FAA (6)

A series-wound DC electric motor will normally require. more current at low RPM than at high RPM. more current at high RPM than at low RPM. approximately the same current throughout its operating range of speed.

What mixture may be used as a deicing fluid to remove frost from an aircraft surface?. Ethylene glycol and isopropyl alcohol. Methyl ethyl ketone and ethylene glycol. Naphtha and isopropyl alcohol.

What function does the absolute pressure regulator perform in the pneumatic power system?. Regulates the compressor inlet air to provide a stabilized source of air for the compressor. Regulates the compressor outlet air pressure to stabilize the system pressure. Regulates the pneumatic system pressure to protect the moisture separator from internal explosion.

Stability about the axis which runs parallel to the line of flight is referred to as. lateral stability. longitudinal stability. directional stability.

What method is used on turbine-powered aircraft to determine when the condition of the fuel is approaching the danger of forming ice crystals?. Fuel temperature indicator. Fuel pressure warning. Fuel pressure gauge.

On a sheet metal fitting layout with a single bend, allow for stretching by. subtracting the setback from both legs. adding the setback to each leg. subtracting the setback from one leg.

If any one generator in a 24-volt DC system shows low voltage, the most likely cause is. an out-of-adjustment voltage regulator. shorted or grounded wiring. a defective reverse current cutout relay.

Extension of an oleo shock strut is measured to determine the. proper operating position of the strut. amount of oil in the strut. physical condition of the strut itself.

When using the voltage drop method of checking circuit resistance, the. input voltage must be maintained at a constant value. output voltage must be maintained at a constant value. input voltage must be varied.

Arcing in an electrically heated windshield panel usually indicates a breakdown in the. conductive coating. temperature-sensing elements. autotransformers.

The pressure source for power brakes is. the main hydraulic system. the power brake reservoir. a master cylinder.

The rotor in a Magnesyn remote indicating system uses. a permanent magnet. an electromagnet. an electromagnet and a permanent magnet.

When servicing an air conditioning system that has lost all of its freon, it is necessary to. check oil and add as necessary, evacuate the system, and add freon. check oil and add as necessary, evacuate the system, relieve vacuum, and add freon. check oil and add as necessary, and add freon.

Which of the following instrument discrepancies would require replacement of the instrument?. Case leaking, glass cracked, instrument will not zero out, or fogged. Red line missing, case leaking, or glass cracked. Instrument will not zero out, leaking at line B nut, or mounting screws loose. Leaking at line B nut, or mounting screws loose.

How may the operation of an installed emergency locator transmitter (ELT) be verified during aircraft inspection?. By tuning a communications receiver to the civil emergency frequency and activating the ELT momentarily within five minutes after the hour. By moving the deactivating switch from the DISARM position to the ARM position while monitoring the civil emergency frequency with a communications receiver at five minutes after the hour. By activating the five-G switch and turning the unit on at five minutes after the hour.

Fungicide and mildewicide additives are important for fabric covered aircraft, such as. cotton and linen. dacron and linen. glass and linen. cotton and dacron.

Hydraulic system thermal relief valves are set to open at a. higher pressure than the system relief valve. lower pressure than the system relief valve. lower pressure than the system pressure regulator.

If a wire is installed so that it comes in contact with some moving parts, what protection should be given the wire?. Pass through conduit. Wrap with soft wire solder into a shield. Wrap with friction tape.

The dihedral angle of a wing may be measured by placing a straightedge and level protractor on the. front spar. wing root. wing chord.

Threaded rivets (Rivnuts) are commonly used to. attach parts or components with screws to sheet metal. join two or more pieces of sheet metal where shear strength is desired. join two or more pieces of sheet metal where bearing strength is desired.

The Dzus turnlock fastener consists of a stud, grommet, and receptacle. The stud length is measured in. hundredths of an inch. tenths of an inch. sixteenths of an inch. inch eighths of an inch.

If the vertical fin of a single-engine, propeller-driven airplane is rigged properly, it will generally be parallel to. the vertical axis but not the longitudinal axis. the longitudinal axis but not the vertical axis. both the longitudinal and vertical axes.

In aircraft electrical systems, automatic reset circuit breakers. should not be used as circuit protective devices. are useful where only temporary overloads are normally encountered. must be used in all circuits essential to safe operation of the aircraft.

(Refer to Figure 19.) Upon completion of the landing gear extension cycle, the green light illuminated and the red light remained lit. What is the probable cause?. Short in the up limit switch. Short in the down limit switch. Short in the gear safety switch.

(Refer to Figure 3.) Which is the grip length of the flush rivet?. 3. 1. 2.

Fiberglass damage that extends completely through a laminated sandwich structure. may be repaired. must be filled with resin to eliminate dangerous stress concentrations. may be filled with putty which is compatible with resin.

Which of the following regulates the vacuum of the air pump to hold the deicing boots deflated when the pneumatic deicing system is off?. Suction relief valve. Distributor valve. Pressure regulator.

A digital fuel totalizer automatically indicates the amount of fuel used, fuel remaining, current rate of consumption, and fuel. weight aboard at takeoff. remaining at the 45-minute IFR fuel reserve. remaining, flight time at the current power setting.

A voltage regulator controls generator voltage by changing the. resistance of the generator field circuit. resistance in the generator output circuit. current in the generator output circuit.

Resistance-type temperature indicators using Wheatstone bridge or ratiometer circuits may be used to indicate the temperatures of which of the following?. Free air, carburetor air, coolant (engine), and oil temperature. Free air, carburetor air, oil temperature, and cylinder head temperature. Exhaust gas temperature and cylinder head temperature. Carburetor air, oil temperature, and cylinder head temperature.

If the right wing of a monoplane is improperly rigged to a greater angle of incidence than designated in the manufacturer's specifications, it will cause the. airplane to be off balance both laterally and directionally. airplane to pitch and roll about the lateral axis. right wing to have both an increased lift and a decreased drag.

(Refer to Figure 2.) Select the preferred drawing for proper countersinking. 1. 2. 3. All are acceptable.

What component might possibly be damaged if liquid refrigerant is introduced into the low side of a vapor-cycle cooling system when the pressure is too high or the outside air temperature is too low?. Compressor. Condenser. Evaporator.

If two actuating cylinders which have the same cross-sectional area but different lengths of stroke are connected to the same source of hydraulic pressure, they will exert. equal amounts of force and will move at the same rate of speed. different amounts of force but will move at the same rate of speed. equal amounts of force but will move at different rates of speed.

The fuel jettison valve must be designed to allow flight personnel. to close the valve at any time and the fuel must discharge clear of the aircraft. to discharge fuel clear of the aircraft. to close the valve at anytime.