21-04. (H) LANDING GEAR, WHEELS, TYRES, BRAKES
All questions: 50
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1. In a hydraulic braking system, an accumulator is pre-charged to 1.600 psi. An electrically driven hydraulic pump is started and provides a system pressure of 3.000 psi. The hydraulic pressure gauge which is connected to the gas section of the accumulator, reads:
2. The pilot may be prevented from retracting the landing gear whilst the aircraft is on the ground by:
3. If the profile grooves or the tread of an aircraft tire are worn, the tire can be:
4. In some aircraft, there is a protection device to avoid the landing gear being inadvertently retracted on the ground. It consists of:
5. Gear retraction systems are classified according to the power source used for retraction and extension. Which system is the most frequently used on larger aircraft?