The number of spark plugs needed in a diesel engine is:

(A) 2
(B) 3
(C) 0
(D) 4

Answer: (C) 0

Q. What is the name of heating device used to aid starting diesel engines?
(A) Glow plug
(B) Spark plug
(C) Thermostat plug
(D) None of these

Answer: (A) Glow plug

Q. The diesel engine also known as a compression-ignition (CI) engine is named after:
(A) Casey Diesel
(B) Rudolf Diesel
(C) Randall Diesel
(D) None of these

Answer: (B) Rudolf Diesel