A. 1
B. 0.1
C. 0.01
D. 0.001
Related Mcqs:
- _____________________ pumps are a group of vacuum pumps ?
A. Hyster
B. Sump
C. Mono
D. Submerged - ______________ pumps are axial flow pumps?
A. Turbine
B. Propeller
C. Diffuser
D. None of these - Reciprocating pumps are not able to compete with the centrifugal pump for industrial use, mainly because these pumps have_____________?
A. Very low speeds
B. Smaller discharge
C. Higher capital &maintenance cost
D. High vibrations - In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes_______________?
A. Less than atmospheric pressure
B. More than liquid vapor pressure
C. Less than liquid vapor pressure
D. More than atmospheric pressure - In which of the following cases, it is possible for flow to occur from low pressure to high pressure ?
A. Flow of liquid upward in a vertical pipe
B. Flow through a converging section
C. Flow of air downward in a pipe
D. Impossible in a constant cross-section conduit - Centrifugal pumps as compared to reciprocating pumps__________________?
A. Run at a lower speed for the same discharge
B. Do not need priming
C. Deliver fluid with pulsating/fluctuating discharge
D. Can be run with discharge line valve closed for a short interval - Propeller type centrifugal pumps are most suitable for__________________?
A. High capacity at high heads
B. High capacity at low heads
C. Low capacity at high heads
D. Low capacity at low heads - Diaphragm pumps are used to transport_________________?
A. Solids
B. Liquids
C. Fluids
D. Slurries - Foot valves provided in pumps are ____________ valves?
A. Relief
B. Three/four way
C. Pressure reducing
D. Directional control - Reciprocating pumps compared to centrifugal pumps__________________?
A. Deliver liquid at uniform pressure
B. Can handle slurries more efficiently
C. Are not subject to air binding
D. Can be operated with delivery valve closed
