SI 1191A - Cylinder Compression

SI 1191A - Cylinder Compression

University

10 Qs

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SI 1191A - Cylinder Compression

SI 1191A - Cylinder Compression

Assessment

Quiz

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University

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Ricardo Ccoyure

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the differential compression test?

To measure oil pressure

To measure cylinder static leak rate

To check magneto timing

To balance the propeller

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what piston position should the differential compression test be performed?

Bottom dead center of the power stroke

Top dead center of the compression stroke

Middle of the intake stroke

Bottom dead center of the exhaust stroke

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct air supply pressure for the test?

100 psi

60 psi

80 psi

50 psi

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the critical orifice size specified for Textron Lycoming engines?

.020 in. diameter

.040 in. diameter

.060 in. diameter

.080 in. diameter

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does air discharged from the exhaust system during the test indicate?

Intake valve leakage

Exhaust valve leakage

Piston ring leakage

Normal operation

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If all cylinder pressures are equal and above 70 psi, the engine is:

In need of overhaul

Operating satisfactorily

Unsafe to operate

Losing oil rapidly

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does air discharged from the breather or oil filler tube indicate?

Exhaust valve leakage

Intake valve leakage

Piston and ring leakage

Head gasket failure

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