Mechanical Engineering Mcqs — Test 68

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Question 1

The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as________________?

Question 2

Ignition quality of diesel-fuel oil is expressed by an index called__________________?

Question 3

According to Recardo’s theory, detonation occurs due to______________________?

Question 4

Injection lag is_________________?

Question 5

The knocking in diesel engines for given fuel, will be__________________?

Question 6

Carbon residue in diesel oil should not be more than___________________?

Question 7

Diesel engines have low specific fuel consumption compared to petrol engine. This statement is____________________?

Question 8

To reduce the possibility of knock in the C.I. engines, the first elements of fuel and air should have_______________?

Question 9

In order to prevent knock in the S.I. engines, the charge away from the spark plug should have___________________?

Question 10

The pistons are usually given a coating such as tin plating in order to________________?