Air Pollution and its Control in Automobile MCQ Questions & Answers

Section 1 Section 2

1.
H₂ emissions occur under . . . . . . . . operating conditions.

A. Rich

B. Lean

C. Constant

D. None of the mentioned

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2.
What does the blue smoke in diesel engine indicate?

A. Unburnt oil

B. HC

C. NO_x

D. CO

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3.
The electronic control unit outputs a signal

A. Directly to the throttle valve control motor

B. To the accelerator pedal position sensor

C. To the driver unit

D. To the throttle position sensor

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4.
Three-way catalytic converters reduce the emission of CO, HC, and soot.

A. True

B. False

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5.
The primary condition that results in the emission of CO in large quantities is

A. Insufficient air during combustion

B. Lean air-fuel ratio during engine operation

C. Low temperature combustion

D. High temperature combustion

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6.
What is the acronym for DPF in exhaust emission system?

A. Diesel pressure filter

B. Diesel primary filter

C. Diesel particulate filter

D. Direct particulate filter

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7.
. . . . . . . . is the principal ingredient used in commercial catalysts to remove NO.

A. Aluminium

B. Rhodium

C. Platinum

D. None of the above

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8.
Which pollutant is released more from diesel engine during weak compression?

A. CO

B. Particulate matter

C. HC

D. NO_x

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9.
The function of the throttle valve control motor is to

A. Open and close the throttle valve in the throttle body

B. Assists the throttle cable in controlling throttle opening

C. Sends a signal to the ECU indicating fuel consumption

D. Signals the driver unit when the throttle valve is opening and closing

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10.
The blowby HC emissions are about 30% of the total HC emission from the engine.

A. True

B. False

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Air Pollution and its Control in Automobile MCQ Questions & Answers | Automobile Engineering

1. H2 emissions occur under . . . . . . . . operating conditions.

Answer & Solution

2. What does the blue smoke in diesel engine indicate?

Answer & Solution

3. The electronic control unit outputs a signal

Answer & Solution

4. Three-way catalytic converters reduce the emission of CO, HC, and soot.

Answer & Solution

5. The primary condition that results in the emission of CO in large quantities is

Answer & Solution

6. What is the acronym for DPF in exhaust emission system?

Answer & Solution

7. . . . . . . . . is the principal ingredient used in commercial catalysts to remove NO.

Answer & Solution

8. Which pollutant is released more from diesel engine during weak compression?

Answer & Solution

9. The function of the throttle valve control motor is to

Answer & Solution

10. The blowby HC emissions are about 30% of the total HC emission from the engine.

Answer & Solution

Read More Section(Air Pollution and its Control in Automobile)

1.
H₂ emissions occur under . . . . . . . . operating conditions.

2.
What does the blue smoke in diesel engine indicate?

3.
The electronic control unit outputs a signal

4.
Three-way catalytic converters reduce the emission of CO, HC, and soot.

5.
The primary condition that results in the emission of CO in large quantities is

6.
What is the acronym for DPF in exhaust emission system?

7.
. . . . . . . . is the principal ingredient used in commercial catalysts to remove NO.

8.
Which pollutant is released more from diesel engine during weak compression?

9.
The function of the throttle valve control motor is to

10.
The blowby HC emissions are about 30% of the total HC emission from the engine.