A. At high pressure
B. In bends
C. For controlling water flow
D. For unidirectional flow
Related Mcqs:
- Foot valves provided in pumps are ____________ valves?
A. Relief
B. Three/four way
C. Pressure reducing
D. Directional control - Foot valves are provided in the suction line of a centrifugal pump to ____________________?
A. Avoid priming, every time we start the pump
B. Remove the contaminant present in the liquid
C. Minimise the fluctuation in discharge
D. Control the liquid discharge - Diaphragm valves are used for handling _______________ fluids?
A. Corrosive
B. Viscous
C. Non-Newtonian
D. Solid suspended - Which of the following valves will incur maximum pressure drop for the same discharge of water ?
A. Globe valve
B. Gate valve
C. Needle valve
D. Butterfly valve - Check valve is used for ________________ flow?
A. Very precise control of
B. Unidirectional
C. Multidirectional
D. None of these - Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the_______________?
A. Back flow of fluid in the event of stoppage of pump
B. Discharge pressure
C. Flow of liquid during operation of the pump
D. All A., B. and C. - Check in a centrifugal pump is________________?
A. Provided in the discharge line
B. Generally a globe valve
C. Provided to prevent liquid from backing up through the pump when the pump is turned off or
accidently stops running
D. All A., B. and C. - A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit E. to deliver water at a flow rate of 0.001 m3/s? The Fanning friction factor, f is 0.0062 ?
A. 10 m
B. 11 m
C. 11.8 m
D. 30 m - Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around________________?
A. 2000
B. 10
C. 100
D. 1000 - A hydraulic accumulator comprises of__________________?
A. A storage device and a control valve
B. A cylinder and a plunger
C. Two pistons and two cylinders
D. A storage tank and a ram pump
