Diagnosing Engine Mechanical Problems



1.	Running compression tests should be conducted on diesel engines.
	A.	True.
	B.	False.

2.	When testing a vehicle with a catalytic converter, what steps may be taken to avoid overheating the converter?
	A.	Minimize the time a cylinder is disabled.
	B.	Allow the converter to cool between tests.
	C.	Both a and b.
	D.	Neither a nor b.

3.	If a coolant or oil leak occurs at the cylinder head gasket, you should:
	A.	Remove the cylinder head.
	B.	Check the head and engine block for damage.
	C.	Install a new gasket.
	D.	All of the above.

4.	Which of the following is recommended when working near a vehicle that leaks fuel?
	A.	Eliminate sparks and open flames.
	B.	Keep a fire extinguisher nearby.
	C.	Dispose of flammable-fluid-saturated shop towels appropriately.
	D.	All of the above.

5.	When conducting an oil pressure test, the pressure at idle should be 0 psi
	A.	True.
	B.	False.

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