1) In an Antiskid system, wheel skid is detected by Report

a sudden rise in brake pressure

a discriminator

an electrical sensor

2) An antiskid braking systems are generally armed by Report

A centrifugal switch

a switch in the cockpit

Landing Gear Switch

3) When a landing gear safety switch on a main strut closes at lift off, which system is deactivated Report

Landing gear position system

Antiskid system

Aural warning system

4) When the movable horizontal stabilizer moves upward, aircraft Report

Nose up

Nose down

straight path

5) Regarding engine nacelle Report

Is used to enclose the engine in a streamlined housing to improve the aerodynamics of the aircraft, to support and protect engine.

Some aircraft have landing gears which retracts into engine nacelle

All the above.

EASA Questions Heavy Aircraft Set 2