SIFT Aircraft Components and Controls Questions and Answers 2

Question 1

What is the primary purpose of the collective pitch control in a helicopter?

Accepted Answer

To simultaneously change the pitch angle of all main rotor blades

Answer

To control the tail rotor thrust

Answer

To control the cyclic pitch for directional movement

Answer

To adjust engine throttle automatically

Question 2

What does the term 'semi-monocoque' refer to in aircraft construction?

Accepted Answer

A fuselage structure where the skin shares stress loads with internal framework

Answer

A fuselage structure using only an outer skin with no internal framework

Answer

A wing design using composite materials only

Answer

A landing gear type with semi-rigid shock absorbers

Question 3

What is the function of the anti-torque pedals in a helicopter?

Accepted Answer

Control the pitch of the tail rotor blades to counteract torque

Answer

Control engine power output

Answer

Control the pitch of the main rotor blades

Answer

Activate the wheel brakes during landing

Question 4

What component in a helicopter transmission system allows the rotor to continue spinning when the engine fails?

Accepted Answer

The freewheeling unit (one-way clutch)

Answer

The centrifugal clutch

Answer

The synchronizing shaft

Answer

The governor

Question 5

What is the purpose of the horizontal stabilizer on a helicopter?

Accepted Answer

To provide aerodynamic stability and reduce pitch oscillations

Answer

To provide lift for forward flight

Answer

To prevent the tail rotor from producing too much thrust

Answer

To control altitude via collective movement

Question 6

What does 'chord' refer to in relation to rotor blades or wings?

Accepted Answer

The imaginary straight line from the leading edge to the trailing edge

Answer

The distance from rotor hub to blade tip

Answer

The angle between the blade and the horizontal plane

Answer

The thickness of the blade at its widest point