Question

The ignition timing is affected by _____________

(a) combustion chamber design

(b) throttle opening

(c) engine temperature

(d) all of the mentioned

This question was addressed to me in an interview.

This intriguing question comes from Ignition Timing and Engine Parameters in chapter Ignition of IC Engine

Answer 1

The correct option is (d) all of the mentioned

Explanation: The ignition timing is affected by

i) compression ratio

ii) engine speed

iii) mixture strength

iv) combustion chamber design

v) throttle opening

vi) engine temperature

vii) type of fuel.