PPL Aeronautical Knowledge 3

Question 1

What does a red arc on an airspeed indicator represent?

Accepted Answer

Never-exceed speed (VNE)

Answer

The red line marks VNE, the never-exceed speed.

Question 2

The white arc on the airspeed indicator represents the:

Accepted Answer

Flap operating range

Answer

The white arc is the flap operating range, from VS0 to VFE.

Question 3

Which instrument operates on the pitot-static system alone?

Accepted Answer

Airspeed indicator

Answer

The airspeed indicator uses both pitot (ram) and static pressure.

Question 4

If the pitot tube becomes blocked but the static port remains clear, the airspeed indicator will:

Accepted Answer

Act like an altimeter during climbs and descents

Answer

A blocked pitot tube with a clear static port makes the airspeed indicator behave like an altimeter.

Question 5

The attitude indicator, heading indicator, and turn coordinator most commonly rely on:

Accepted Answer

Gyroscopic principles

Answer

These are gyroscopic instruments driven by rigidity in space and precession.

(PPL) Private Pilot Licence Practice Test