Question

How is the frequency of firing in a two-stroke concerning the value of four-stroke engines?

(a) Same as the value of four-stroke

(b) Twice the value of four-stroke

(c) Has no relationship with four-stroke

(d) Four times the value of four-stroke

Answer 1

Right option is (b) Twice the value of four-stroke

The best I can explain: The frequency of firing in the two-stroke engine is twice the value for four-stroke engines. Therefore expected spark plug life in a motorcycle with two-stroke engines is only half the life in case of cars that always have four-stroke.