Author Question: What is the pressure at the bottom of a water tank that has a cross section of 10 ft2 and is filled ... (Read 89 times)

ereecah · **on:** Jul 24, 2018

What is the pressure at the bottom of a water tank that has a cross section of 10 ft2 and is filled with water to a depth of 40 ft?

A) (40 ft 10 ft2)/0.433 = 924 psi (rounded) B) 40 ft 0.433 lb/ft = 17 psi (rounded)
C) 40 ft 0.433 lb/ft 10 ft2 = 170 psi (rounded) D) (40 ft 0.433 lb/ft)/10 ft2 = 1.7 psi (rounded)

Question 2

How does atmospheric pressure and a vacuum relate to manometers?

A) A manometer may use a vacuum and atmospheric pressure to operate.
B) The manometer equalizes pressure of a vacuum.
C) A manometer checks pressure greater than atmospheric pressure.
D) The manometer can detect a vacuum at absolute pressure.