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15 Position and Warn

QuestionAnswer
An airspeed indicator measures the differential between pitot and static air pressure.
Where is the landing gear safety switch usually located? On the main gear shock strut.
The angle-of-attack detector operates from differential pressure when the airstream is not parallel to the true angle of attack of the aircraft.
When a landing gear safety switch on a main gear strut closes at liftoff, which system is deactivated? Antiskid system.
The basic difference between an autosyn and a magnesyn indicating system is the rotor.
(Refer to Figure 20.) What will illuminate the amber indicator light? Closing the nose, left and right wheel gear full retract switches.
An antiskid system is designed to sense the deceleration rate of every main landing gear wheel and release then reapply pressure at a slightly lower value when a skid is detected.
Which of the following conditions is most likely to cause the landing gear warning signal to sound? Landing gear not locked down and throttle retarded.
Which of the following functions does a skid control system perform? Normal skid control, fail safe protection, locked wheel skid control, touchdown protection.
Which of the following are some uses for a DC selsyn system? Indicate the position of retractable landing gear, cowl flaps position, cooler door position, fuel quantity, and position of wing flaps.
Refer to Figure 19.) What is the indication of the red landing gear position light under the following conditions? Aircraft on jacks. Landing gear in transit. Warning horn sounding. extinguished.
The rotor in an Autosyn remote indicating system uses an electromagnet.
The primary purpose of a takeoff warning system is to alert the crew that a monitored flight control is not properly set prior to takeoff. The system is activated by a thrust lever.
(Refer to Figure 20.) What is the minimum circumstance that will cause the landing gear warning horn to indicate an unsafe condition? Any gear not down and locked, and one throttle retarded.
Antiskid braking systems are generally armed by a switch in the cockpit.
Which repair would require a landing gear retraction test? Gear downlock microswitch.
A typical takeoff warning indication system, in addition to throttle setting, monitors the position of which of the following? Elevators, speed brake, flaps, and stabilizer trim.
What safety device is actuated by the compression and extension of a landing gear strut? Ground safety switch.
An antiskid system is an electrohydraulic system.
Stall warning systems are generally designed to begin warning the pilot when a stall is imminent.
(Refer to Figure 19). Which repair should be made if the gear switch was placed in UP position and the gear does not retract? Replace electrical wire No. 12.
When an airplane's primary flight control surfaces are set for a particular phase of flight, such as landing or takeoff, the corresponding control-surface indicating system will show trim position.
Landing gear warning systems usually provide which of the following indications? Red light for unsafe gear; green light for gear down; no light for gear up.
In the air with the antiskid armed, current cannot flow to the antiskid control box because the landing gear squat switch is open.
Microswitches are used primarily as limit switches to control electrical units automatically.
At what point in the landing operation does normal skid control perform its function? When wheel rotation deceleration indicates an impending skid.
(1) An antiskid system is designed to apply enough force to operate just below the skid point. (2) A warning lamp lights in the cockpit when the antiskid system is turned off or if there is a system failure. Regarding the above statements, both 1 and 2 are true.
What landing gear warning device(s) is/are incorporated on retractable landing gear aircraft? A horn or other aural device and a red warning light.
In a brake antiskid system, when an approaching skid is sensed, an electrical signal is sent to the skid control valve which relieves the hydraulic pressure on the brake.
In an antiskid system, wheel skid is detected by an electrical sensor.
The rotor in a Magnesyn remote indicating system uses a permanent magnet.
The pneumatic (reed) type stall warning system installed in some light aircraft is activated by negative air pressure.
In most modern hydraulically actuated landing gear systems, the order of gear and fairing door operation is controlled by sequence valves.
Created by: Jack Mollohan
 

 



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