Explore topic-wise MCQs in Ic Engine.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.

1.

Diatomic oxygen is highly reactive and initiates a number of different reactions.

A. True
B. False
Answer» C.
2.

Ozone is harmful to plants and trees and causes very heavy crop losses each year.

A. True
B. False
Answer» B. False
3.

More than 90 to 95% of carbon particles originally generated within an engine are thus converted to CO2 and never comes out as carbon particles.

A. True
B. False
Answer» B. False
4.

The exhaust of CI engines does not contain solid carbon soot particles that are generated in the fuel-rich zones within the cylinder during combustion.

A. True
B. False
Answer» C.
5.

DIATOMIC_OXYGEN_IS_HIGHLY_REACTIVE_AND_INITIATES_A_NUMBER_OF_DIFFERENT_REACTIONS.?$

A. True
B. False
Answer» C.
6.

Ozone is harmful to plants and trees and causes very heavy crop losses each year?

A. True
B. False
Answer» B. False
7.

Upper level ozone is harmful to lungs and other biological tissue.

A. True
B. False
Answer» C.
8.

More than 90 to 95% of carbon particles originally generated within an engine are thus converted to CO2 and never comes out as carbon particles.

A. True
B. False
Answer» B. False
9.

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

A. 600
B. 5000
C. 6000
D. 8000
Answer» C. 6000
10.

The exhaust of CI engines does not contains solid carbon soot particles that are generated in the fuel-rich zones within the cylinder during combustion.

A. True
B. False
Answer» C.
11.

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
Answer» B. False
12.

The intake air-fuel mixture is used to push exhaust residual out of the open exhaust port called scavenging.

A. True
B. False
Answer» B. False
13.

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

A. True
B. False
Answer» C.
14.

The hydrocarbons appear due to flame quenching near the metallic walls.

A. False
B. True
Answer» C.