A hydraulic turbine has a discharge of 5 m3/s, when operating under a head of 20 m with a speed of 500 rpm. If it is to operate under a head of 15 m, for the same discharge, the rotational speed in rpm will approximately be
A. 433 
B. 403 
C. 627 
D. 388
    Correct answer is '433'. Can you explain this answer?

    GATE Question

    S P CHAKRABORTY
    Jul 09, 2021
    For constant discharge, model law
    H/N2D2 = CONSTANT
    20/(500^2*D^2)= 15/(N^2*D^2) from here N =433 rpm

    Aim It Academy
    Jul 08, 2021
    Hydraulic turbine has a discharge of 5 m3/s, when operating under a head of 20 m with a speed of 500 rpm. If it is to operate under a head of 15 m, for the same discharge, the rotational speed in rpm will approximately be.

    This discussion on A hydraulic turbine has a discharge of 5 m3/s, when operating under a head of 20 m with a speed of 500 rpm. If it is to operate under a head of 15 m, for the same discharge, the rotational speed in rpm will approximately beA. 433B. 403C. 627D. 388Correct answer is '433'. Can you explain this answer? is done on EduRev Study Group by GATE Students. The Questions and Answers of A hydraulic turbine has a discharge of 5 m3/s, when operating under a head of 20 m with a speed of 500 rpm. If it is to operate under a head of 15 m, for the same discharge, the rotational speed in rpm will approximately beA. 433B. 403C. 627D. 388Correct answer is '433'. Can you explain this answer? are solved by group of students and teacher of GATE, which is also the largest student community of GATE. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for GATE on EduRev and even discuss your questions like A hydraulic turbine has a discharge of 5 m3/s, when operating under a head of 20 m with a speed of 500 rpm. If it is to operate under a head of 15 m, for the same discharge, the rotational speed in rpm will approximately beA. 433B. 403C. 627D. 388Correct answer is '433'. Can you explain this answer? over here on EduRev! Apart from being the largest GATE community, EduRev has the largest solved Question bank for GATE.

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    This discussion on A hydraulic turbine has a discharge of 5 m3/s, when operating under a head of 20 m with a speed of 500 rpm. If it is to operate under a head of 15 m, for the same discharge, the rotational speed in rpm will approximately beA. 433B. 403C. 627D. 388Correct answer is '433'. Can you explain this answer? is done on EduRev Study Group by GATE Students. The Questions and Answers of A hydraulic turbine has a discharge of 5 m3/s, when operating under a head of 20 m with a speed of 500 rpm. If it is to operate under a head of 15 m, for the same discharge, the rotational speed in rpm will approximately beA. 433B. 403C. 627D. 388Correct answer is '433'. Can you explain this answer? are solved by group of students and teacher of GATE, which is also the largest student community of GATE. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for GATE on EduRev and even discuss your questions like A hydraulic turbine has a discharge of 5 m3/s, when operating under a head of 20 m with a speed of 500 rpm. If it is to operate under a head of 15 m, for the same discharge, the rotational speed in rpm will approximately beA. 433B. 403C. 627D. 388Correct answer is '433'. Can you explain this answer? over here on EduRev! Apart from being the largest GATE community, EduRev has the largest solved Question bank for GATE.