Air Pollution and its Control in Automobile MCQ Questions & Answers

Section 1 Section 2

11.
Which engine emits more amounts of nitrogen oxides (NO_x)?

A. Spark ignition engine

B. Compressed ignition engine

C. Two stroke engine

D. LPG engine

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12.
EGR combines with the exhaust residual left in the cylinder from the previous cycle to effectively reduce the . . . . . . . . . combustion temperature.

A. Minimum

B. Maximum

C. Unpredictable

D. None of the mentioned

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13.
When scavenging is done, some of the air and fuel mix with the exhaust gases and are expelled out of the cylinder before the exhaust port closes.

A. True

B. False

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14.
The main function of the intake manifold is that it

A. Cools the intake air to a suitable temperature

B. Promotes the mixture of air and fuel

C. Reduces intake noise

D. Distributes intake air equally to the cylinders

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15.
EGR system recirculates a smallmetered amount of the inert exhaust gas back into the intake manifold:

A. To reduce the combustion temperature and lower the formation of N₂

B. To reduce peak combustion temperature and lower the formation of NO

C. To increase peak combustion temperature and lower the formation of NO

D. To reduce the exhaust gas temperature and lower the formation of particulate matter

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16.
A single soot particle may contain up to . . . . . . . . carbon spheres.

A. 600

B. 5000

C. 6000

D. 8000

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17.
The liquid-vapour separator is located in the

A. Fuel tank

B. Carburettor

C. Canister

D. Purge valve

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18.
Why is the fumigation technique used?

A. To control HC

B. To control NO_x

D. To control CO

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19.
How do we achieve near zero emission diesel engines?

A. Combo of PCV and EGR

B. Combo of EGR and SCR

C. Combo of PCV and 3 way catalytic connection

D. Combo of DPF and EGR

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20.
Name the emission control technique when some amount of gases feed into the intake manifold of a running engine?

A. Exhaust gas recirculation

B. Positive crank case ventilation

C. Catalytic convention

D. Selective catalytic reduction

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

11. Which engine emits more amounts of nitrogen oxides (NOx)?

Answer & Solution

12. EGR combines with the exhaust residual left in the cylinder from the previous cycle to effectively reduce the . . . . . . . . . combustion temperature.

Answer & Solution

13. When scavenging is done, some of the air and fuel mix with the exhaust gases and are expelled out of the cylinder before the exhaust port closes.

Answer & Solution

14. The main function of the intake manifold is that it

Answer & Solution

15. EGR system recirculates a smallmetered amount of the inert exhaust gas back into the intake manifold:

Answer & Solution

16. A single soot particle may contain up to . . . . . . . . carbon spheres.

Answer & Solution

17. The liquid-vapour separator is located in the

Answer & Solution

18. Why is the fumigation technique used?

Answer & Solution

19. How do we achieve near zero emission diesel engines?

Answer & Solution

20. Name the emission control technique when some amount of gases feed into the intake manifold of a running engine?

Answer & Solution

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

11.
Which engine emits more amounts of nitrogen oxides (NO_x)?

12.
EGR combines with the exhaust residual left in the cylinder from the previous cycle to effectively reduce the . . . . . . . . . combustion temperature.

13.
When scavenging is done, some of the air and fuel mix with the exhaust gases and are expelled out of the cylinder before the exhaust port closes.

14.
The main function of the intake manifold is that it

15.
EGR system recirculates a smallmetered amount of the inert exhaust gas back into the intake manifold:

16.
A single soot particle may contain up to . . . . . . . . carbon spheres.

17.
The liquid-vapour separator is located in the

18.
Why is the fumigation technique used?

19.
How do we achieve near zero emission diesel engines?

20.
Name the emission control technique when some amount of gases feed into the intake manifold of a running engine?