | show 🗑
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| Insulator | show 🗑
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| A stable octet has what valence | show 🗑
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| show | Sharing of Orbital electron
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| Ionic bonding is | show 🗑
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| The Horizontal rows of the P.table represent what | show 🗑
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| show | A body at rest to stay at rest and a body in motion to stay in motion
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| show | energy
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| show | actual or potential ability to do work
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| show | Kinetic and potential
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| show | energy in motion
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| show | energy at rest
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| Kinetic and potential energy are ____ related | show 🗑
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| E=MC^2 means what | show 🗑
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| Power formula | show 🗑
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| show | an impure form of matter
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| show | definite compositions or pure forms of matter
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| show | simple substances, when melted they do not change
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| show | elements that have combined together example. H2O
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| show | smallest particle having all the properties of the compound *1 molecule of H2O*
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| Atoms are what | show 🗑
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| show | Electrons Spin on an axis and orbit a nucleus
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| 1/12th of the mass of a carbon 12 nucleus is what | show 🗑
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| show | Valence
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| show | 1.Exposure to Xrays or Gamma Rays
2.Exposure to a stream of electrons
3.Radionuclides decay
4.Exposure to light
5.Exposure to chemicals
6.Exposure to Thermionic emission
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| what is electrolysis | show 🗑
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| What is the charge of a Cation | show 🗑
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| show | Negative
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| Electrons move from _____ to _____ in the tube | show 🗑
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| A branch of physics that deals with stationary or resting electric charges | show 🗑
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| show | positive
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| What is the name of the zone that surrounds ever charged body. | show 🗑
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| When using electrification by induction when bringing a negatively charged object near an uncharged object what charge will the uncharged object take on at the end closest to the charged object | show 🗑
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| The earth is an infinite reservoir for what | show 🗑
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| Ground potential equals ____ | show 🗑
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| show | 1.Likes repel, opposites attract
2.Force b/t 2 charges is Directly proportional to the product of their quantities and inversely proportional to the square of the distance b/t them
3.Electric charges reside only on the external surface
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| Laws of electrostatics 4-5 | show 🗑
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| Static discharge in a large scale is called what | show 🗑
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| show | electrodynamics or current electricity
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| show | conduction
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| show | electric circuit
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| show | switch
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| Factors in a simple steady direct current | show 🗑
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| the difference in electrical potential energy b/t 2 points on an electric circuit | show 🗑
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| The potential difference b/t 2 points represents the amount of ____ expended in moving a unit charge from one point to the other | show 🗑
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| The maximum difference of potential between the terminals of a battery or generator | show 🗑
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| show | Volt
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| show | current
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| show | Ampere
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| show | Resistance
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| show | Ohm's
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| show | conductance
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| show | insulators or dielectrics
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| show | Ohm's Law
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| What are the 2 types of batteries | show 🗑
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| show | One direction
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| what are the 3 essential parts of a circuit | show 🗑
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| The current in a circuit supplied by a battery has a definite direction or ______ | show 🗑
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| show | devices used to measure potential difference (Volts) and/or Current (Amperage)
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| show | Series
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| A circuit where the component parts are connected as branches of the main circuit so the current is divided among them | show 🗑
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| show | Add up
Stays the same
Adds up
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| In a Parallel circuit the Volts _____, the Amerage _____, and the Resistance _______ | show 🗑
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| show | Overload
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| show | 1.Fuse
2.Breaker
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| A device that stores electrical energy. | show 🗑
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| show | True
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| show | False, Capacitors can only hold as much as it is design allows it to.
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| To find the power of a current you must use what equation | show 🗑
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| What is the unit for "Power" | show 🗑
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| show | I*I*R=Power Loss in Heat/sec
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| show | Proportional
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| show | Magnetism
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| show | magnet
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| 3 types of magnets | show 🗑
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| show | 1.Every magnet has 2 poles
2.Like poles repel, opposites attract
3.force is proportional to the product of the pole strength divided by the square of the distance b/t them
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| Natures of Magnetism | show 🗑
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| When dipoles all line up in the same direction it creates a what | show 🗑
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| Non magnetized materials have their dipoles in what type of direction | show 🗑
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| show | A non magnetic element
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| the summation of the fields of all the domains is what | show 🗑
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| show | Magnetic Flux
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| the less closely spaced the magnetic flux lines are the stronger the field will be. True or False | show 🗑
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| show | lines
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| Magnetic lines are directed from south pole to north pole of a magnet as curved lines in the surrounding space. True or False | show 🗑
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| show | True. Likes repel and opposites attract
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| show | True. Diamagnetic materials are repelled by magnetic fields however, they do not influence them.
