Two technicians are discussing atmospheric pressure. Technician A says that atmospheric pressure can achieve work. Technician B says that the earth has sufficient natural vacuum to perform automotive work. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct. Atmospheric pressure can achieve work, such as moving piston in an engine. Technician B is incorrect because a vacuum by itself cannot perform automotive work. It can only assist in certain processes, such as aiding in the operation of power brakes.

Two Technicians Are Discussing Atmospheric Pressure