Exam quiz Aircraft General Knowledge - SPL - Sailplane Pilot License

Question 1

The term "inclination" is defined as...

Accepted Answer

Angle between earth's magnetic field lines and horizontal plane.

Answer

Deviation induced by electrical fields.

Answer

Angle between magnetic and true north

Answer

Angle between airplane's longitudinal axis and true north.

Question 2

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 3

The maximium load according load sheet has been exceeded. What action has to be taken?

Accepted Answer

Reduce load

Answer

Increase speed by 15%

Answer

Trim "pitch-down"

Answer

Trim "pitch-up"

Question 4

What kind of defect results in loss of airworthiness of an airplane?

Accepted Answer

Damage to load-bearing parts

Answer

Dirty wing leading edge

Answer

Crack in the cabin hood plastic

Answer

Scratch on the outer painting

Question 5

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 6

What is the meaning of the red range on the airspeed indicator?

Accepted Answer

Speed which must not be exceeded regardless of circumstances

Answer

Speed which must not be exceeded within bumpy air

Answer

Speed which must not be exceeded with flaps extended

Answer

Speed which must not be exceeded in turns with more than 45° bank

Question 7

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 8

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 9

Which instrument can be affected by the hysteresis error?

Accepted Answer

Altimeter

Answer

Direct reading compass

Answer

Tachometer

Answer

Vertical speed indicator

Question 10

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 11

An energy-compensated vertical speed inicator (VSI) shows during stationary glide the vertical speed...

Accepted Answer

Of the airmass flown through.

Answer

Of the glider through surrounding air

Answer

Of the glider plus movement of the air

Answer

Of the glider minus movement of the air.

Question 12

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 13

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 14

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

Accepted Answer

330°

Answer

270°

Answer

030°

Answer

360°

Question 15

Which of the stated materials shows the highest strength?

Accepted Answer

Carbon fiber re-inforced plastic

Answer

Magnesium

Answer

Aluminium

Answer

Wood

Question 16

The compass error caused by the aircraft's magnetic field is called...

Accepted Answer

Deviation

Answer

Inclination

Answer

Variation.

Answer

Declination.

Question 17

A movement around the longitudinal axis is primarily initiated by the...

Accepted Answer

Ailerons.

Answer

Elevator.

Answer

Trim tab.

Answer

Rudder

Question 18

What difference in altitude is shown by an altimeter, if the reference pressure scale setting is changed from 1000 hPa to 1010 hPa?

Accepted Answer

80 m more than before

Answer

Zero

Answer

80 m less than before

Answer

Values depending on QNH

Question 19

Airspeed indicator, altimeter and vertical speed indicator all show incorrect indications at the same time. What error can be the cause?

Accepted Answer

Blocking of static pressure lines.

Answer

Leakage in compensation vessel.

Answer

Blocking of pitot tube

Answer

Failure of the electrical system.

Question 20

Which of the following states the working principle of an airspeed indicator?

Accepted Answer

Total air pressure is measured and compared against static air pressure

Answer

Dynamic air pressure is measured by the Pitot tube and converted into a speed indication by the airspeed indicator

Answer

Total air pressure is measured by the static ports and converted into a speed indication by the airspeed indicator

Answer

Static air pressure is measured and compared against a vacuum.

Question 21

The Caution Area is marked on an airspeed indicator by what color?

Accepted Answer

Yellow

Answer

Red

Answer

Green

Answer

White

Question 22

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 23

The Pitot / static system is required to...

Accepted Answer

Measure total and static air pressure.

Answer

Prevent potential static buildup on the aircraft.

Answer

Prevent icing of the Pitot tube.

Answer

Correct the reading of the airspeed indicator to zero when the aircraft is static on the ground.

Question 24

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

Question 25

During a flight in colder-than-ISA air the indicated altitude is...

Accepted Answer

Higher than the true altitude

Answer

Eqal to the true altitude.

Answer

Equal to the standard altitude.

Answer

Lower than the true altitude

Question 26

What is the purpose of winglets?

