A. Inside diameter
B. Outside diameter
C. Thickness
D. None of these
Correct Answer: Outside diameter ✔
Last Updated: March 10, 2019
Related MCQs
- What is the co-efficient of contraction, if a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena-contracta ?
- For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter) ?
- Vena-contracta formed during flow of a liquid through an orificemeter has__________?
- The pitot static tube does not measure the __________ pressure?
- The unit of dynamic viscosity in SI unit is__________?
- Power loss in an orificemeter is __________ that in a Venturimeter?
- Which of the following has the minimum compressibility ?
- Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe?
- The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the__________?
- Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) ?
- Mach number is important in a fluid flow problem, when the inertia and __________ forces predominate?
- What is the ratio of fluid carrying capacity of two pipes having diameters d1 and d2 respectively ?
- Momentum transfer in laminar flow of fluids results due to the__________?
- Cavitation in a centrifugal pump can be avoided by keeping the__________?
- Stoke’s law is valid, when NRe, p is less than__________?
- Gradually varied flow in open channel is a/an __________ flow?
- In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is__________?
- The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its__________?
- The continuity equation__________?
- A fluid is a substance, that__________?
- The schedule number of a pipe is an indication of its__________?
- Dimension of surface tension is (where, F = force, L = length) ?
- Assuming flow to be laminar, if the diameter of the pipe is halved, then the pressure drop will__________?
- Molten soap mass is transported by a __________ pump?
- The exit cone angle in case of a standard Venturimeter is __________ the entrance cone angle?
- Pressure drag does not depend upon the__________?
- With increase in pump speed, its NPSH requirement__________?
- The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid?
- Nominal size of a pipe is an indication of its __________ diameter?
- The velocity profile for turbulent flow through a closed conduit is__________?
- Brownian movement is prominent in the particle size range of __________ microns in case of settling of a particle in a fluid?
- A fluid is the one, which__________?
- Which of the following is not a dimension-less parameter ?
- Steady uniform flow is represented by flow through a/an __________?
- With increasing flow rate, the hydraulic efficiency of a centrifugal pump__________?
- Ratio of pressure and inertia force gives __________ number?
- Most commonly used joint in the underground pipe lines is the__________?
- Gear pump__________?
- For a particle settling in water at its terminal settling velocity, which of the following is true ?
- In a fully turbulent flow (Re > 105) in a pipe of diameter ‘d’, for a constant pressure gradient, the dependence of volumetric flow rate of an incompressible fluid is__________?
- __________ pumps are axial flow pumps?
- Which of the following equations as suggested by Colebrook and White gives the increase in roughness of a new surface (ε0) with age/time (t) (where, ε = roughness of the surface after time’t’. α = a co-efficient to be experimentally determined) ?
- The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is__________?
- Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will__________?
- Which of the following denotes the effect of compressibility in fluid flow ?
- 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__________?
- Hydraulic mean depth (Dm) for a circular pipe of diameter ‘D’ flowing full is 0.25 D. For a circular channel, at Dm = 0.3 D, gives the condition for the maximum ?
- Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, ζ = surface tension of mercury)__________?
- Shear stress in a fluid flowing in a round pipe__________?
- Bed pressure drop in an air fluidised bed of catalyst particles (ρp = 200 kg/m3, Dp = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is__________?
- For the transfer of solution of thick slurry, the pump used is a __________ pump?