Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Rad Physics Test 1
Carlton Adler
| Question | Answer |
|---|---|
| Current is | |
| liberated as heat | |
| inhibit movement of electrical charge | |
| If the distance between two electrical charges is doubled, the force between them is | |
| Resistance is | the opposition to the flow of electrons |
| If a conductor is positively charged | is deficient in electrons |
| The mA is a unit of | current |
| A magnetic field is produced by | electric charges in motion |
| A diode electron tube | can be used for rectification |
| The process of electrons being emitted from heated metallic surfaces is called | thermionic emission |
| A generator is a device that converts | mechanical energy into electrical |
| A simple DC generator has essentially the same construction as an AC generator except that a DC generator has | a commutator |
| A rectifier | converts AC to DC |
| A motor is a device that converts | heat energy into electrical energy |
| A bar magnet and a wire loop move with the same linear velocity. What is the voltage induced in the wire? | zero |
| Conventional current flows | from anode to cathode |
| Where is the stator of the anode induction motor located | outside the glass envelope and outside the rotor |
| The exposure shift on an x ray machine is intended to | both initiate and terminate the exposure |
| The exposure switch is found between the | autotransformer and the timer circuit |
| All of the following are radiographer-operated controls except | generator selection |
| The advantage of a curved top radiograph table is the | smaller object image distance |
| The Bucky tray consist of | a moving 17X17 grid |
| Backup time | cannot exceed the tube limit and should not be set at 150 percent of expected manual mAs |
| Radiographic rooms equipped with a tilting table are primarily designed for performing __ procedures | diagnostic and fluroscopic |
| The height of the average radiographic tabletop to the floor is __ inches | 40 |
| Tube suspension systems include which of the following | overhead tube suspension, mobile tube suspension system and c arm tube suspension |
| Which tube suspension system offers the greatest multidirectional movement? | overhead tube suspension |
| Nearly all x ray equipment operate from an incoming line of | 210v |
| When full wave rectification is applied to three phase current, a __ ripple is produced | voltage |
| Ancillary equipment for tilting tables includes | a footboard, handgrips, and shoulder supports |
| The diagnostic x ray range is qpproximately | 10 to 1,200 mA, 0.001 - 10 seconds, and 25 to 150 kVp |
| The incoming line current is supplied | to approximately 60 volts |
| An indicated current in a wire loop | can result only from an alternately expanding and contracting magnetic field |
| A stator consist of | electromagnets |
| Electric potiental is measured in | volts |
Created by:
wloucks08
Popular Radiology sets