Q. As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1

View solution

Q. The pressure head of a flow meter remains constant for

View solution

Q. A venturimeter can not be used for the direct measurement of

View solution

Q. A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double

View solution

Q. Which of the following is used for very accurate measurement of flow of gas at low velocity ?

View solution

Q. A centrifugal pump has the following specifications:

Power = 4 H.P.
Speed = 800 rpm
Head = 8 metres
Flow = 1000 litres/minutes.

If its speed is halved, the new discharge will be __________ litres/minute.

View solution

Q. The dimension of kinematic viscosity is

View solution

Q. A pipe of I.D. 4 m is bifurcated into two pipes of I.D. 2 m each. If the average velocity of water flowing through the main pipe is 5 m/sec, the average velocity through the bifurcated pipes is

View solution

Q. Turbulent flow generally occurs for cases involving

View solution

Q. Lower BWG means __________ of the tube.

View solution

Q. Which of the following pipe bends will incur the largest head loss ?

View solution

Q. Which is the most efficient and best for measuring very small flow rate of gases ?

View solution

Q. When the water is warm, the height to which it can be lifted by a pump

View solution

Q. Pipes having diameter 14 inches or more are designated by their

View solution

Q. Viscosity of water at 40°C lies in the range of

View solution

Q. Self-priming centrifugal pump can be used for

View solution

Q. Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

View solution

Q. Bernoull's equation does not apply to the functioning of a/an

View solution

Q. What is the shear rate at the pipe wall, in case of laminar flow of Newtonion fluids in a pipe of diameter 'D' & length 'L' incurring a pressure drop 'Δp' with average velocity 'Vₐᵥ'?

View solution

Q. Pascal's law is valid, only when the fluid is

View solution