Convert a pressure of 10 psi to inches of mercury. How many inches of mercury is the pressure?
A) 100 inches of mercury B) 50 inches of mercury
C) 20 inches of mercury D) 15 inches of mercury
Question 2
Define a vacuum.
A) A vacuum is a negative pressure.
B) Vacuum is the reciprocal of pressure. For every pressure there is a reciprocal vacuum.
C) A vacuum is anti-pressure created by counterclockwise molecular rotation.
D) A vacuum is any pressure less than atmospheric pressure.