Aircraft General Knowledge - SPL - Sailplane Pilot License

Question 1

How are the flight controls on a small single-engine piston aircraft normally controlled and actuated?

Accepted Answer

Manually through rods and control cables

Answer

Hydraulically through hydraulic pumps and actuators

Answer

Electrically through fly-by-wire

Answer

Power-assisted through hydraulic pumps or electric motors

Question 2

What is necessary for the determination of speed (IAS) by the airspeed indicator?

Accepted Answer

The difference betweeen the total pressure and the static presssure

Answer

The difference between the total pressure and the dynamic pressure

Answer

The difference between the dynamic pressure and the static pressure

Answer

The difference between the standard pressure and the total pressure

Question 3

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 4

When is it necessary to adjust the pressure in the reference scale of an alitimeter?

Accepted Answer

Before every flight and during cross country flights

Answer

After maintance has been finished

Answer

Every day before the first flight

Answer

Once a month before flight operation

Question 5

An aircraft in the northern hemisphere intends to turn on the shortest way from a heading of 360° to a heading of 270°. At approximately which indication of the magnetic compass should the turn be terminated?

Accepted Answer

270°

Answer

360°

Answer

240°

Answer

300°

Question 6

What are the primary and the secondary effects of a rudder input to the left?

Accepted Answer

Primary: yaw to the left Secondary: roll to the left

Answer

Primary: yaw to the right Secondary: roll to the left

Answer

Primary: yaw to the right Secondary: roll to the right

Answer

Primary: yaw to the left Secondary: roll to the right

Question 7

What is the effect of pulling the control yoke or stick backwards?

Accepted Answer

The aircraft's tail will produce an increased downward force, causing the aircraft's nose to rise

Answer

The aircraft's tail will produce an decreased upward force, causing the aircraft's nose to drop

Answer

The aircraft's tail will produce an increased upward force, causing the aircraft's nose to rise

Answer

The aircraft's tail will produce an increased downward force, causing the aircraft's nose to drop

Question 8

Which are the advantages of sandwich structures?

Accepted Answer

Low weight, high stiffness, high stability, and high strength

Answer

High temperature durability and low weight

Answer

High strength and good formability

Answer

Good formability and high temperature durability

Question 9

What are the major components of an aircraft's tail?

Accepted Answer

Horizontal tail and vertical tail

Answer

Rudder and ailerons

Answer

Steering wheel and pedals

Answer

Ailerons and elevator

Question 10

What is the purpose of the secondary flight controls?

Accepted Answer

To improve the performance characteristics of an aircraft and relieve the pilot of excessive control forces

Answer

To improve the turn characteristics of an aircraft in the low speed regime during approach and landing

Answer

To enable the pilot to control the aircraft's movements about its three axes

Answer

To constitute a backup system for the primary flight controls

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