For (8) questions only, choose the correct answer
1. The variations in pressure and temperature generally have only asmall effect on liquid
density.
o True
o False
2. Ratio between the density of the fluid to the density of thestandard fluid is
o Specific weight
o Specific volume
o Specific gravity
3. The viscosity of liquids increases with the increase oftemperature while the viscosity of gases
decreases with the temperature increase.
o True
o False
4. − − − − − is used to measure small differences in gaspressures.
o Piezometer tube.
o Differential manometer
o Inclined-tube manometer
o U-tube manometer
5. The pressure of fluid at rest is independent of pressuredirection as long as there are no
shearing stresses present.
o True
o False
6. In − − − − − flow, the velocity at a given point may differ fromother points along the
streamline but do not change with time.
o Uniform
o Non-uniform
o Steady
o Non-steady

7. When the application requires a great amount ofpower, pneumatic system is used.
o True
o False
8. − − − − − lies along the median line of the body which dividesthe shape into two equal
parts.
o Center of pressure (Cp)
o Centroid (C)
o Center of gravity (CG)
9. In laminar flow, each particle of the fluid follows a smoothpath, usually at low velocities,
which never interferes with one another.
o True
o False
10. − − − − − is a control valve that reduces the input pressure ofa fluid to a desired value
keeping the operating pressure constant.
o Relieve valve
o Regulator valve
o Check valve
o Shut off valve