Q. In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant ?

View solution

Q. The continuity equation in ideal fluid flow states that

View solution

Q. Which of the following is most prone to pulsating discharge flow ?

View solution

Q. A streamline is

View solution

Q. Which of the following relationship is valid for the equilibrium position of the float in a rotameter ? (where, Df = Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)

View solution

Q. Drag is defined as the force exerted by the

View solution

Q. The boundary layer is that part of a moving fluid, in which the fluid velocity is

View solution

Q. The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is

View solution

Q. A relief valve

View solution

Q. An isentropic process is the one, in which

View solution

Q. The distribution of shear stress in a stream of fluid in a circular tube is

View solution

Q. A fluid is the one, which

View solution

Q. One horsepower is equal to

View solution

Q. A fluid (μ/ρ = 0.01 cm²/sec) is moving at critical flow condition (Nʀₑ = 2100) through a pipe of dia 3 cms. Velocity of flow is __________ cm/sec.

View solution

Q. Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury)

View solution

Q. The pressure drop per unit length of pipe incurred by a fluid 'X' flowing through pipe is Δp. If another fluid 'Y' having both the specific gravity & density just double of that of fluid 'X', flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be

View solution

Q. Fluid flow in a/an __________ is an example of pressure flow.

View solution

Q. In the laminar boundary layer flow over a flat plate, the ratio (δ/x) varies as :(where, 'δ' is the boundary layer thickness and 'x' is the distance from the leading edge in the direction of flow).

View solution

Q. A rotameter through which air at room temperature and atmospheric pressure is flowing gives a certain reading for a flow rate of 100 cc/sec. If helium (molecular weight 4) is used and rotameter shows the same reading, the flow rate (cc/sec) is

View solution

Q. A 0.5 m high bed made up of a 1 mm dia glass sphere (density 2500 kg/m³ ) is to be fluidised by water (density 1000 kg/m³ ). If at the point of incipient fluidisation, the bed voidage is 40%, the pressure drop across the bed is

View solution