The flow of water through the hole in the bottom of a wash basin is an example of (A) Steady flow (B) Uniform flow (C) Free vortex (D) Forced vortex

The flow of water through the hole in the bottom of a wash basin is an example of
(A) Steady flow
(B) Uniform flow
(C) Free vortex
(D) Forced vortex
by

1 Answer

Answer :

Answer: Option C
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When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as (A) Steady flow (B) Turbulent flow (C) Vortex flow

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The flow in which the particles of a fluid attain such velocities that varies from point to point in magnitude and direction as well as from instant to instant, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

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The height of the sink of wash basin above floor level is kept (A) 60 cm (B) 70 cm (C) 75 cm to 80 cm (D) 80 cm

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Gradually varied flow in open channel is a/an __________ flow. (A) Steady uniform (B) Steady non-uniform (C) Unsteady uniform (D) Unsteady non-uniform

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Normal depth in open channel flow is the depth of flow in the channel (A) Corresponding to uniform flow(B) Measured normal to the channel bed(C) Corresponding to steady flow(D) None of these

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A ______ is a flow in which the gas flow is adiabatic and frictionless and entropy change is zero.  A. Isentropic flow  B. Isobaric flow  C. Steady flow  D. Uniform flow

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The tangential velocity of the water element having a free vortex is (A) Directly proportional to its distance from the centre (B) Inversely proportional to its distance from the centre (C) Directly proportional to its (distance)2 from the centre (D) Inversely proportional to its (distance)2 from the centre

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The wash hand basin shall be fixed at a height of (a) 75-80 cm* (b) 75 cm (c) 80 cm (d) Not specified

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Consider the following statements in respect of steady laminar flow through a circular pipe: 1. Shear stress is zero on the central axis of the pipe 2. Discharge varies directly with the viscosity of the fluid 3. Velocity is maximum at the centre of the pipe. 4. Hydraulic gradient varies as the square of the mean velocity of flow. Which of these statements are correct? (a) 1, 2 , 3 & 4 (b) 1 & 3 only (c) 2 & 4 only (d)3 & 4 only

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