Accepted Answer

Reduction of induced drag.

Answer

To increase efficiency of aspect ratio.

Answer

Increase gliging performance at high speed.

Answer

Increase of lift and turning manoeuvering capabilities.

Question 27

A flight level is a...

Accepted Answer

Pressure altitude.

Answer

True altitude.

Answer

Altitude above ground.

Answer

Density altitude.

Question 28

When trimming an aircraft nose up, in which direction does the trim tab move?

Accepted Answer

It moves down

Answer

In direction of rudder deflection

Answer

It moves up

Answer

Depends on CG position

Question 29

The trim is used to...

Accepted Answer

Adapt the control force.

Answer

Increase adverse yaw.

Answer

Move the centre of gravity

Answer

Lock control elements.

Question 30

What engines are commonly used with Touring Motor Gliders (TMG)?

Accepted Answer

4 Cylinder; 4 stroke

Answer

2 plate Wankel

Answer

2 Cylinder Diesel

Answer

4 Cylinder 2 stroke

Question 31

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 32

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 33

Which levers in a glider's cockpit are indicated by the colors red, blue and green? Levers for usage of ...

Accepted Answer

Cabin hood release, speed brakes, elevator trim

Answer

Gear, speed brakes and elevator trim tab.

Answer

Speed brakes, cable release and elevator trim.

Answer

Speed brakes, cabin hood lock and gear.

Question 34

Water ballast increases wing load by 40%. By what percentage does the minimum speed of the glider plane increase?

Accepted Answer

18%

Answer

100%

Answer

40%

Answer

200%

Question 35

A glider's trim lever is used to...

Accepted Answer

Reduce stick force on the elevator.

Answer

Reduce stick force on the ailerons.

Answer

Reduce stick force on the rudder.

Answer

Reduce the adverse yaw.

Question 36

The load factor "n" describes the relationship between...

Accepted Answer

Lift and weight

Answer

Weight and thrust.

Answer

Drag and lift

Answer

Thrust and drag.

Question 37

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 38

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 39

A vertical speed indicator connected to a too big equalizing tank results in...

Accepted Answer

Indication too high

Answer

Mechanical overload

Answer

No indication

Answer

Indication too low

Question 40

A vertical speed indicator measures the difference between...

Accepted Answer

Instantaneous static pressure and previous static pressure.

Answer

Total pressure and static pressure.

Answer

Dynamic pressure and total pressure.

Answer

Instantaneous total pressure and previous total pressure.

Question 41

The measurement of altitude is based on the change of the...

Accepted Answer

Static pressure.

Answer

Dynamic pressure.

Answer

Total pressure.

Answer

Differential pressure.

Question 42

How is referred to a tubular steel construction with a non self-supporting skin?

Accepted Answer

Grid construction

Answer

Honeycomb structure

Answer

Monocoque construction

Answer

Semi-monocoque construction.

Question 43

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 44

The airspeed indicator is unservicable. The airplane may only be operated...

Accepted Answer

When the airspeed indicator is fully functional again.

Answer

If no maintenance organisation is around.

Answer

If only airfield patterns are flown

Answer

When a GPS with speed indication is used during flight.

Question 45

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

Question 46

An aircraft in the northern hemisphere intends to turn on the shortest way from a heading of 030° to a heading of 180°. At approximately which indicated magnetic heading should the turn be terminated?

Accepted Answer

210°.

Answer

150°

Answer

180°

Answer

360°

Question 47

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 48

The fuselage structure may be damaged by...

Accepted Answer

Exceeding the manoeuvering speed in heavy gusts

Answer

Airspeed decreasing below a certain value.

Answer

Neutralizing stick forces according to actual flight state

Answer

Stall after exceeding the maximum angle of attack.

Question 49

The trim wheel or lever in the cockpit is moved aft by the pilot. What effect does this action have on the trim tab and on the elevator?

