2AX5X Vol.2
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each of the black spaces below before clicking
on it to display the answer.
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| What instrument measures the weight of air? | show 🗑
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| What is the standard atmospheric pressure at sea level measured in inches of mercury? In psi? | show 🗑
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| What are the two temperature scales that are commonly used? | show 🗑
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| show | Because at the higher altitude, the air is less dense therefore causing less drag on the aircraft.
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| show | Camber.
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| What aerodynamic forces affect aircraft in flight? | show 🗑
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| How does drag act in relation to relative wind? | show 🗑
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| Define AOA. | show 🗑
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| How are airframe components joined? | show 🗑
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| What are the five stresses to which airframes are subjected? | show 🗑
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| show | The monocoque design.
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| show | The ribs and stringers.
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| What type of material is usually used for construction of flight control surfaces? | show 🗑
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| show | Fairing.
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| What structural unit provides a smooth airflow around and into the engine inlet? | show 🗑
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| What component controls airflow around the weapons to reduce turbulence in the bay on some bomber aircraft? | show 🗑
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| show | Doors are hinged.
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| show | Transparent plastics or safety glass.
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| How do paint removes and stripping compounds affect the plastic facings of the radome? | show 🗑
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| How are fuselage station numbers measured? | show 🗑
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| show | Vertical, lateral, and longitudinal.
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| What are the lateral control surface of the aircraft | show 🗑
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| What controls all directional movements of the aircraft? | show 🗑
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| What primary flight control guides the aircraft about the vertical axis? | show 🗑
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| Which type of stabilator has both sides connected together so that when one side moves the other side must move in the same direction and amount? | show 🗑
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| show | It is a combination of an aileron and an elevator.
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| What are five types of wing flaps? | show 🗑
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| show | If the leading edge operates in conjunction with the trailing edge flaps, then you have leading-edge flaps. If they operate independently of the flaps, they are called slats.
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| What is the purpose of the speed brakes? | show 🗑
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| List the three types of trim systems. | show 🗑
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| show | Fly-by-wire.
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| What are the two major parts of the AFCS? | show 🗑
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| What system is used to make bomber aircraft stable for launching weapons? | show 🗑
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| What auto pilot system mode automatically maintains aircraft speed? | show 🗑
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| Define electricity. | show 🗑
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| Of what particles are atoms composed? | show 🗑
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| List four examples of insulators. | show 🗑
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| List four examples of conductors. | show 🗑
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| show | In solid state devices.
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| What is EMF? | show 🗑
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| Define electrical current. | show 🗑
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| show | The type of material used, temperature, size.
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| show | Watts.
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| show | The ability of a substance to attract.
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| How are artificial magnets classified? | show 🗑
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| show | The ease of ability to conduct magnetic lines of force.
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| show | The amount of magnetism that remains in a temporary magnet.
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| How is magnetism induced in magnetic material? | show 🗑
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| Can magnetic lines of force be insulated? | show 🗑
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| What are the three most commonly used shapes of magnets? | show 🗑
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| show | Heating or excessive jarring.
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| Define flux. | show 🗑
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| How is electromagnetism developed? | show 🗑
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| show | Yes.
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| What must you know to apply the "left hand rule"? | show 🗑
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| show | The left hand rule.
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| show | By using a few terms of wire carrying a larger current or using many terms of wire carrying a small current.
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| What is the purpose of conductor? | show 🗑
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| Why are protective devices installed in aircraft electrical systems? | show 🗑
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| show | After a cooling-off period of approximately 1 minute.
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| show | Provide protection against fault currents.
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| show | Control the amount of correct flow in a circuit.
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| Why is alternating current used as the primary electrical power source in aircraft? | show 🗑
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| What is the unit of measurement for frequency? | show 🗑
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| Define phase relationship. | show 🗑
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| show | Variable-frequency and constant-frequency.
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| show | 400 Hz.
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| show | DC from an integral exciter generator is passed through windings of the rotor.
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| What are the three generators that make up a brushless AC generator? | show 🗑
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| show | Arcing (which more easily occurs in rarefied air).
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| What are the two main components of an AC generator? | show 🗑
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| What three components make up the stator? | show 🗑
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| show | To control the drive output speed and equalize the load between generators operating in parallel.
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| If CSD output rotation drives the generator below 365 Hz, what component removes the generator from the bus? | show 🗑
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| show | Disconnect the CSD.
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| What is installed on most IDGs to provide for easier installation and removal? | show 🗑
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| What are the typical functions of a GCU? | show 🗑
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| show | By varying the generator excitation field.
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| How does the frequency and load controller for each generator system regulate the frequency of the generator CSD? | show 🗑
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| show | Plates, separators, and electrolytes.
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| show | Abuse, overcharge, low solution, undercharge, and mountings.
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| What is the fundamental unit of the nickel-cadmium battery? | show 🗑
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| show | By inserting positive and negative plates in plastic cases with nylon and cellophane separators.
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| When does nickel-cadmium battery's electrolyte reach its maximum level? | show 🗑
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| show | By voltage, current used (AC or DC), and methods of motor excitation.
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| show | By reusing the current flow in a field winding or reusing current flow in armature.
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| What advantage does the series motor have over other types of motors? | show 🗑
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| How is the field winding of a shunt motor connected with the armature? | show 🗑
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| What type of T-R is used to a nickel-cadmium battery in many aircraft? | show 🗑
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| show | Converter.
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| Define matter. | show 🗑
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| Since liquids and gases have many properties in common, how are they frequently classified? | show 🗑
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| show | Molecules.
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| show | Solids.
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| show | Its elastic limit.
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| show | The amount of temperature change and the expansion characteristic of the solid.
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| show | The Its ability to conform to the shape of its containing vessel and that it has a face surface.
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| show | It must be completely enclosed in a container.
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| show | The air (gas) expands as its temperature increases, and since it is confined by the cylinder, its pressure will increase.
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| What is one of the main differences in the characteristics of gases when compared to liquids? | show 🗑
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| State the basic principle of Pascal's Law. | show 🗑
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| Under what conditions does Pascal's Law not apply to fluids? | show 🗑
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| show | If the pressure on a confined gas varies, its volume will vary inversely in the same proportion as long as the temperature does not change.
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| show | Heating a confined gas will cause an expansion (volume increase) in direct proportion to its temperature change, thus causing the piston to move.
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| What is another name for the Boyle's-Charles law? | show 🗑
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| What is the mechanical advantage ratio if a 60-pound force is used to raise a 240-pound weight? | show 🗑
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| What is the mechanical advantage ratio if a 3-pound force is used to raise 99 pounds? | show 🗑
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| show | 30 pounds of force, 5:1
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| A 20-pound force on a 3-square-inch piston can lift how much weight on a 12-square-inch piston? What is the mechanical advantage? | show 🗑
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| What is the pressure on a surface 12 square inches in area and supporting a weight of 216 pounds. | show 🗑
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| show | 2 inches.
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| show | Viscosity.
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| show | An orifice will cause more turbulence and thus more energy loss than a venturi because it is not steamlined.
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| show | By streamlining the flow.
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| What pressure difference can be observed during fluid-flow through a venturi? | show 🗑
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| How much fluid should a reservoir hold? | show 🗑
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