Technician A says that most transfer pumps used on diesel CR systems are of the external gear type. Technician B says that most transfer pumps used on diesel CR systems use a non-positive pumping principle. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither nor B

Question

Quizplus · Accepted Answer

Technician A is correct because most transfer pumps used in diesel Common Rail (CR) systems are indeed of the external gear type, which is a positive displacement pump, contrary to Technician B's statement about a non-positive pumping principle.

Technician a Says That Most Transfer Pumps Used on Diesel