Hemispherical combustion chambers are being discussed. Technician A says the flame path from the spark plug to the piston head is long, which provides efficient burning. Technician B says the cross-flow arrangement of the inlet and exhaust valves allows for a free flow of gases in and out of the chamber. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct because the cross-flow arrangement in hemispherical combustion chambers allows for efficient gas exchange. Technician A is incorrect because a shorter flame path is generally more efficient for combustion.

Hemispherical Combustion Chambers Are Being Discussed