Question 1

Which of the following statements concerning superchargers is NOT correct?

Accepted Answer

A)   Superchargers must overcome inertia and spin up to speed as the flow of exhaust gas increases
B)   Superchargers do not require a waste gate to limit boost
C)   A bypass is designed into the system to allow the supercharger to idle along when extra power is not needed
D)   Superchargers improve horsepower and torqueE) A) and B)
F) A) and C)

Question 2

The ____________________ cools the turbocharged air before it reaches the combustion chamber.

Accepted Answer

The answer of The ____________________ cools the turbocharged air before...

Question 3

What is a vacuum?

Accepted Answer

The term vacuum refers to any ...

Question 4

Technician A says a vacuum leak will cause an engine to run richer than normal. Technician B says a vacuum leak can cause an engine to detonate. Who is correct?

Accepted Answer

A)   A only
B)   B only
C)   both A and B
D)   neither A nor BE) B) and C)
F) None of the above

Question 5

How is vacuum created inside the engine?

Accepted Answer

Engine vacuum is created by the downward...

Question 6

Which of the following is NOT an engine exhaust pollutant that is changed by the catalytic converter?

Accepted Answer

A)   CO
B)   HC
C)   CO2
D)   NOXE) A) and C)
F) C) and D)

Question 7

Variable intake manifolds are being discussed. Technician A says an intake manifold tuning (IMT)  system uses a butterfly valve to divide the plenum into two small chambers at low speeds. At high engine speeds, the butterfly valve opens to form one large plenum chamber. Technician B says the intake manifold runner control (IMRC)  system changes the path of air between long and short runners or between small-diameter and large-diameter runners according to engine speed. Who is correct?

Accepted Answer

A)   A only
B)   B only
C)   both A and B
D)   neither A nor BE) A) and B)
F) B) and C)

Question 8

Engine vacuum may be used to operate the ______.

Accepted Answer

A)   power brakes
B)   cruise control
C)   air-conditioning system
D)   all answers are correctE) All of the above
F) None of the above

Question 9

Technician A says the engine should idle for 20 to 120 seconds after a hard run to allow the turbocharger shaft to cool. Technician B says if the vehicle has not been driven for a few days, start the engine up and run it at 2,000 to 2,500 rpm to flush the old oil out of the turbocharger bearings and oil lines. Who is correct?

Accepted Answer

A)   A only
B)   B only
C)   both A and B
D)   neither A nor BE) A) and B)
F) All of the above

Question 10

The butterfly valve in IMRC systems is controlled by an electric motor or __________________ actuator.

Accepted Answer

The answer of The butterfly valve in IMRC systems is...

Question 11

Generally, an engine designed for maximum torque and horsepower at high speeds has longer runners than one that provides high torque at lower speeds.

Accepted Answer

A) True 
 B)False

Question 12

If a catalytic converter in a late model vehicle is not working properly, the ______________________ will turn on.

Accepted Answer

MIL
malfun...

Question 13

In an intake manifold for a PFI engine, the __________________ serves as a reservoir for the air and is used to distribute the intake charge evenly to the runners and intake ports.

Accepted Answer

The answer of In an intake manifold for a PFI...

Question 14

What are the three functions of the exhaust system?

Accepted Answer

A vehicle's exhaust system car...

Question 15

Technician A says the air filter is designed to prevent engine fires in the event of a backfire. Technician B says the air filter assembly is also designed to help reduce the noise caused by the movement of intake air. Who is correct?

Accepted Answer

A)   A only
B)   B only
C)   both A and B
D)   neither A nor BE) C) and D)
F) B) and D)

Question 16

The higher the altitude, the lower the atmospheric pressure.

Accepted Answer

A) True 
 B)False

Question 17

The number-one cause of turbocharger failure is __________________.

Accepted Answer

The answer of The number-one cause of turbocharger failure is...

Question 18

Atmospheric pressure appears as ____________________ on most pressure gauges.

Accepted Answer

The answer of Atmospheric pressure appears as ____________________ on most...

Question 19

Which of the following is NOT a characteristic of a turbocharger?

Accepted Answer

A)   Is used to increase engine power by compressing the air that goes into the combustion chambers
B)   Is usually located close to the exhaust manifold
C)   Utilizes an exhaust-driven turbine wheel
D)   Requires a mechanical connection between the engine and the pressurizing pump to compress the intake air and fuel mixtureE) C) and D)
F) B) and C)

Question 20

An engine in good condition will produce a steady, constant vacuum reading above 15 inches at a warm idle.

Accepted Answer

A) True 
 B)False

Exam 32: Intake and Exhaust Systems

The higher the altitude, the lower the atmospheric pressure.