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| When a ferromagnetic material is brought near the north pole of a magnet the end farthest from the magnet will be what type of pole | show 🗑
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| show | magnetic permeability
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| show | Magnetic retentivity
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| Permeability and retentivity have a ______ relationship | show 🗑
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| If a material has High permeability it has what retentivity | show 🗑
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| show | 1.Ferromagnetic
2.Paramagnetic
3.Nonmagnetic
4.Diamagnetic
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| A _____ can detect magnetic lines of flux | show 🗑
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| The earths North pole is actually the South pole and the South pole is actually a North Pole, True or False | show 🗑
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| The Tesla is the SI unit for what | show 🗑
|
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| show | Electromagnetism
🗑
|
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| Who discovered that a magnetic compass needle turns when placed near copper wire carrying a direct current | show 🗑
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| a ____ _____ always surrounds a conductor in which an electric current is flowing | show 🗑
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| show | when the wire is grasped in the left hand with the thumb pointing in the direction of the electron current, then the fingers encircling the wire will indicate the direction of the magnetic lines around the current
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| A magnetic field exits around a wire only while a ______ _____ is flowing | show 🗑
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| show | A coil of wire conductor
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| show | True
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| A Solenoid is a ... | show 🗑
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| show | Put an iron core in a solenoid
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| show | increases
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| show | that moving the magnetic fields can induce electron flow in a conductor
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|
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| show | electromagnetic induction
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| show | Flux Linkage
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|
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| 4 Factors that determine the size or magnitude of an induced EMF | show 🗑
|
||||
| If a stationary wire was surrounded by a magnetic field of varying strength would an EMF be produced. | show 🗑
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| An EMF is induced in a conductor moving relative to a magnetic field even if the circuit is open because EMF represents the potential difference b/t the ends of the conductor. True or False | show 🗑
|
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| 3 ways to induce EMF | show 🗑
|
||||
| the magnitude of the induced EMF is directly proportional to the number of lines per second crossing the conductor, True or False | show 🗑
|
||||
| To determine the relationships between the motion of the conductor, and the magnetic field and the direction of the current you need to use what | show 🗑
|
||||
| show | right
🗑
|
||||
| when a secondary opposite flowing current occurs in a newly closed circuit because of the lines of flux are cutting across the coil. this is called what | show 🗑
|
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| Self-Induction EMF _____ the applied EMF | show 🗑
|
||||
| show | falls
🗑
|
||||
| In Alternating current the "rise" to the peak of the wave is where the self-induction takes place. True or False | show 🗑
|
||||
| Mutual Induction is what | show 🗑
|
||||
| a device that converts mechanical energy to electrical energy by electromagnetic induction is called a what | show 🗑
|
||||
| show | armature
🗑
|
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| 2 things needed to create a generator | show 🗑
|
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| show | they are used to transfer the current from the armature to the wire conductor
🗑
|
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| Do slip rings move in a generator? | show 🗑
|
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| What material are the "brushes" made up of in a generator. | show 🗑
|
||||
