Question 1

The force shown is partially due to a pressure acting uniformly over the area of 100 cm2. The pressure is nearest:

Accepted Answer

A)  6.02 kPa 
B)  6.91 N·m 
C)  8.84 N·m 
D)  10.1 N·m D

Question 2

The percentage error, considering the pressure from Table B.3 in the Appendix to be more accurate, is nearest:

Accepted Answer

A)  0.08 % 
B)  0.13 % 
C)  0.24 % 
D)  0.31 % B

Question 3

A water-well driller measures the water level in a well to be 20 ft below the surface. The point on the well is 250 ft below the surface. The pressure at the point, in SI units, is estimated to be:

Accepted Answer

A)  632 kPa 
B)  652 kPa 
C)  688 kPa 
D)  698 kPa C

Question 4

The pressure on the lower surface of the cylinder is $20 \mathrm { kPa }$. If the variation of pressure in the vertical direction is given by $\partial p / \partial z = - 2400 \mathrm {~Pa} / \mathrm { m }$, the pressure on the upper surface is nearest:

Accepted Answer

A)  19.52 kPa 
B)  20.48 kPa 
C)  −28.0 kPa 
D)  31.20 kPa

Exam 3: Introduction to Fluids in Motion

The force shown is partially due to a pressure acting uniformly over the area of 100 cm2. The pressure is nearest:

The percentage error, considering the pressure from Table B.3 in the Appendix to be more accurate, is nearest:

A water-well driller measures the water level in a well to be 20 ft below the surface. The point on the well is 250 ft below the surface. The pressure at the point, in SI units, is estimated to be: