Exam 9: Automotive Engine Designs and Diagnosis

Describe the process of combustion.

The volume of the combustion chamber when the piston is at BDC divided by the volume of the chamber when the piston is at TDC is called _____.

The reciprocating movement of the piston is converted into rotary motion by the _____.

____________________ is the amount of power that an engine produces when tested on a dynamometer at a specific speed at full throttle.

On a 4-cylinder engine that has a firing order of 1342, if number 1 cylinder is on the exhaust stroke, what stroke is number 3 cylinder on?

Which one of the following is NOT a stroke of the four-stroke cycle?

As seen from the flywheel end, nearly all engines rotate clockwise.

What type of ICE engine listed below is commonly found in a hybrid vehicle?

Engine oil pressure testing is being discussed. Technician A says that oil pressure should be tested with the engine cold. Technician B says oil with viscosity that is too high may cause lower than specified pressure. Who is correct?

All transverse engine layouts are associated with front-wheel drive.

The rotary engine is also known as a(n)____________________ engine.

Both valves are closed on the _____ strokes.

Technician A says the engine displacement can be found on the engine ID tag. Technician B says the date the engine was assembled can be found in the casting numbers on the cylinder block. Who is correct?

The largest part of the engine is the ____________________.

Describe rod bearing noise.

Technician A says weak valve springs can be detected with a vacuum test. Technician B says a restricted exhaust can be detected with a vacuum test. Who is correct?

The component connected to the crankshaft that stores some of the engine's power is the _____.

Technician A says engine displacement is commonly measured in cubic millimeters. Technician B says it is commonly measured in cubic inches. Who is correct?

The stroke of an engine is _____ that of a crankshaft throw.

A(n)____________________ vehicle is one that uses an electric motor and a gasoline engine to move the vehicle.