| a current which periodically reverses its direction is called a what | show 🗑
|
||||
| The S shaped wave form of moving AC current is called what | show 🗑
|
||||
| show | the distance between 2 corresponding points on the curve, that represents a full rotation
🗑
|
||||
| # of Cycles per second is | show 🗑
|
||||
| # of Alternations per second | show 🗑
|
||||
| show | Root Mean Square
🗑
|
||||
| show | Total V * .707 = Effective Voltage
🗑
|
||||
| By what formula would find the MAXIMUM Voltage on an AC circuit | show 🗑
|
||||
| show | True
🗑
|
||||
| AC causes a fluctuation in the strength and direction of the magnetic field set up around a coil. True or False | show 🗑
|
||||
| show | Opposite the applied EMF, This is caused by the back bias of the sine wave
🗑
|
||||
| show | the bucking effect of the back emf associated with the rapid self-induction that occurs during the entire time that an AC circuit is on
🗑
|
||||
| All resistive factors in a circuit is what | show 🗑
|
||||
| small capacitors that hinder the flow of current in AC | show 🗑
|
||||
| show | Inductance, can be used interchangeably with Self Induction
🗑
|
||||
| In a DC circuit this device allows current to flow only until it has reached a full charge and then stops flowing. | show 🗑
|
||||
| Ohm's Law for AC is what formula | show 🗑
|
||||
| The ring used in DC generators is called what | show 🗑
|
||||
| the split ring allows the AC current created by the Armature to only pass through as DC current. True or False | show 🗑
|
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| Commutator rings are attached directly onto the armature ends. True or False | show 🗑
|
||||
| A X YY chart with consecutive arches all above the X axis is called what | show 🗑
|
||||
| 2 Advantages of AC | show 🗑
|
||||
| show | False, Power loss is proportional to the square of the amperage. P=I*I*R
🗑
|
||||
| Power loss is measured in what | show 🗑
|
||||
| a device that converts electrical energy to mechanical energy is called | show 🗑
|
||||
| show | True
🗑
|
||||
| show | 1. conductor must carry a current
2. must be located in a magnetic field
🗑
|
||||
| show | True
🗑
|
||||
| show | False, The force is INCREASED
🗑
|
||||
| show | Thumb represents direction that the conductor will move, Index finger direction of the magnetic field and the middle finger represents direction of the electrons
🗑
|
||||
| AC motors have ______ Rings and DC motors have _____ rings | show 🗑
|
||||
| show | The back emf that is created in the motor acts as a generator sending current back to the main lines.
🗑
|
||||
| show | 1. Direct current motor
2. Alternating Current motor
🗑
|
||||
| show | 1.Synchronous
2.Induction
🗑
|
||||
| Synchronous motors create Alternating current however it is built like a single phase ____ generator | show 🗑
|
||||
| Synchronous motors must rotate at 1/2 the speed of its generator supplying the current. True or False | show 🗑
|
||||
| A disadvantage of synchronous motor lies in the limited speed in which it operates. True or False | show 🗑
|
||||
| Induction motors use a _____ | show 🗑
|
||||
| show | stator
🗑
|
||||
| show | multiphase
🗑
|
||||
| a device used to measure AC that will not freeze due to the rapid alternations in the current is called what | show 🗑
|
||||
| show | Voltage or Current
🗑
|
||||
| An electromagnetic device which changes an AC current from low voltage to high voltage or from High to low, with out loss of appreciable amount of energy. | show 🗑
|
||||
| Acceptable amount of energy loss in a transformer is less then ____ percent | show 🗑
|
||||
| show | True, it is done by elecromagnetic mutual induction
🗑
|
||||
| show | 1.Air Core
2.Open Core
3.Closed Core
4.Shell-type
🗑
|
||||
| show | source
🗑
|
||||
| The secondary coils receive energy from the primary coils though induced EMF. True or False | show 🗑
|
||||
| show | input
🗑
|
||||
| show | output
🗑
|
||||
| An important principle of electromagnetic induction is the EMF induced in any coil is directly proportional to the number of turns in the coil that cuts, is cut by, or links with, a given magnetic flux. True or False | show 🗑
|
||||
| show | step up
🗑
|
||||
| the EMF induced in the secondary coil is to the emf in the primary coil, as the number of turns in the secondary coil is to the number of turns in the primary coil represents what | show 🗑
|
||||
| show | Vs Ns
-- = --
Vp Np
Vs=Voltage Secondary coil
Vp=Voltage Primary Coil
Ns=# of Turns Secondary Coil
Np=# of Turns Primary Coil
🗑
|
||||
| Step up transformers increase or decrease the output voltage | show 🗑
|
||||
| show | False a step down transformer has fewer loops on the secondary side then primary
🗑
|
||||
| When measuring the current in a transformer what formula must be used | show 🗑
|
||||
| show | inversely
🗑
|
||||
