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.

The vegetable oils are used as lubricants in the automobiles.

A. True
B. False
Answer» C.
Discussion
2.

Which of the following oils has the highest viscosity?

A. SAE 20
B. SAE 10
C. SAE 50
D. SAE 45
Answer» D. SAE 45
Discussion
3.

Which of the following of oils is multi-grade oil?

A. SAE 10W 30
B. SAE 25W
C. SAE 10
D. SAE 20W
Answer» B. SAE 25W
Discussion
4.

Which of the following viscosity indices shows the larger changes in viscosity with temperature?

A. 50
B. 100
C. 45
D. 10
Answer» E.
Discussion
5.

Which of the following is the most important property of the lubricant?

A. Density
B. Thermal conductivity
C. Viscosity
D. Melting point
Answer» D. Melting point
Discussion
6.

Why are the detergents used as oil additives?

A. To increase fire point
B. To prevent foaming
C. To prevent sludge formation
D. To reduce viscosity
Answer» D. To reduce viscosity
Discussion
7.

What is the need for crankcase ventilation?

A. To cool cylinder
B. To cool crankcase
C. To cool piston
D. To remove blow-by
Answer» E.
Discussion
8.

The pressure inside the lubrication system is controlled by ______

A. Oil pump
B. Oil filter
C. Relief valve
D. Supply voltage
Answer» D. Supply voltage
Discussion
9.

In most automobiles, which lubrication system is commonly used?

A. Splash system
B. Pressure system
C. Petrol system
D. Gravity system
Answer» C. Petrol system
Discussion
10.

Which type of lubrication system is used in two-stroke engine?

A. Mist lubrication system
B. Wet sump lubrication system
C. Dry sump lubrication system
D. Splash lubrication system
Answer» B. Wet sump lubrication system
Discussion