Explore topic-wise MCQs in Automobile Engineering.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Automobile Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

How is the molecular structure of the straight-run gasoline changed?

A. By cracking
B. By reforming
C. By refining
D. By boiling
Answer» C. By refining
Discussion
2.

What are the characteristics of good CI engine fuel?

A. High octane number
B. Very high cetane number
C. Short ignition lag
D. Short ignition lag, high cetane number, and high octane number
Answer» D. Short ignition lag, high cetane number, and high octane number
Discussion
3.

How is paraffin represented by?

A. CnHn
B. CnH2n
C. CnH2n+2
D. CnH2n-6
Answer» D. CnH2n-6
Discussion
4.

By which quantity is ignition quality of diesel fuel indicated?

A. Fire point
B. Flashpoint
C. Cetane point
D. Octane point
Answer» D. Octane point
Discussion
5.

What is octane number of iso-octane?

A. 0
B. 30
C. 60
D. 100
Answer» E.
Discussion
6.

Which of the following is the advantage of the gaseous fuel?

A. It can be stored easily
B. It can mix easily with air
C. It can displace more air from the engine
D. It can be stored, get mixed with air and can displace more air from the engine.
Answer» C. It can displace more air from the engine
Discussion
7.

Which molecular structure does the paraffin possess?

A. Chain saturated
B. Chain unsaturated
C. Ring saturated
D. Ring unsaturated
Answer» B. Chain unsaturated
Discussion
8.

For CI engines which fuels are preferred?

A. Napthenes
B. Paraffin
C. Olefins
D. Aromatics
Answer» C. Olefins
Discussion
9.

For SI engines which fuels are preferred?

A. Aromatics
B. Paraffin
C. Olefins
D. Napthenes
Answer» B. Paraffin
Discussion
10.

How are hydrocarbons decomposed into smaller hydrocarbons?

A. By reforming
B. By refining
C. By cracking
D. By polymerization
Answer» D. By polymerization
Discussion