1. A tank is filled with air at a gauge pressure of 6 bar and 55 °C, determine the specific weight of the air in the tank. 2. Which of the following manometer cannot be adjusted for different pressure levels? O Piezometer tube o o U-tube manometer 3. A hydraulic press has a ram of 20 cm diameter and a plunger of 3 cm diameter. The supplied force at the ram is 7.5 KN. Find the required force at the plunger. 4. The variations in pressure and temperature generally have only a small effect on liquid density. O O 5. In Inclined-tube manometer 9. True False flow, the velocity is the same along the streamline but it is continuously changing with time. o Uniform steady O Non-uniform unsteady O Uniform unsteady o Non-uniform steady 6. A Venturimeter having inlet diameter 1.8 cm and throat diameter 0.5 cm. The oil-mercury differential manometer has a reading of 5 cm. Calculate the discharge of an oil of SG=0.9. 7. The viscosity of liquids increases with the increase of temperature while the viscosity of gases decreases with the temperature increase. o True O False 8.---- is a valve that maintains the operation pressure at a certain level. o Relieve valve o Regulator valve Check valve o o Shut off valve lies along the median line of the body which divides the shape into two equal parts. Center of pressure (Cp) o o Centroid (C) o Center of gravity (CG) 10. In turbulent flow, each particle of the fluid follows a smooth path, usually at low velocities, which never interferes with one another. o True o False
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