Electrical Systems
Aircraft electrical junction boxes located in a fire zone are usually constructed of what?
What is stainless steel
Cases for electrically operated instruments are made of what?
What is iron or steel.
Components containing phosphate ester-base hydraulic fluid may be cleaned with what?
What is Stoddard solvent.
What type loads cause the most rivet failures?
What is shear.
Many fuel tanks incorporate what kind of valves to prevent fuel from flowing away from the boost pump or tank outlet when the aircraft is in a high 'G' maneuver?
What is flapper
The major advantages of alternating current (AC) over direct current (DC) is the fact that its current and voltage can easily be increased or decreased by means of a what?
What is transformer.
Fuel flow transmitters are designed to transmit data how?
What is electrically.
Some hydraulic systems incorporate a device which is designed to remain open to allow a normal fluid flow in the line, but closed if the fluid flow increases above an established rate. This device is generally referred to as a what?
What is a hydraulic fuse.
A resurfaced soldering iron cannot be used effectively until after the working face has been what?
What is tinned.
What method is used on turbine-powered aircraft to determine when the condition of the fuel is approaching the danger of forming ice crystals?
What is the fuel temperature indicator.
What protection to wires and cables does conduit provide when used in aircraft installations?
What is mechanical
What is the fixed line mark attached to the compass bowl of a magnetic compass called?
What is the lubber line.
In a gear-type hydraulic pump, a mechanical safety device incorporated to protect the pump from overload is called what?
What is shear pin.
How should a welding torch flame be adjusted to weld stainless steel?
What is slightly carburizing.
What should be used to inert an integral fuel tank before attempting repairs?
What is CO(2)
Electric wire terminals for most aircraft applications must be what type?
What is ring.
A Bourdon tube instrument may be used to indicate what?
What is pressure and temperature.
The internal resistance of a fluid which tends to prevent it from flowing is called what?
What is viscosity
Which rivet is used for riveting magnesium alloy structures?
What is 5056 aluminum.
Fuel heaters are used with fuel systems for turbine engines to prevent what in the fuel from clogging system filters?
What is ice crystals.
What is the frequency of an alternator dependent upon?
What is RPM
The maximum deviation (during level flight) permitted in a compensated magnetic direction indicator installed on an aircraft certificated under 14 CFR Part 23 is how many degrees?
What is 10°.
Petroleum-base hydraulic fluid is which color?
What is red.
What should be the included angle of a twist drill for hard metal?
What is 118°
What is the minimum distance allowed between a fuel tank and the fire wall separating the engine?
What is one-half inch.