Q. In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes

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Q. Pressure gradient in the pipe flow is influenced by the

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Q. __________ pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm².

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Q. Boiler feed water pump is usually a __________ pump.

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Q. Forces acting on a particle settling in fluid are __________ forces.

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Q. For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the

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Q. In a dry packed bed, the pressure drop will be changed by increasing the flow rate as

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Q. Specific speed of a centrifugal pump depends upon the __________ head.

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Q. Navier-Stokes equation is useful in the analysis of __________ fluid flow problems.

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Q. With increase in molecular weight of the gas, the head developed by a centrifugal compressor will

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Q. Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).

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Q. The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number.

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Q. Low specific speed of a pump implies that, it is a/an __________ pump.

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Q. The maximum discharge through a circular channel takes place, when the depth of the fluid flow is __________ times the pipe diameter.

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Q. When the head pumped against is less than the head of the fluid used for pumping, the usual device is a/an

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Q. Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

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Q. What is the value of co-efficient of discharge for square edged circular orifice (for β = 0.3 to 0.5) ?

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Q. A lubricant 100 times more viscous than water would have a viscosity (in Pa.s)

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Q. Nominal Pipe Size (NPS) of a pipe less than 12 inches in diameter indicates its

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Q. I.D. of 1/4" schedule 40 pipe is 0.364". I.D. of a 1/2" schedule 40 pipe would be __________ inch

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