32752. For the laminar flow of a fluid in a circular pipe of radius R, the Hagen-Poisseule equation predicts the volumetric flow rate to be proportional to
32753. Iam always----------trouble with my neighbours.
32754. Interstage coolers are provided in a multistage compressor to
32755. Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.
32756. Reynolds number is the ratio of
32757. For the manometer set up shown in the figure, the pressure difference PA - PB is given by
32758. The discharge through a venturimeter depends upon
32759. N. second/m2 is
32760. The distance between metacentre and __________ is called metacentric height.
32761. Check valve is used for __________ flow.
32762. Capacity of a rotary gear pump can be varied by
32763. For a given Reynolds number, in a hydraulically smooth pipe, further smoothening __________ the friction factor.
32764. Power number is the ratio of
32765. The momentum correction factor for the velocity distribution of laminar flow is
32766. For the same flow rate of a fluid, the pressure drop is the least for
32767. The valve commonly used in pipes larger than 2" dia is a
32768. Foot valves are provided in the suction line of a centrifugal pump to
32769. There isn’t ----------to do now.
32770. In area meter (e.g., rotameter), with increase in the fluid flow rate, the
32771. In power law, , then the fluid is
32772. The buoyant force acting on a floating body is dependent on the
32773. A Newtonion fluid is that
32774. In case of end to end connection of two or more pipes in series, the __________ each pipe.
32775. Which of the following equations applies to the fluid flow through a packed bed for very large Reynolds number ?
32776. The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its
32777. Centrifugal pump can't be used to pump
32778. A stream line is
32779. Quicksand is an example of a __________ fluid.
32780. Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm.
32781. Differential manometer measures the
32782. The pressure and power requirement of a gas fan at constant speed & capacity varies __________ the gas density.
32783. Isothermal turbulent flow of a fluid results in decrease of its pressure, which depends on the
32784. Boundary layer thickness in laminar flow over a flat plate increases as(where, d = distance from the leading edge.)
32785. Gradually varied flow in open channel is a/an __________ flow.
32786. The line of action of the buoyant force acts through the
32787. Cavitation in a centrifugal pump can be avoided by keeping the
32788. Vane anemometer
32789. The peripherial velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec.
32790. Laminar flow is characterised by the nonexistence of
32791. The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length.
32792. Select the correct practical example of steady non-uniform flow.
32793. Hydraulic diameter for non-circular ducts is equal to __________ times the area of flow divided by the perimeter.
32794. Terminal velocity is
32795. Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f1 and that for smooth pipe is f2. Pick out the correct statement.
32796. For an incompressible fluid, the bulk modulus of elasticity is
32797. A fluid is a substance, that
32798. The pressure intensity is the same in all directions at a point in a fluid
32799. Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton's law of viscosity. (II) Newton's second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary.
32800. Mach number is defined as the ratio of the local flow velocity to the sonic velocity in the fluid. For what value of Mach number, the gases are considered incompressible ?
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