POWERPLANT PISTON 1

POWERPLANT PISTON 1

Professional Development

8 Qs

quiz-placeholder

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POWERPLANT PISTON 1

POWERPLANT PISTON 1

Assessment

Quiz

Education

Professional Development

Medium

Created by

wafi sabab

Used 1+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Regarding a normally aspirated piston engine, which of the following statements is correct?

Power output depends, amongst other things, on the mass of the mixture entering the cylinder.

Power available will increase with altitude.

High atmospheric humidity increases power.

Power available will increase with density altitude.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Refer to figure.

On the diagram showing the power output of a piston engine as a function of mixture ratio, theoretical best economy is shown at...

5

2

3

4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The formula to calculate the total displacement of a multi-cylinder piston engine is...

piston area x piston stroke.

cylinder length x cylinder diameter.

piston area x piston stroke x number of cylinders.

cylinder volume x number of cylinders.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the manifold pressure gauge of a piston engine shows an increase shortly after carburettor heat is turned on, it indicates that...

excessive heat is being used.

ice was forming in carburettor.

the mixture was too lean.

the cylinder walls are overheating.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement(s) is/are true?

I. Fuel injections of the engines can not freeze

II. Carburetor freezing often occurs at 5°C to 20°C and at higher temperatures

I is incorrect, II is correct.

I is correct, Il is incorrect.

I is correct, II is correct.

I is incorrect, II is incorrect.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The oil is stored underneath the engine, with NO external reservoir and a higher oil capacity. Which type of oil system is being described?

Wet sump.

Dry sump.

Neither system is being described.

Both systems may be being described.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The main reason for opening the cowl flaps is to control the...

oil temperature

C.H.T. (cylinder head temperature)

cabin temperature

E.G.T (exhaust gas temperature)

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An impulse magneto coupling in a piston engine...

advances ignition timing and gives a hotter spark at starting.

gives an automatic spark increase during high-speed operation.

reduces magneto speed during engine warm-up.

retards the spark during engine starting.