The firing order in case of four cylinder inline engines is usually ________
(a) 1-2-4-3
(b) 1-3-4-2
(c) 1-4-3-2
(d) Either 1-3-4-2 or 1-4-3-2
This question was addressed to me in an online quiz.
The query is from Energy Cycle in chapter Internal Combustion Engines of Automobile Engineering