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ESE CE: Hydraulics Champion Quiz 3
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Question 1
Assertion (A): In the case of water power plants, it is advisable to provide the surge tank as close to the turbine unit as possible.
Reason (R): Purpose of surge tank is to provide the Intended protection for the portion of the penstock which lies on the upstream of it.
Reason (R): Purpose of surge tank is to provide the Intended protection for the portion of the penstock which lies on the upstream of it.
Question 2
Statement (I): An impulse turbine can run without change in its hydraulic efficiency even if its casing is damaged.
Statement (II): An impulse turbine will not have draft tube.
Statement (II): An impulse turbine will not have draft tube.
Question 3
Statement (I): Cavitation occurs at the entrance of the turbine while it occurs at the exit of the pump.
Statement (II): In both the cases local pressure at these points falls below the vapour pressure of the flowing liquid.
Statement (II): In both the cases local pressure at these points falls below the vapour pressure of the flowing liquid.
Question 4
When a hydraulic turbine is operated, it is found that it has high design efficiency and this efficiency remains constant over a wide range of regulation from the design condition. The turbine is
Question 5
A jet of oil with relative density 0.7 strikes normally a plate with a velocity of 10 m/s. The jet has an area of 0.03 m2. The force exerted on the plate by the jet is
Question 6
Which one of the following turbines exhibits a nearly constant efficiency over a 60% to 140% of design speed?
Question 7
Which one of the following statements is not correct?
A control section in an open channel is the site
A control section in an open channel is the site
Question 8
A single pipe of length 1500 m and diameter 60 cm connects two reservoirs having a difference of 20 m in their water levels. The pipe is to be replaced by two pipes of the same lengthy and equal diameter d to convey 25% more discharge under the same head loss. If the friction factor is assumed to be the same for all the pipes, the value of d is approximately equal to which of the following options?
Question 9
Froude number is the ratio of inertia force to
Question 10
Geometric similarity between Model and prototype means the similarity of
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Aug 7ESE & GATE CE