| show | voltage, amperage
🗑
|
||||
| power output of an xray transformer is rated in ____ | show 🗑
|
||||
| to find the KVA of a xray generator you need to use what formula | show 🗑
|
||||
| show | Air Core Transformer
🗑
|
||||
| A transformer that consists of 2 insulated coils with iron cores lying side by side is called | show 🗑
|
||||
| Air core transformers still have alot of power loss due to loss of magnetic flux at the ends of the cores this is called what | show 🗑
|
||||
| show | Closed Core Transformer
🗑
|
||||
| show | True
🗑
|
||||
| Windings are also known as | show 🗑
|
||||
| The oil in a closed core transformer has ____ ____ created because of the magnetic flux | show 🗑
|
||||
| The oil is used as a _____ for the coils, reducing the amount of heat loss | show 🗑
|
||||
| Laminated core, consisting of a pile of sheets of silicon steel each having 2 rectangular holes with the primary and the secondary coils both wound around the central section of the core is called what | show 🗑
|
||||
| show | oil
🗑
|
||||
| A common type of lamination used on transformer cores is what | show 🗑
|
||||
| A galvanometer with low resistance in a parallel is capable of measuring current when connected in series in a DC circuit. This device is a Ammeter True or False | show 🗑
|
||||
| show | True
🗑
|
||||
| 3 Types of Power Loss in Transformers | show 🗑
|
||||
| show | Copper Losses
🗑
|
||||
| Power loss due to a large swirling current created by electromagnetic induction. | show 🗑
|
||||
| show | hysteresis
🗑
|
||||
| A device that varies input voltage to a transformer to control its output voltage | show 🗑
|
||||
| show | False, Located between the power source and the primary side of the transformer
🗑
|
||||
| Another name for Autotransformer | show 🗑
|
||||
| show | Single, Single
🗑
|
||||
| Autotransformers work on the principle of ____ induction | show 🗑
|
||||
| show | Vs #T1
-- = ---
Vp #Tt
Vs=Voltage secondary
Vp=Voltage primary
#T1=# of tapped turns
#Tt=# of Total turns
🗑
|
||||
| Why is it not recommended to change KVP while the exposure is happening | show 🗑
|
||||
| show | 1.Choke Coil
2.Rheostat
3.High Frequency circuit
🗑
|
||||
| show | False. they work on the principle of Self Induction
🗑
|
||||
| show | Alternating
🗑
|
||||
| show | True
🗑
|
||||
| A variable resistor is also known as a | show 🗑
|
||||
| Rheostats can use either DC or AC. True or False | show 🗑
|
||||
| show | True
🗑
|
||||
| show | True, AC comes in and is rectified to DC current, flows into the Capacitor, then into the H-F Converter to be changed into AC, it is then used in the Transformers, then changed back to DC in the Filter/Capacitor to be used in the Tube.
🗑
|
||||
| ____ is defined as the process of changing AC to DC | show 🗑
|
||||
| show | 1.Self-rectification
2.Vacuum tube or solid state diode rectification
🗑
|
||||
| show | valve tubes
🗑
|
||||
| show | False, between the SECONDARY side of the transformer and the tube
🗑
|
||||
| show | limitations to low exposure factors
🗑
|
||||
| show | self half wave
🗑
|
||||
| Diode rectification allows current to only pass in one direction only. True or False | show 🗑
|
||||
| if only one or two diodes are present in a circuit it is considered ____ ____ rectification | show 🗑
|
||||
| If there are 4 diodes in a circuit it is considered _____ _____ rectification | show 🗑
|
||||
| Rectifiers suppess the inverse voltage reducing the possibility of reverse flow this allows greater use of higher technical factors. True or False | show 🗑
|
||||
| show | using the entire AC wave results in the production of a high percentage of low energy xrays but can be eliminated by either filtration or 3phase/high frequency generator
🗑
|
||||
| show | True
🗑
|
||||
| show | semiconductors
🗑
|
||||
| 3 types of energy bands | show 🗑
|
||||
| show | False, in a conductor the 2 bands overlap allowing for electrons to move freely
🗑
|
||||
| show | False, in an insulator the forbidden band is very large, so no electrons can "jump" to the conduction band
🗑
|
||||
| in a semiconductor the valance band and the conduction band have a small forbidden band in between them. Allowing for movement under controlled conditions. True or False | show 🗑
|
||||
| show | Silicon
🗑
|
||||
| show | Arsenic
🗑
|
||||
| show | Doped
🗑
|
||||
| in N type silicon the n stands for what | show 🗑
|
||||
| show | electrons
🗑
|
||||
| what is the element that is mixed in silicon to create a P-Type silicon compound | show 🗑
|
||||
| In P type silicon the P stands for what | show 🗑
|
||||
| Gallium gives silicon what | show 🗑
|
||||
| show | True
🗑
|
||||
| what is the name of the junction in a solid state rectifier | show 🗑
|
||||
| show | The outside edges polarity flips and the electrons and holes are attracted back to the edges.
