PPL PPL Aircraft Systems and Powerplant 3

Question 1

What is the purpose of the ELT (Emergency Locator Transmitter)?

Accepted Answer

To automatically transmit a distress signal when activated by crash impact

Answer

The ELT activates automatically upon crash impact and transmits a distress signal on 406 MHz to the COSPAS-SARSAT satellite system, helping rescue teams locate the aircraft.

Question 2

What type of landing gear is most common on modern training aircraft?

Accepted Answer

Fixed tricycle gear with a nosewheel

Answer

Fixed tricycle landing gear (nosewheel plus two main gear) is standard on training aircraft because it provides ground stability and is mechanically simple.

Question 3

What does the stall warning horn alert the pilot to?

Accepted Answer

The wing approaching the critical angle of attack near the stall

Answer

The stall warning horn activates when the wing angle of attack approaches the critical (stall) angle, warning the pilot of an impending aerodynamic stall.

Question 4

What aerodynamic effect do flaps primarily provide?

Accepted Answer

They increase lift and drag, enabling slower approach speeds and steeper descent angles

Answer

Flaps increase wing camber and surface area, generating more lift and drag at lower airspeeds, allowing slower and steeper approaches to landing.

Question 5

What does a suction gauge measure in a light aircraft?

Accepted Answer

The vacuum pressure used to drive gyroscopic flight instruments

Answer

The suction gauge measures vacuum pressure generated by the vacuum pump, which spins gyroscopic instruments including the attitude indicator and directional gyro.

(PPL) Private Pilot Licence Practice Test

(PPL) Private Pilot Licence Practice Test

PPL PPL Aircraft Systems and Powerplant 3