Search
.Management Sciences
According to fan laws, for fans having constant wheel diameter, the pressure varies________________?
A. directly as fan speed
B. square of fan speed
C. cube of fan speed
D. square root of fan speed
E. none of the above
Related Mcqs:
- Low specific speed of a pump implies it is____________________?
- A. centrifugal pump B. mixed flow pump C. axial flow pump D. any one of the above E. none of the above...
- According to fan laws, at constant speed and capacity, the pressure and power vary_____________________?
- A. directly as the air or gas density B. inversely as square root of density C. inversely as density D. as square of density E. as square root of density...
- Maximum impulse will be developed in hydraulic ram when ___________________?
- A. waste valve closes suddenly B. supply pipe is long C. supply pipe is short D. ram chamber is large E. supply pipe has critical diameter...
- Francis turbine is best suited for_____________________?
- A. medium head application from 24 to 180 m B. low head installation up to 30 m C. high head installation above 180 m D. all types of heads E. none of the above...
- Impulse turbine is generally fitted______________________?
- A. at the level of tail race B. little above the tail race C. slightly below the tail race D. about 2.5 m above the tail race to avoid cavitation E. about 2.5 m below the tail race to avoid cavitation...
Recent Comments