Caution & Guidance System

AIRFRAME RATING

The angle-of-attack detector operates from differential pressure when the airstream...

• Is parallel to the angle of attack of the aircraft.

• Is not parallel to the true angle of attack of the aircraft.

• Is parallel to the longitudinal axis of the aircraft.

• 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?

• Landing gear position system

• Anti-skid system

• Aural warning system

• Anti-skid system

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.

• Landing gear locked down and throttle advanced.

• Landing gear locked down and throttle retarded.

• Landing gear not locked down and throttle retarded.

An anti-skid system is...

• An electrohydraulic system.

• A hydraulic system.

• An electrical system.

• An electrohydraulic system.

The rotor in an autosyn remote indicating system uses...

• Neither an electromagnet nor a permanent magnet.

• A permanent magnet.

• An electromagnet.

• An electromagnet.

1) An airspeed indicator measures the differential between pitot and static air pressures surrounding the aircraft at any moment of flight. (2) An airspeed indicator measures the differential between pitot and cabin air pressures at any moment of flight. Regarding the above statements, 

• Only No. 1 is true.

• Only No. 2 is true.

• Both No. 1 and No. 2 are true.

• Only No. 1 is true.

In most modern hydraulically actuated landing gear systems, the order of gear and fairing door operation is controlled by...

• Shuttle valves

• Microswitches

• Sequence valves

• Sequence valves

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...

• An ignition system switch not set for takeoff.

• A thrust lever.

• An 80 knot airspeed sensor.

• A thrust lever.

The pneumatic (reed) type stall warning system installed in some light aircraft is activated by...

• Negative air pressure

• Positive air pressure

• Static air pressure

• Negative air pressure

Where is the landing gear safety switch usually located?

• On the landing gear drag brace.

• On the main gear shock strut.

• On the pilot's control pedestal.

• On the main gear shock strut.

A typical takeoff warning indication system, in addition to throttle setting, monitors the position of which of the following?

• Ailerons, elevators, speed brake, and steerable fuselage landing gear.

• Aerodynamically actuated slats, elevators, flaps, and speed brakes.

• Elevators, speed brake, flaps, and stabilizer trim.

• Elevators, speed brake, flaps, and stabilizer trim.

 (1) When an airplane is slowed below approximately 20 MPH, the anti-skid system automatically deactivates to give the pilot full control of the brakes for maneuvering and parking. (2) An anti-skid system consists basically of three components; wheel speed sensors, control box, and control valves.

• Only No. 1 is true.

• Only No. 2 is true.

• Both No. 1 and No. 2 are true.

• Both No. 1 and No. 2 are true.

The rotor in a magnesyn remote indicating system uses

• An electromagnet and a permanent magnet.

• An electromagnet.

• A permanent magnet.

• A permanent magnet.

Which repair would require a landing gear retraction test?

• Red warning light bulb

• Gear downlock microswitch

• Landing gear safety switch

• Gear downlock microswitch

Microswitches are used primarily as limit switches to

• Prevent overcharging of a battery.

• Limit generator output.

• Control electrical units automatically.

• Control electrical units automatically.

Which of the following functions does a skid control system perform? 

1. Normal skid control 

2. Normal braking 

3. Fail safe protection 

4. Locked wheel skid control 

5. Touchdown protection 

6. Takeoff protection 

• 1, 3, 4, 5

• 1, 2, 5, 6

• 1, 2, 3, 4

• 1, 3, 4, 5

Landing gear warning systems usually provide which of the following indications?

• Red light for unsafe gear; green light for gear up.

• Green light for gear up and down; red light for unsafe gear.

• Red light for unsafe gear; green light for gear down; no light for gear up.

• Red light for unsafe gear; green light for gear down; no light for gear up.

(1) An anti-skid system is designed to apply enough force to operate just below the skid point. (2) A warning lamp lights in the cockpit when the anti-skid system is turned off or if there is a system failure.

Regarding the above statements,

• Only No. 1 is true.

• Both No. 1 and No. 2 are true.

• Only No. 2 is true.

• Both No. 1 and No. 2 are true.

Which of the following are some uses for a DC-selsyn system? 

1. Indicates position of retractable landing gear. 

2. Indicates the angle of incidence of an aircraft. 

3. Indicates the altitude of an aircraft. 

4. Indicates cowl flaps or oil cooler door position. 

5. Indicates fuel quantity. 

6. Indicates the rate of climb of an aircraft. 

7. Indicates position of wing flaps. 

• 2, 3, 4, 5

• 1, 4, 5, 7

• 2, 3, 5, 6

• 1, 4, 5, 7

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

• Speed break position

• Flap/slat position

• Trim position

The basic difference between an autosyn and a magnesyn indicating system is the

• Transmitter

• Rotor

• Receiver

• Rotor

In an anti-skid system, wheel skid is detected by

• A discriminator.

• A sudden rise in brake pressure.

• An electrical sensor.

• An electrical sensor.

In the air with the anti-skid armed, current cannot flow to the anti-skid control box because the landing gear

• Anti-skid valves are open.

• Down and lock switch is open.

• Squat switch is open.

• Squat switch is open.

An anti-skid system is designed to

• Solely sense the deceleration rate of every main landing gear wheel.

• Release then reapply pressure at a slightly lower value only when a skid is detected.

• 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.

• 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.

Stall warning systems are generally designed to begin warning the pilot when a stall

• Is imminent.

• Is starting to occur.

• First affects the outboard portions of the wings.

• Is imminent.

What safety device is actuated by the compression and extension of a landing gear strut?

• Uplock switch

• Ground safety switch

• Downlock switch

• Ground safety switch

At what point in the landing operation does normal skid control perform its function?

• When wheel rotation indicates hydroplaning condition.

• When wheel rotation deceleration indicates an impending skid.

• Anytime the wheel is rotating.

• When wheel rotation deceleration indicates an impending skid.

Anti-skid braking systems are generally armed by

• The rotation of the wheels above a certain speed.

• The application of brakes.

• A switch in the cockpit.

• A switch in the cockpit.

(1) A DC-selsyn system is a widely used electrical method of indicating a remote mechanical movement or position.

(2) A synchro-type indicating system is an electrical system used for transmitting information from one point to another.

Regarding the above statements, 

• Only No. 1 is true. 

• Only No. 2 is true.

• Both No. 1 and No. 2 are true.

• Both No. 1 and No. 2 are true.

In a brake anti-skid system, when an approaching skid is sensed, an electrical signal is sent to the skid control valve which

• Equalizes the hydraulic pressure in adjacent brakes.

• Relieves the hydraulic pressure on the brake.

• Acts as a bypass for the debooster cylinders.

• Relieves the hydraulic pressure on the brake.

What landing gear warning device(s) is/are incorporated on retractable landing gear aircraft?

• A visual indicator showing gear position.

• A horn or other aural device and a red warning light.

• A light which comes on when the gear is fully down and locked.

• A horn or other aural device and a red warning light.