Home

What is the correct answer?

4

In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by

A. Designing new impeller

B. Trimming the impeller size to the required size by machining

C. Not possible

D. Some other alterations in the impeller

Correct Answer :

B. Trimming the impeller size to the required size by machining


Share this question with your friends
Show all Hydraulics & Fluid Machineries MCQ

Please do not use chat terms. Example: avoid using "grt" instead of "great".

Submit
Load More..

Related Questions

In a Francis turbine runner, the numbers of blades are generally between The flow ratio of Francis turbine is defined as the ratio of the In an inward flow reaction turbine The type of centrifugal pump preferred for a specific speed of 20 r.p.m.… A Pelton wheel develops 1750 kW under a head of 100 metres while running… The ratio of quantity of liquid discharged per second from the pump to… The cavitation in a hydraulic machine is mainly due to The speed of an imaginary turbine, identical with the given turbine, which… Reciprocating pumps are no more to be seen in industrial applications… The discharge through a reaction turbine ________ with the increase in… If the net positive suction head (NPSH) requirement for the pump is not… The power developed by a turbine is (where H = Head of water under which… The maximum hydraulic efficiency of an impulse turbine is (where φ… An impulse turbine is used for A Pelton wheel develops 1750 kW under a head of 100 metres while running… The ratio of actual work available at the turbine to the energy imparted… A turbine is required to develop 1500 kW at 300 r.p.m. under a head of… Francis turbine is best suited for If a pump is handling water and is discharging a certain flow Q at a constant… In a centrifugal pump casing, the flow of water leaving the The unit power developed by a turbine is (where P = Power developed by… The number of buckets on the periphery of a Pelton wheel is given by The force exerted by a jet of water (in a direction normal to flow) impinging… The specific speed of a turbine is given by the equation The efficiency of a Pelton wheel working under constant head ________… According to fan laws, for fans having constant wheel diameter, the pressure… The static head of a centrifugal pump is equal to the ________ of suction… In a Kaplan turbine runner, the numbers of blades are generally between Low specific speed of a pump implies it is One horsepower is equal to

Also checkout

Comparative Government and Politics MCQ Compressors, Gas Turbines & Jet Engines MCQ Wound Repair And Care MCQ Television Production MCQ Property of Material MCQ Articles MCQ AP Environmental Science MCQ General Biology MCQ World History MCQ Current Affairs July 2023 MCQ Animal Kingdom MCQ Cricket MCQ