Lernkartei PPL (80) Aircraft General Knowledge (Seite 1 von 3)

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

drag and lift.

thrust and drag.

lift and weight.

weight and thrust.

The fuselage structure may be damaged by...

airspeed decreasing below a certain value.

stall after exceeding the maximum angle of attack.

exceeding the manoeuvering speed in heavy gusts.

neutralizing stick forces according to actual flight state.

The thickness of the wing is defined as the distance between the lower and the upper side of the wing at the...

thickest part of the wing.

most outer part of the wing.

thinnest part of the wing.

most inner part of the wing.

The sandwich structure consists of two...

thick layers and a heavy core material.

thick layers and a light core material.

thin layers and a light core material.

thin layers and a heavy core material.

Which are the advantages of sandwich structures?

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

High strength and good formability

Good formability and high temperature durability

High temperature durability and low weight

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

Semi-monocoque construction.

Grid construction

Honeycomb structure

Monocoque construction

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

Horizontal tail and vertical tail

Steering wheel and pedals

Rudder and ailerons

Ailerons and elevator

Which constructional elements give the wing its profile shape?

Tip

Planking

Spar

Ribs

Which of the stated materials shows the highest strength?

Aluminium

Wood

Carbon fiber re-inforced plastic

Magnesium

A construction made of frames and stringer with a supporting skin is called...

Semi-monocoque construction.

Honeycomb structure.

Wood- or mixed construction.

Grid construction.

Primary fuselage structures of wood or metal planes are usually made up by what components?

Covers, stringers and forming parts

Girders, ribs and stringers

Ribs, frames and covers

Frames and stringer

Reasons for dents in the aircraft structure are...

hard landing or excessive stress.

material defects or old colour.

intense erosion or high wear.

excessive engine rpm and cylinder defects.

Number 1 on the gear designates the...

inner shock absorber.

strut.

torque link.

fork.

How is the nose or tail wheel usually controlled on small aircraft and motor gliders?

By weight movement

By the steering wheel

By the pedals

By the control column

What kind of control surface is connected with the nose wheel?

Trim rudder

Rudder

Aileron

Elevator

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

3; vertical axis, lateral axis, longitudinal axis

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

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

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

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

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

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

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

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

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

rudder.

ailerons.

elevator.

trim tab.

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

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

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

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

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

What is the purpose of the secondary flight controls?

To constitute a backup system for the primary flight controls

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

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

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

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

In direction of rudder deflection

It moves up

It moves down

Depends on CG position

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?

The trim tab moves down, the elevator moves up

The trim tab moves down, the elevator moves down

The trim tab moves up, the elevator moves down

The trim tab moves up, the elevator moves up

What is the purpose of the tank ventilation?

To prevent fuel spillage during refueling on the filler plug

To prevent underpressure caused by fuel consumption

To prevent water disposal during parking

To distribute the fuel from one tank segment to the other during flight

Where does the condensation water converge in the tank?

At the lowest position

It is mixed with the fuel

Near the cap of the tank

It floats on the fuel

What is the unit for electrical power?

Volt

Ohm

Watt

Ampere

What must be considered during refueling?

Apply ground wires, turn on the main switch and magneto ignition

Refuel through a soaked rag and keep a fire extinguisher available

Check the fuel content of the tank with a torch and remove fire protection

No open fires, obey smoking ban and apply ground cables

What is the reason for static dischargers on aircraft?

To eliminate electrical interferences during intensive radio traffic

To discharge static charging during flight

To ensure grounding during refueling

To improve the quality of radio transmission in high altitudes

An aeroplane's current supply is carried out by the: 1. Battery 2. Generator 3. Relay 4. Circuit breaker

1 and 4

2 and 3

1 and 2

3 and 4

What devices can be affected by a failure of the electrical system?

Radio equipment, navigation equipment and gyros

Airspeed indicator, altimeter and artificial horizon

Fuel quantity indication, radio equipment and altimeter

Radio equipment, navigation equipment and magnetic compass

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

2 plate Wankel

4 Cylinder; 4 stroke

2 Cylinder Diesel

4 Cylinder 2 stroke

Which part of the cycle of a four-stroke Otto engine can be seen in the attachment?

Fourth stroke - exhaust

Second stroke - compression

First stroke - induction

Third stroke - power

Which part of the cycle of a four-stroke Otto engine can be seen in the attachment?

Fourth stroke - exhaust

First stroke - induction

Third stroke - power

Second stroke - compression

Which colour does Avgas 100 LL have?

Red

Green

Yellow

Blue

What is the secondary effect of switching on the carburettor heating on fixed propeller engines during engine run-up?

RPM increases

Angle of attack increases

RPM decreases

Angle of attack decreases

In which phase of flight must the carburettor heating be switched off although carburettor icing might be expected?

During climb

During taxi

During cruise

During take-off

What is the task of cooling fins on air-cooled engine cylinders?

Increasing the airflow thus improving cooling of cylinder parts

Cooling of the cylinder surrounding airflow and forwarding to hotter engine parts

Quick heat transfer to the surrounding air flow by expanding the surface

Leading the airflow to parts designated to be cooled

What is the purpose of engine oil in piston engine?

For noise reduction and bearing of the propeller shaft.

Cooling, lubrication and increasing engine performance.

Cooling, lubrication of the engine and disposal of fine abrasion.

Cooling of the engine and lubrication of propeller shaft.

What happens during oil filter clogging?

The oil circulation will end after 15 minutes so that a proper engine run will not be guaranteed

A bypass valve opens thus enabling the circulation to continue, debris will not be filtered

The oil circulation will end after 30 minutes so that a proper engine run will not be guaranteed

A bypass valve opens thus enabling the circulation to continue, debris will be filtered by an alternate filter

What is the likely cause if the engine runs unusually rough while checking the magnetos?

Ignition switch is faulty

Sparking plug is defective

Starter is faulty

Short circuit on the ground cable

How do you call fuel mixtures with a high amount of fuel?

Empty

Full

Lean

Rich

PPL (80) Aircraft General Knowledge

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