Accepted Answer

The trim tab moves down, the elevator moves up

Answer

The trim tab moves up, the elevator moves down

Answer

The trim tab moves up, the elevator moves up

Answer

The trim tab moves down, the elevator moves down

Question 50

About how many axes does an aircraft move and how are these axes called?

Accepted Answer

3; vertical axis, lateral axis, longitudinal axis

Answer

4; vertical axis, lateral axis, longitudinal axis, axis of speed

Answer

3; x-axis, y-axis, z-axis

Answer

4; optical axis, imaginary axis, sagged axis, axis of evil

Question 51

Which constructional elements give the wing its profile shape?

Accepted Answer

Rips

Answer

Planking

Answer

Tip

Answer

Spar

Question 52

The sandwich structure consists of two...

Accepted Answer

Thin layers and a light core material.

Answer

Thick layers and a light core material.

Answer

Thick layers and a heavy core material.

Answer

Thin layers and a heavy core material

Question 53

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 54

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 55

An aircraft cruises on a heading of 180° with a true airspeed of 100 kt. The wind comes from 180° with 30 kt. Neglecting instrument and position errors, which will be the approximate reading of the airspeed indicator?

Accepted Answer

100 kt

Answer

130 kt

Answer

30 kt

Answer

70 kt

Question 56

In which way may an altimeter subscale which is set to an incorrect QNH lead to an incorrect altimeter reading?

Accepted Answer

If the subscale is set to a higher than actual pressure, the indication is too high. This may lead to much closer proximity to the ground than intended

Answer

If the subscale is set to a lower than actual pressure, the indication is too low. This may lead to much closer proximity to the ground than intended

Answer

If the subscale is set to a higher than actual pressure, the indication is too low. This may lead to much greater heights above the ground than intended

Answer

If the subscale is set to a lower than actual pressure, the indication is too high. This may lead to much closer proximity to the ground than intended

Question 57

What values are usually marked with a red line on instrument displays?

Accepted Answer

Operational limits

Answer

Caution areas

Answer

Operational areas

Answer

Recommended areas

Question 58

What is a cause for the dip error on the direct-reading compass?

Accepted Answer

Inclination of earth's magnetic field lines

Answer

Acceleration of the airplane

Answer

Temperature variations

Answer

Deviation in the cockpit

Question 59

Lower-than-standard temperature may lead to...

Accepted Answer

An altitude indication which is too high.

Answer

An altitude indication which is too low.

Answer

A correct altitude indication as long as the altimeter subscale is set to correct for non-standard temperature.

Answer

A blockage of the Pitot tube by ice, freezing the altimeter indication to its present value.

Question 60

The term "static pressure" is defined as pressure...

Accepted Answer

Of undisturbed airflow

Answer

Inside the airplane cabin.

Answer

Resulting from orderly flow of air particles.

Answer

Sensed by the pitot tube.

Question 61

During a flight in an air mass with a temperature equal to ISA and the QNH set correctly, the indicated altitude is...

Accepted Answer

Equal to the true altitude.

Answer

Lower than the true altitude.

Answer

Equal to the standard atmosphere.

Answer

Higher than the true altitude.

Question 62

A true altitude is...

Accepted Answer

An altitude above mean sea level corrected for non-standard temperature.

Answer

A height above ground level corrected for non-standard temperature.

Answer

A height above ground level corrected for non-standard pressure.

Answer

A pressure altitude corrected for non-standard temperature.

Question 63

During a left turn, the yaw string is drawn to the left from center position. By what rudder input can the string be centered again?

Accepted Answer

More bank, less rudder in turn direction

Answer

Less bank, more rudder in turn direction

Answer

Less bank, less rudder in turn direction

Answer

More bank, more rudder in turn direction

Question 64

Which of the mentioned cockpit instruments is connected to the pitot tube?

Accepted Answer

Airspeed indicator

Answer

Direct-reading compass

Answer

Altimeter

Answer

Vertical speed indicator

Exam simulation Aircraft General Knowledge SPL - Sailplane Pilot License

Exam simulation SPL Aircraft General Knowledge 120 questions on 120 minutes