A. closed
B. open
C. depends on starting condition and flow desired
D. could be either open or closed
E. partly open and partly closed
Related Mcqs:
- Axial flow pump is started with its delivery valve________________?
A. kept fully closed
B. kept fully open
C. irrespective of any position
D. kept 50% open
E. none of the above - Centrifugal pump is started with its delivery valve __________________?
A. kept fully closed
B. kept fully open
C. irrespective of any position
D. kept 50% open
E. none of the above - If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water would discharge_____________________?
A. same quantity of liquid
B. 0.75 Q
C. Q/0.75
D. 1.5 Q
E. none of the above - In axial flow fans and turbines, fluid enters and leaves as follows________________?
A. radially, axially
B. axially, radially
C. axially, axially
D. radially, radially
E. combination of axial and radial - A turbine pump is basically a centrifugal pump equipped additionally with_________________?
A. adjustable blades
B. backward curved blades
C. vaned diffusion casing
D. inlet guide blades
E. totally submerged operation facility - In a centrifugal pump casing, the flow of water leaving the_______________?
A. radial
B. radial
C. centrifugal
D. rectilinear
E. vortex - In a centrifugal pump casing, the flow of water leaving the impeller, is___________________?
A. rectilinear flow
B. radial flow
C. free vortex motion
D. forced vortex
E. none of the above - The efficiency of a centrifugal pump is maximum when its blades are__________________?
A. straight
B. bent forward
C. bent backward
D. bent forward first and then backward
E. bent backward first and then forward - In a centrifugal pump, the liquid enters the pump__________________?
A. at the top
B. at the bottom
C. at the center
D. from sides
E. none of the above - Indicator diagram of a reciprocating pump is a graph between________________?
A. flow vs swept volume
B. pressure in cylinder vs swept volume
C. flow vs speed
D. pressure vs speed
E. swept volume vs speed
