Ignition System MCQs

Question 1

The lowest speed of engine at which the engine runs smoothly is called . . . . . . . .

Accepted Answer

Idling speed

Answer

At least speed

Answer

Threshold speed

Answer

Minimum speed

Question 2

Which of the following factors spark creating voltage does not depend on?

Accepted Answer

Engine speed

Answer

The gap and polarity

Answer

Moisture

Answer

Plug insulation

Question 3

Which of the following does not affect overheating?

Accepted Answer

Engine speed

Answer

Weak mixture

Answer

Defective cooling system

Answer

Loose-fitting

Question 4

The main requirement of an ignition system is that the

Accepted Answer

All of the above

Answer

Spark at the plug electrode must be regular and timed with respect to the cylinder piston position

Answer

Spark should be sufficiently strong so as to start ignition of the charge

Answer

System should function efficiently at the maximum and minimum speeds of the engine

Question 5

Ignition delay does not depend upon the type of the fuel used in the engine.

Accepted Answer

False

Answer

True

Question 6

Which among the following is not a requirement of a spark plug?

Accepted Answer

Contacts must close without bounce

Answer

Very high resistance to current leakage

Answer

Resistance to corrosion

Answer

Gas tightness

Question 7

Due to which of the following there are carbon deposits on the spark plug?

Accepted Answer

Burning of fuel on the plug

Answer

Overheating of plug

Answer

Erosion of electrodes

Answer

Engine speed

Question 8

How many numbersof weights are present in a centrifugal advancement method?

Accepted Answer

2

Answer

3

Answer

4

Answer

1

Question 9

The most accurate way of setting the contact breaker gap is by means of

Accepted Answer

Dwell meter

Answer

Feeler gauge

Answer

Steel rule

Answer

Dial gauge