Explore topic-wise MCQs in Automobile Engineering.

This section includes 8 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.

A relief valve is fitted to the main oil gallery of an engine. The purpose of this valve is to

A. Limit the maximum oil pressure
B. Open when the oil is hot
C. Maintain the supply if the gallery becomes blocked
D. Stop the oil flow to the bearings
Answer» B. Open when the oil is hot
2.

On modern four stroke engines the inlet valve opens just

A. Before TDC
B. After TDC
C. Before BDC
D. After BDC
Answer» B. After TDC
3.

On modern four stroke engines the exhaust valve opens just

A. Before TDC
B. After TDC
C. Before BDC
D. After BDC
Answer» D. After BDC
4.

The opening and closing of a valve is respectively done by

A. A cam and a spring
B. A spring and a cam
C. Gas pressure and cam
D. Cylinder vacuum and spring
Answer» B. A spring and a cam
5.

The purpose of valve clearance is to

A. Allow the valve to expand
B. Allow the sliding of valve in the guide
C. Ensure that the valve closes fully
D. Ensure that the crankshaft is free to rotate
Answer» D. Ensure that the crankshaft is free to rotate
6.

The device used to measure the clearance between the valve and tappet of an IC Engine is

A. Feeler gauge
B. Snap gauge
C. Slip gauge
D. Micrometer
Answer» B. Snap gauge
7.

In a diesel engine the fuel injection pressure is in the range

A. 100 to 170 atm
B. 60 to 70 atm
C. 30 to 40 atm
D. 20 to 25 atm
Answer» B. 60 to 70 atm
8.

In a four stroke engine each cylinder has

A. One valve
B. Two valves
C. Three valves
D. Four valves
Answer» C. Three valves