Head developed by a centrifugal pump is proportional to diameter of impeller pro

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Mechanical Engineering ‣ Hydraulic Machines Comments

Question
Head developed by a centrifugal pump is
Options
A. proportional to diameter of impeller
B. proportional to speed of impeller
C. proportional to diameter and speed of impeller
D. none of the above

Correct Answer

proportional to diameter and speed of impeller

Hydraulic Machines problems

Search Results

1. If the ratio of all the corresponding linear dimensions are equal, then the model and the prototype are said to have
Options
A. geometric similarity
B. kinematic similarity
C. dynamic similarity
D. none of these

5. Braking jet in an impulse turbine is used
Options
A. to break the jet of water
B. to bring the runner to rest in a short time
C. to change the direction of runner
D. none of these

7. The function of guide vanes in a reaction turbine is to
Options
A. allow the water to enter the runner without shock
B. allow the water to flow over them, without forming eddies
C. allow the required quantity of water to enter the turbine
D. all of the above

9. The undershot water wheels are those in which
Options
A. the wheel runs entirely by the weight of water
B. the wheel runs entirely by the impulse of water
C. the wheel runs partly by the weight of water and partly by the impulse of water
D. none of the above

10. A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used?
Options
A. Pelton wheel with one nozzle
B. Pelton wheel with two or more nozzles
C. Kaplan turbine
D. Francis turbine

Comments

More in Mechanical Engineering: