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GATE2020 Fluid Mechanics Rapid Quiz 2
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Question 1
A fluid jet discharging from a 4 cm diameter orifice has a diameter 3 cm at its vena contracta. If the coefficient of velocity is 0.98, the coefficient of discharge for the orifice will be
Question 2
Which of the following Froude number range indicates a weak jump?
Question 3
A hydraulic pump has a discharge of 5 m3/sec, 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
Question 4
A compound piping system consists of 2000 m of 0.60 m, 1500 m of 0.50 m and 900 m of 0.35 m new cast iron pipes connected in series. The equivalent length (in m) of 0.40 m pipe is
Question 5
A 1 m wide rectangular channel carries a discharge of 2m3/s. The specific energy-depth diagram is prepared for the channel. It is observed in this diagram that corresponding to a particular specific energy; the subcritical depth is twice the supercritical depth. The subcritical depth (in meters, up to two decimal places) is equal to ______
Question 6
A sector gate is provided on a spillway as shown in the figure. Assuming the resultant force per meter length (expressed in kN/m) on the gate will be _______ .
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Nov 18ESE & GATE CE