Aircraft General Knowledge - SPL - Sailplane Pilot License

Question 1

The altimeter's reference scale is set to airfield pressure (QFE). What indication is shown during the flight?

Accepted Answer

Height above airfield

Answer

Altitude above MSL

Answer

Airfield elevation

Answer

Pressure altitude

Question 2

Which of the following options states the working principle of a vertical speed indicator?

Accepted Answer

Measuring the present static air pressure and comparing it to the static air pressure inside a reservoir

Answer

Measuring the vertical acceleration through the displacement of a gimbal-mounted mass

Answer

Total air pressure is measured and compared to static pressure

Answer

Static air pressure is measured and compared against a vacuum

Question 3

Which is the purpose of the altimeter subscale?

Accepted Answer

To reference the altimeter reading to a predetermined level such as mean sea level, aerodrome level or pressure level 1013.25 hPa

Answer

To correct the altimeter reading for system errors

Answer

To set the reference level for the altitude decoder of the transponder

Answer

To adjust the altimeter reading for non-standard temperature

Question 4

What is the purpose of winglets?

Accepted Answer

Reduction of induced drag.

Answer

To increase efficiency of aspect ratio

Answer

Increase gliding performance at high speed

Answer

Increase of lift and turning manoeuvring capabilities

Question 5

The vertical speed indicator measures the difference of pressure between...

Accepted Answer

The present static pressure and the static pressure of a previous moment

Answer

The present dynamic pressure and the dynamic pressure of a previous moment

Answer

The present total pressure and the total pressure of a previous moment

Answer

The present dynamic pressure and the static pressure of a previous moment

Question 6

The indication of a magnetic compass deviates from magnetic north direction due to what errors?

Accepted Answer

Deviation, turning and acceleration errors

Answer

Inclination and declination of the earth's magnetic field

Answer

Gravity and magnetism

Answer

Variation, turning and acceleration errors

Question 7

What is the meaning of the yellow arc on the airspeed indicator?

Accepted Answer

Flight only in calm weather with no gusts to avoid overload

Answer

Cautious use of flaps or brakes to avoid overload

Answer

Speed for best glide can be found in this area

Answer

Optimum speed while being towed behind aircraft

Question 8

What does the dynamic pressure depend directly on?

Accepted Answer

Air density and airflow speed squared

Answer

Lift- and drag coefficient

Answer

Air density and lift coefficient

Answer

Air pressure and air temperature

Question 9

QFE is the...

Accepted Answer

Barometric pressure at a reference datum, typically the runway threshold of an airfield

Answer

Altitude above the reference pressure level 1013.25 hPa

Answer

Magnetic bearing to a station

Answer

Barometric pressure adjusted to sea level, using the international standard atmosphere (ISA)

Question 10

The mass loaded on the plane is lower than the minimum load required by the load sheet. What action has to be taken?

Accepted Answer

Load ballast weight up to minimum load

Answer

Trim aircraft to "pitch down"

Answer

Change pilot seat position

Answer

Change incident angle of elevator

Exam questions Aircraft General Knowledge - SPL - Sailplane Pilot License

SPL - Sailplane Pilot License: Aircraft General Knowledge 10 Questions no time limit