(E) Aircraft Landing System

Question 1

If the undercarriage indicator shows green?

Answer 1

Gear fully locked in the ‘down’ position

Question 2

No light in a particular group indicates that?

Answer 2

The corresponding leg is fully locked in the ‘up’ position with the doors locked shut

Question 3

A red light indicates that?

Answer 3

A leg/door is unlocked

Question 4

Micro-switches are used for?

Answer 4

Retractable landing gear indicators

The following are not used:
Pull Switches
Rotary Switches
Toggle Switches

Question 5

In the event of a hydraulic failure?

Answer 5

Alternate release of the landing gear is possible via gravity, airload, pneumatic and spring bungee

Question 6

True or False: not possible to select ‘Gear up’ when the aircraft is not airborne?

Answer 6

FALSE: It is possible to select ‘gear-up’ when the aircraft is not airborne / is on the ground

Question 7

Which of the following is not the desirable feature in a retractable landing gear installation?

Answer 7

Designed so that it is impossible to select landing gear (alighting gear) down on the controlling unit unless the aircraft is airborne.

Question 8

The locking solenoid prevents?

Answer 8

The ‘gear-up’ selection when the aircraft is not airborne

Question 9

The Bypass Solenoid releases?

Answer 9

The lock for the ‘gear up’ selection when the aircraft is on the ground for maintenance purposes