AIRCRAFT GENERAL KNOWLEDGE 5

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

Email *

Engine compression ratio is the ratio of the

1 point

Swept volume to the clearance volume.

Clearance volume to the swept volume.

Swept volume to the total volume.

Total volume to the clearance volume.

Clear selection

A 100 Ampere-Hour battery :

1 point

Will, in theory, supply 20 Amps for up to 5 hours.

Takes 100 hours to charge.

Supplies the bus-bars through a 45 Ampere circuit breaker.

Must be used in parallel with another similar battery.

Clear selection

Within one "Otto" cycle, the valves of a four stroke piston engine will each open:

1 point

Twice.

During the power stroke.

During the induction stroke.

Once.

Clear selection

The purpose of the compass deviation card fixed next to an aircraft's magnetic compass is to:

1 point

Indicate the discrepancy between the aircraft's track and magnetic north.

Indicate the discrepancy between the aircraft's track and true north.

Compensate for the influence of magnetic material carried on the person of the pilot and/or passengers.

Indicate the discrepancy between the heading shown on the compass and the actual magnetic heading.

Clear selection

The normal method for shutting down an aircraft engine is:

1 point

Moving the mixture to Idle Cut off (ICO).

Closing the throttle.

Switching the starter switch to off.

Closing the throttle and moving the mixture to ICO.

Clear selection

Why do aircraft engine ignition systems incorporate a means of spark augmentation?

1 point

Because the speed of rotation of the engine, during starting, is too low for the magneto to produce enough energy to ignite the air-fuel mixture.

Because, at high engine speeds, a fat spark is needed to extract maximum power from the air-fuel mixture.

In order to overcome the problem of spark-retard during starting.

AII of the above.

Clear selection

Aircraft maintenance carried out by a private pilot in accordance with the pilot's legal entitlement:

1 point

Is to be entered in the aircraft's log book and certified by a licensed engineer.

Is to be entered in the aircraft's log book and certified by a CAD approved inspector.

Need not be logged or recorded.

Is to be entered in the aircraft's log book and certified by the pilot who carried out the maintenance.

Clear selection

Carbon monoxide gas, which is highly toxic, may enter the aeroplane cabin in flight because of an exhaust system defect. Carbon Monoxide:

1 point

Is odourless and colourless.

May be identified by its grey colour.

Has a very distinctive taste.

May be identified by its strong smell.

Clear selection

Blade angle_____from the hub to the tip of a propeller blade in order to maintain an optimal______from hub to tip.

1 point

Increases Angle of Attack.

Increases Effective Pitch.

Decreases Angle of Attack.

Decreases Geometric Pitch.

Clear selection

A Direction Indicator:-

1 point

Suffers from apparent drift of the gyro from the fixed position in space to which it was aligned, produced by Earth rotation.

Is badly affected by acceleration in a turn.

Is not affected by drift produced from mechanical friction in the gyro gimbal bearings.

Provides a stable reference in azimuth and elevation for maintaining accurate headings and pitch attitudes.

Clear selection

As you climb altitude_____and density________and, therefore, the mixture will be___

1 point

Decreases / Increases / Decreases

Increases / Decreases / Increases

Increases / Decreases / Decreases

Clear selection

The power output of a four-stroke piston engine at sea level:

1 point

Increases as rpm increases.

Is proportional to the volume of mixture induced into the cylinder.

Is constant as rpm increases.

Increases initially, then remains constant as rpm increases.

Clear selection

As an aircraft with a variable-pitch, constant-speed propeller accelerates along the runway:

1 point

The angle of attack will remain constant and the engine R.P.M. will increase.

The linear velocity of the propeller tip will gradually decrease.

The angle of attack will decrease and the engine R.P.M. remain constant.

The blade pitch angle increases, maintaining a constant angle of attack and R.P.M.

Clear selection

If a fire occurs in a wheel and tyre assembly and immediate action is required to extinguish it, the safest extinguishant to use is:

1 point

Water acid.

Carbon dioxide

Bromotrifluoromethane (BTF).

Dry powder.

Clear selection

A tied gyro:

1 point

Does not suffer from apparent wander (drift) because of rotation of the earth about its axis.

Has its axis in the horizontal or yawing plane of the aircraft.

Cannot be used in a Direction Indicator because of the apparent wander caused by the rotation of the earth about its axis.

Has its axis in the vertical or pitching plane of the aircraft.

Clear selection

When referring to the magnetic compass, piiots must bear in mind that:

1 point

Turning errors are maximum when turning through East and West, and minimum when turning through North and South.

Turning errors are maximum when turning through North and South, and minimum when turning through East and West.

Turning errors increase, the nearer the aircraft is to the Magnetic Equator, and diminish as the aircraft approaches the Magnetic Poles.

Acceleration errors increase the nearer the aircraft is to the Magnetic Poles, and diminish as the aircraft approaches the Magnetic Equator.

Clear selection

After starting a cold engine, if the oil pressure gauge does not indicate within approximately 30 seconds:

1 point

This may be ignored, provided that the oil level was checked to be sufficient before start-up.

This may be ignored if the oil temperature is high, provided that the oil level was checked to be sufficient before start-up.

The engine must be stopped immediately.

The engine rpm should be increased and then the oil pressure re-checked.

Clear selection

Tyre creep may be identified by:

1 point

Alignment marks painted on the tyre sidewall and wheel flange.

Two yellow diametrically opposed arrows painted on the tyre sidewalls.

A tyre pressure check.

Two white blocks painted on the wheel flange.

Clear selection

The exhaust gas temperature gauge:-

1 point

Requires power from the D. C. bus-bar.

Is an engine instrument designed to protect the engine from excessive heat.

Does the same job as the cylinder head temperature gauge.

Can indicate whether the air-fuel mixture being drawn into the combustion chamber is too lean or too rich.

Clear selection

The correct working cycle of a four stroke engine is:-

1 point

Induction, compression, power, exhaust.

Exhaust power induction, compression.

Induction, power, compression, exhaust.

Exhaust, induction, power, compression.

Clear selection

Flying an aircraft with a flat battery, having started the engine using a ground source, is:

1 point

Not recommended because the battery may not charge correctly during flight.

Acceptable because the battery will be fully charged again before take-off.

Not recommended because the electrical loads will not be energised.

Acceptable because the battery is never required in flight.

Clear selection

It is important to ensure the priming pump is locked after use because:

1 point

It may cause a fuel leak, resulting in an increased fire risk.

It may cause fuel to be sucked from the fuel tank into the carburettor, causing an extremely rich mixture.

If it vibrates closed, it will cause the engine to stop.

It may cause fuel to be sucked from the fuel strainer into the inlet manifold, causing an extremely rich mixture.

Clear selection

Submit

Clear form

Forms

This content is neither created nor endorsed by Google.