Technician A says that Monotherm pistons are manufactured with a much tighter fit to the liner bore than aluminum trunk pistons. Technician B says that Monotherm pistons do not require an oil spray jet aimed at the underside of the piston. 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

Monotherm pistons are made of steel, which expands less than aluminum, allowing for a tighter fit in the liner bore compared to aluminum trunk pistons. However, they still require oil spray jets for cooling.

Technician a Says That Monotherm Pistons Are Manufactured with a Much