Correct Answer
verified

The butterfly valve in IMRC systems is controlled by an electric motor or __________________ actuator.

Correct Answer
verified

How is vacuum created inside the engine?

Correct Answer
verified
Engine vacuum is created by the downward...
View Answer

What is a vacuum?

Correct Answer
verified
The term vacuum refers to any ...
View Answer

Atmospheric pressure appears as ____________________ on most pressure gauges.

Correct Answer
verified

What are the three functions of the exhaust system?

Correct Answer
verified
A vehicle's exhaust system car...
View Answer

Technician A says a vacuum leak will cause an engine to run richer than normal. Technician B says a vacuum leak can cause an engine to detonate. Who is correct?

Correct Answer
verified

The number-one cause of turbocharger failure is __________________.

Correct Answer
verified

If a catalytic converter in a late model vehicle is not working properly, the ______________________ will turn on.

Correct Answer
verified
MIL
malfun...
View Answer

Which of the following is NOT a characteristic of a turbocharger?

Correct Answer
verified

In an intake manifold for a PFI engine, the __________________ serves as a reservoir for the air and is used to distribute the intake charge evenly to the runners and intake ports.

Correct Answer
verified

The ____________________ cools the turbocharged air before it reaches the combustion chamber.

Correct Answer
verified

Engine vacuum may be used to operate the ______.

Correct Answer
verified

An engine in good condition will produce a steady, constant vacuum reading above 15 inches at a warm idle.

Correct Answer
verified

Generally, an engine designed for maximum torque and horsepower at high speeds has longer runners than one that provides high torque at lower speeds.

Correct Answer
verified

Which of the following statements concerning superchargers is NOT correct?

Correct Answer
verified

Correct Answer
verified

Technician A says the air filter is designed to prevent engine fires in the event of a backfire. Technician B says the air filter assembly is also designed to help reduce the noise caused by the movement of intake air. Who is correct?

Correct Answer
verified

Correct Answer
verified

Which of the following is NOT an engine exhaust pollutant that is changed by the catalytic converter?

Correct Answer
verified

Exam 32: Intake and Exhaust Systems

The higher the altitude, the lower the atmospheric pressure.

Correct AnswerverifiedShow Answer

The butterfly valve in IMRC systems is controlled by an electric motor or __________________ actuator.

Correct AnswerverifiedShow Answer

How is vacuum created inside the engine?

Correct AnswerverifiedEngine vacuum is created by the downward...View AnswerShow Answer

What is a vacuum?

Correct AnswerverifiedThe term vacuum refers to any ...View AnswerShow Answer

Atmospheric pressure appears as ____________________ on most pressure gauges.

Correct AnswerverifiedShow Answer

What are the three functions of the exhaust system?

Correct AnswerverifiedA vehicle's exhaust system car...View AnswerShow Answer

Technician A says a vacuum leak will cause an engine to run richer than normal. Technician B says a vacuum leak can cause an engine to detonate. Who is correct?

Correct AnswerverifiedShow Answer

The number-one cause of turbocharger failure is __________________.

Correct AnswerverifiedShow Answer

If a catalytic converter in a late model vehicle is not working properly, the ______________________ will turn on.

Correct AnswerverifiedMILmalfun...View AnswerShow Answer

Which of the following is NOT a characteristic of a turbocharger?

Correct AnswerverifiedShow Answer

In an intake manifold for a PFI engine, the __________________ serves as a reservoir for the air and is used to distribute the intake charge evenly to the runners and intake ports.

Correct AnswerverifiedShow Answer

The ____________________ cools the turbocharged air before it reaches the combustion chamber.

Correct AnswerverifiedShow Answer

Engine vacuum may be used to operate the ______.

Correct AnswerverifiedShow Answer

An engine in good condition will produce a steady, constant vacuum reading above 15 inches at a warm idle.

Correct AnswerverifiedShow Answer

Generally, an engine designed for maximum torque and horsepower at high speeds has longer runners than one that provides high torque at lower speeds.

Correct AnswerverifiedShow Answer

Which of the following statements concerning superchargers is NOT correct?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Technician A says the air filter is designed to prevent engine fires in the event of a backfire. Technician B says the air filter assembly is also designed to help reduce the noise caused by the movement of intake air. Who is correct?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following is NOT an engine exhaust pollutant that is changed by the catalytic converter?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Engine vacuum is created by the downward...
View Answer

Correct Answer
verified
The term vacuum refers to any ...
View Answer

Correct Answer
verified

Correct Answer
verified
A vehicle's exhaust system car...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
MIL
malfun...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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