🗑
|
||||
| What is Barrier voltage or Potential hill | show 🗑
|
||||
| Stacks of individual diodes are called what | show 🗑
|
||||
| show | 1.Compact Size
2.No Filament
3.Low Forward voltage drop
4.Low reverse current at max voltage
5.Long life due to rugged construction
🗑
|
||||
| show | True
🗑
|
||||
| show | False, It however does make a loud BANG sound
🗑
|
||||
| What is the test that can determine if a single phase unit has a damaged rectifier | show 🗑
|
||||
| show | oscilloscope
🗑
|
||||
| If trying to determine the # of dots that would be present in a half wave rectifier you would use what formula. | show 🗑
|
||||
| If trying to determine the # of dots that would be present in a full wave rectifier you would use what formula. | show 🗑
|
||||
| If given the # of dots in a half wave rectifier and you need to find out the time used to achieve it what formula would you use | show 🗑
|
||||
| If given the # of dots in a full wave rectifier and you need to find the time used to achieve it, what formula would you use | show 🗑
|
||||
| Electrical and magnetic components of an electromagnetic wave oscillate(vibrate) in mutually perpendicular planes. True or False | show 🗑
|
||||
| show | 1.Bremsstrahlung
2.Characteristic
🗑
|
||||
| Brems radiation occurs when electrons slow down or decelerate near the nucleus of an atom. True or False | show 🗑
|
||||
| What are the different types of interactions that cause Brems radiation (3) | show 🗑
|
||||
| show | True
🗑
|
||||
| Characteristic radiation is produced at tube potentials less then ____ Kvp | show 🗑
|
||||
| What is a pole transformer | show 🗑
|
||||
| Pole Transformers are a step down transformer True or false | show 🗑
|
||||
| 120v-240v coming into the building is called what | show 🗑
|
||||
| show | 2 hot wires (current flowing) and 1 ground
🗑
|
||||
| show | True
🗑
|
||||
| The part of the circuit attached to the secondary coil of the transformer is the secondary or high voltage circuit. True or False | show 🗑
|
||||
| show | Primary Circuit
🗑
|
||||
| The Main switch is usually this | show 🗑
|
||||
| an AC voltmeter connected in parallel with the autotransformer, that is, across the primary circuit between the autotransformer and the transformer. this is called what | show 🗑
|
||||
| show | Also known as exposure button
🗑
|
||||
| a timer using a wound spring with the accuracy of about 0.25 seconds. | show 🗑
|
||||
| _____ are used in 6pulse and 12pulse equipment with electronic timers | show 🗑
|
||||
| A Thyristor is what | show 🗑
|
||||
| show | a special gas-filled triode that becomes conductive at a particular, critical voltage
🗑
|
||||
| Electronic timers are accurate down to ______ time | show 🗑
|
||||
| show | Automatic Exposure Control
🗑
|
||||
| show | 1.phototube(photomultiplier)
2.Ionization chamber
🗑
|
||||
| The back up timer on AEC is used for what. | show 🗑
|
||||
| The primary circuit of the Filament circuit supplies the heating current, but the current must be reduced to __-__ amps and __-__ volts by the rheostat | show 🗑
|
||||
| show | Ohms
🗑
|
||||
| show | Voltage
🗑
|
||||
| show | step down
🗑
|
||||
| show | True
🗑
|
||||
| show | Space Charge Compensator
🗑
|
||||
| The secondary coil of the transformer and all devices to which it is connected electrically are part of the ____ circuit | show 🗑
|
||||
| show | milliammeter
🗑
|
||||
| Milliammeters are grounded together with the midpoint of the secondary coil of the transformer it is at zero potential and can be safely mounted to the control panel. True or False | show 🗑
|
||||
| show | milliammeter, ammeter
🗑
|
||||
| mAs Meter (milliampere-second meter)measures the product of the mA and time. True or False | show 🗑
|
||||
| the ______ does not register until the xray switch is closed (type of meter) | show 🗑
|
||||
| show | filament ammeter and kilovoltmeter
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Ravann
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