Question

Years ago diesel engines were started with small engines called ________

(a) mini engines

(b) runty engines

(c) pup engines

(d) puny engines

The question was asked in a job interview.

This interesting question is from Engine Starting Methods topic in section Diesel Engine Plant of Energy Engineering

Answer 1

Correct choice is (c) pup engines

The explanation is: Years ago diesel engines were started with the small engines called pup engines. And another way used to start a diesel engine was by gasoline and switch it over to diesel fuel. A 12v electrical system became very popular and later on they were used.