Mechanical Engineering - Automobile Engineering

16. 

The self ignition temperature of Diesel as compared to petrol is

A. higher
B. lower
C. same
D. depends on fuel quality

Answer: Option B

Explanation:

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17. 

With the increase of battery temperature, the specific gravity of electrolyte

A. increases
B. decreases
C. reamains the same
D. none of these

Answer: Option B

Explanation:

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18. 

The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as

A. supercharging
B. auto-ignition
C. scavenging
D. detonation

Answer: Option A

Explanation:

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19. 

In aluminium cylinder blocks, the cylinder liners are made of

A. aluminium
B. ceramic
C. brass
D. cast iron

Answer: Option D

Explanation:

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20. 

The purpose of a balancer shaft is to

A. balance the timing in the movement of the two groups of pistons
B. increase inertia force of the rotating crankshaft
C. reduce vibrations caused by the crankshaft rotation
D. adjust the timing of the intake and exhaust valve openings

Answer: Option C

Explanation:

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