The volumetric efficiency of an engine depends upon-

Take off power is

One disadvantage of a carburettor is-

if an engine is flooded it may be started by-

The octane rating a fuel is a measure of-

If an engine running with the mixture leaned to peak EGT, is richened to over rich-

The pressure exerted on a piston during the power stroke increases as the mass of charge induced-

As the throttle is moved towards full throttle position-

The best action to take at the onset of detonation in an engine is-

the onset of detonation in an engine is indicated by-

For a take-off under very high density altitude conditions-

An engine with a combustion chamber of 9 cubic inches capacity and a swept volume of 45 cubic inches has a compression ratio of-

How many degrees of crankshaft rotation are required to fire all cylinders on a in-line engine using the 4- stroke engine-

The reading of a manifold pressure gauge on an inoperative engine at 2000 ft AMSL would be approximately (assume ISA)

Friction horsepower is-

If an engine with the mixture leaned tp peak EGT, is richened to full rich and running rough

An engine is running with the mixture fully rich. Progressive leaning to peak EGT will produce -

The application of carburettor heat when ice has formed in the carburettor will be accompanied by-

A decent to MSL from high altitude is made with no adjustment to mixture which was peak EGT-

Vaporising of fuel in the lines (vapour locking), can be caused by -

If an engine begins to run roughly because of vaporisation of the fuel during flight, the pilot should -

Cabarita refrigeration ice is most likely to form -

A turbocharger with fixed waste gate allows for -

during take off in aircraft with a supercharged engine -

Duel ignition on an aircraft engine provides an additional safety factor during flight. it is also necessary to provide -

An aircraft electrical system operates at approximately consistent

An aircraft with a flat battery is hand started -

Circuit breakers and fuses protect an electrical circuit from -

A micro switch is

See photo for question

The pilot of a turbocharged aircraft notices that the manifold pressure indication shows abnormal fluctuations during a long climb . Select the most likely cause

the purpose of a supercharger or turbo charger is to

Vents are required in the battery compartment to ensure that

The capacity of a battery is measured in

A leak in the induction system of a turbo charged engine with automatically boost control will become worse

The purpose of an impulse coupling on the magneto is to-

If throttle and mixture leavers remained unchanged during a long climb from sea level in a non-turbo charged engine aircraft, power available will decrease because

On application of carburettor heat when no ice is present the manifold pressure will

Operating an engine at high-power with the mixture very lean can cause-

The position of the valves during the intake of an actual four stroke cycle engine is

If an alternator failure occurs during flight, indications to the pilot would be

If the electrical load is too high, but the alternator cannot supply the demands of the system indications on the centre zero ammeter would be-

if a magneto Earth lead becomes disconnected or breaks

solenoids allow a heavy circuit to be turned on or off by the use of

A turbocharged engine with automatic boost control is operating below critical altitude. A leak developing upstream of the turbo in the exhaust system will result in.

An aircraft is equipped with voltmeter. Before start up with a master switch on the voltimeter read 24 volts. The reading that would indicate normal operation during cruise would be

Prior to an alternator failure in flight the left-hand zero ammetrer was reading 12 amps. If no electrical load were turned on a 20 amp hour battery could supply the system for approximately-

during the compression and power strokes of a theoretical 4 stroke cycle, on the horizontal opposed engine-

To find the firing interval of a four stroke engine

When the inlet valve is closed after BDC in a four stroke engine the maximum quantity of fuel/air charge entering the cylinder is insured. This modification to the valve timing is known as

mixture is progressively leaned from full rich condition to engine misfire the engine will achieve

if mixture is currently set at peak EGT, moving, the mixture control to fully rich, will cause economy, (i.e. miles per gallon) to-

an increase in altitude with no adjustment in the mixture or throttle control position will produce

The use of a lower grade of fuel than recommended

fuel tank vents should be inspected before flight because

use of higher grade fuel than recommended may cause

The fuel flow gauge on a fuel injected aircraft fitted with a pressure transducer fuel metering system indicate an abnormally high flow rate with normal power and mixture settings. This abnormally high flow rate indicate-

engine fire bottles are discharged

when wire loop fire detection systems test switch is depressed, what is being tested

The most common extinguishing agent use by high rate discharge extinguishing systems is-

High rate discharge fire extinguishing systems, discharged the extinguishing agent -

The function of a rectifier in an electrical system is to

The function of an inverter in an electrical system is to

Your aircraft is equipped with a voltmeter, and you know that before start up the master switch on instrument rate 24 V. After an alternator failure, in-flight, the instrument would be expected to read.

The primary purpose of circuit breakers as used in aircraft electrical systems this to

it is advisable to check magnetos at pre-flight to make sure both are operating and capable of being shut off. This check should be made.

An impulse magneto coupling

in the event of a failure of a generator or alternator of an aircraft’s electrical system there will be an ammater indication and

A pilot should avoid prolonged operation of an electrical starter motor as this can cause

The magneto ground wire is connected to

a dual ignition system on light aircraft engines

With the majority of opposed engines, the right-hand magneto

The generator fails just after takeoff in an aircraft which has a 48 amp-hour, 24 V battery. Just prior to failure, the centre index ammator was reading a charge of 5 Amps. Without switching off any loads the approximate maximum interval before the battery goes flat .

An impulse coupling on a magneto

On a four stroke engine, the ignition is timed so that the spark occurs

when one magneto is switched off in the dual ignition system

if an engine is allowed to operate too long at idling speed

A condenser is appropriate in the primary circuit of a magneto to

shielding, as employed in the aircraft electrical systems, this used for

A reading of zero on a centre zero ammeter indicates

A voltage regulator controls alternator output bye

and aircraft fitted with a volt meter, which weighs 24 V prior to start. During course, normal operation of the electrical system would be indicated with the voltmeter showing.

during flight centre, zero ammeter in an aircraft is deflected to the left of Centre (a slight discharge )this indicates

The left-hand zero ammeter indicates zero during the flight

in the takeoff manifold pressure exceeds rated boost in turbo charged engine

A left hand zero ammeter shows are consistent high output when

in a turbocharged engine, with an increase in throttle, after starting with the waste gate jammed shut, manifold pressure will

In an engine fitted with an automatic waste gate, oil pressure is used to

A turbocharged piston engine aircraft fitted with a manual pilot operated wastegate is climbing at full throttle with the wastegate partially open. The current action to maintain that consistent manifold pressure, as long as possible on climb to the cruise altitude would be

question 49 - a turbocharged aircraft fitted with an automatic wastegate controlled by engine oil pressure which suffers a failure cutting oil pressure to waste gate control. the effect on engine operation is

when conducting a magneto check during the run up in an aircraft with separate switches for each magneto, there is no change in RPM when the right magneto is switched off and then on again, and the engine fails when the left magneto is switched off. A fault which would cause this is

Wire fire detection systems are designed to detect fires

Smoke detectors are used to detect possible fires in

a cause of fuel icing in turbine engine aircraft without fuel heaters may br

As mixture is progressively leaned from full rich condition, the engine will experience

if mixture is correctly set to peak EGT, moving, the mixture control to fully rich with throttle setting unchanged will cause power output to

An unexpected high MP resulting from a advance in a turbo charged engine is most likely due to

lead acid type batteries need to be located in a ventilated battery box within the aircraft

The prime purpose of a turbo charger is

an aircraft is equipped with a conventional centre zero type ammeter such as ammeter displays