Gate Exam Category


The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship, will be maximum when the relative velocity of the jet and ship is equal to twice the velocity of the ship.


A. Yes
B. No

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Gate Other Question


An impulse turbine is used for


A. low head of water
B. high head of water
C. medium head of water
D. high discharge


The cavitation in reaction turbines is avoided, to a great extent by


A. installing the turbine below the tail race level
B. using stainless steel runner of the turbine
C. providing highly polished blades to the runner
D. all of the above