Engine Performance 1 Chapter 65-1

Engine Performance 1 Chapter 65-1

University

10 Qs

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Engine Performance 1 Chapter 65-1

Engine Performance 1 Chapter 65-1

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Created by

Lincoln Buell

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diesels do not need a throttle plate to control engine rpm, because fuel delivery is what controls engine rpm

True

False

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The intake system ensures that _______ air is supplied to the engine, which is then mixed with fuel and burned in the combustionchamber, creating the thermal expansion that pushes the pistons down the cylinder.

Clean

Dry

Both A and B

Neither A nor B

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The throttle plate on a diesel engine is designed to close off airflow to the engine to more easily introduce exhaust gases into the intakemanifold, thus _______ cylinder temperatures and _______ oxides of nitrogen.

Raising; increasing

Raising; reducing

Lowering; reducing

Lowering; increasing

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The air cleaner is usually mounted away from the engine to obtain cleaner, warmer air.

True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In general, a _______ intake manifold produces high torque at _______ engine rpm because of the increased amount of time between the air pulses due to the inertia of the long column of air.

Short; higher

Long; lower

Short; lower

Long; higher

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The use of plastic has enabled more efficient airflow into the engine due to smoother surfaces of the manifold and has allowed for easier shaping of the manifold, creating better airflow characteristics.

True

False

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tech A says that shorter intake manifolds produce higher torque at lower rpm. Tech B says that longer intake manifolds produce higher torque at high engine speeds. Who is correct?

Tech A

Tech B

Both A and B

Neither A nor B

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