Technician A says that a pre-2010 Cummins ISX uses a dual OHC design. Technician B says that a post-2010 Cummins ISX uses a single OHC design. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

The Cummins ISX engine underwent significant changes in its design over the years. Pre-2010 models of the Cummins ISX indeed use a dual overhead camshaft (OHC) design, which was primarily for operating the fuel injectors and the valves. Post-2010 models transitioned to a single overhead camshaft design, which was part of Cummins' efforts to simplify the engine and improve its efficiency and emissions. Therefore, both Technician A and Technician B are correct in their statements.

Technician a Says That a Pre-2010 Cummins ISX Uses a Dual