A. smoothen flow
B. reduce acceleration to minimum
C. increase pump efficiency
D. save pump from cavitation
E. increase pump head
Correct Answer: reduce acceleration to minimum ✔
Last Updated: January 24, 2019
Related MCQs
- In axial flow fans and turbines, fluid enters and leaves as follows__________?
- The angle of taper on draft tube is A. greater than 15° B. greater than 8° C. greater than 5° D. less than 8° E. less than 3°.__________?
- Reaction turbines are used for__________?
- The flow rate in gear pump__________?
- Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between__________?
- Casting of a centrifugal pump is designed so as to minimize__________?
- High specific speed of turbine implies it is__________?
- The maximum number of jets generally employed in impulse turbine without jet interference is__________?
- Any change in load is adjusted by adjusting following parameter on turbine__________?
- Indicator diagram of a reciprocating pump is a graph between__________?
- Medium specific speed of a pump implies it is__________?
- Motion of a liquid in a volute casing of a centrifugal pump is an example of__________?
- The horse power required in above case will be__________?
- For small discharge at high pressure, following pump is preferred__________?
- Low specific speed of a pump implies it is__________?
- In a centrifugal pump, the liquid enters the pump__________?
- In centrifugal pumps, maximum efficiency is obtained when the blades are__________?
- The optimum value of vane exit angle for a centrifugal pump impeller is__________?
- 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__________?
- When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be__________?
- The efficiency of a centrifugal pump is maximum when its blades are__________?
- Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of__________?
- In a centrifugal pump casing, the flow of water leaving the__________?
- Head developed by a centrifugal pump depends on__________?
- Axial flow pump is started with its delivery valve__________?
- One horsepower is equal to__________?
- In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by__________?
- Multistage centrifugal pumps are used to obtain__________?
- When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be __________?
- Centrifugal pump is started with its delivery valve __________?
- For starting an axial flow pump, its delivery valve should be__________?