View note:CE2258-HYDRAULIC-ENGINEERING-LAB



Questions of this subject!.

QuestionLikes!Dislikes!Answers!
1)How do you calculate the power of a centrifugal pump?

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2)What is rigging?

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3)What is a projection line?

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4)How many bricks are there in 100cft?

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5)Sulphate Resisting Cement ?

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6)Special thing in designing a overhead reservoir which is different from an ordinary design

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7)The pump with a low initial cost and low maintenance cost is

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8)How is flow operator used in R software?

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9)T he purpose of having grooves or notches in modern flyer tops in speed frames is to

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10)A plate of thickness h = 120 mm is cold rolled in a mill with a roll diameter of 200 mm. If the coefficient of friction μ is 0.1, the maximum possible reduction Δh in a single pass is ________ (in mm to one decimal place)

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11)S elect the correct statement for 50% reaction stage in a steam turbine.

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12)A test is conducted on a one-fifth scale model of a Francis turbine under a head of 2 m and volumetric flow rate of 1 m3/s at 450 rpm. Take the water density and the acceleration due to gravity as 103 kg/m3 and 10 m/s2, respectively. Assume no losses both in model and prototype turbines. The power (in MW) of a full sized turbine while working under a head of 30 m is _______ (correct to two decimal places).

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13)A venturi meter is installed to measure the flow rate of water in a 178 mm diameter (ID) pipe. The throat diameter is 102 mm. The differential pressure measured using a manometer is 154.3 kN/m2. The data given are: discharge coefficient = 0.98; water density = 1000 kg/m3. The volumetric flow rate of water (in m3/s) is _________.

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14)A set of standard stainless steel pipes, each of internal diameter 26.65 mm and 6000 mm length, is used to make a plug flow reactor by joining them in series to carry out degradation of polyethylene. Seven such pipes are required to obtain a conversion of 66% at 450 K. The minimum number of standard 8000 mm long pipes of the same internal diameter to be procured for obtaining at least 66% conversion under the same reaction conditions is ___________.

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15)Pipes A and B can separately fill a tank in 75 mind and 90 min respectively. Pipe C can empty the same tank in 3 hr. Al the three pipes are opened simultaneously. After half an hour, pipe A and B are stopped while pipe C continues its work. How long will pipe C take now to empty the tank?

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16)Explain Kaplan turbine?

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17)Explain i impulse turbine ?

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18)Explain Fransis turbine?

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19)A rigid insulated tank is initially evacuated. It is connected through a valve to a supply line that carries air at a constant pressure and temperature of 250 kPa and 400 K respectively. Now the valve is opened and air is allowed to flow into the tank until the pressure inside the tank reaches to 250 kPa at which point the valve is closed. Assume that the air behaves as a perfect gas with constant properties

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