Airframe Quiz 4

Hole filling fasteners (for example, MS20470 rivets) should not be used in composite structures primarily because of the

• possibility of causing delamination

• increased possibility of fretting corrosion in the fastener

• difficulty in forming a proper shop head

The point at which freon flowing through a vapor-cycle cooling system gives up heat and changes from a gas to a liquid is the

• condenser

• evaporator

• expansion valve

Which of the following, when added to wet resins, provide strength for the repair of damaged fastener holes in composite panels?

• Flox and chopped fibers

• microballoons

• microballoons and flox

An airplane that has a tendency to gradually increase a pitching moment that has been set into motion has

• poor longitudinal stability

• good lateral stability

• poor lateral stability

Many fuel tanks incorporate _________________ valves to prevent fuel from flowing away from the boost pump or tank outlet when the aircraft is in a high 'G' maneuver.

• flapper

• check

• dump

In some aircraft with several fuel tanks, the possible danger of allowing the fuel supply in one tank to become exhausted before the selector valve is switched to another tank is prevented by the installation of

• a fuel pressure warning signal system

• a fuel pressure relief valve

• an engine fuel pump bypass valve

Frost or ice buildup on a vapor-cycle cooling system evaporator would most likely be caused by

• the mixing valve sticking closed

• moisture in teh evaporator

• inadequate airflow through the evaporator

On modern large aircraft, what electronic device typically monitors flight parameters and performs autopilot functions?

• flight management computer

• transponder

• control/display unit

A fire extinguisher container can be checked to determine its charge by

• attaching a remote pressure gauge

• weighing the container and its contents

• a hydrostatic test

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.