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Test: Hydraulics & Fluid Mechanics - 6 - Civil Engineering (CE) MCQ


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25 Questions MCQ Test Additional Documents & Tests for Civil Engineering (CE) - Test: Hydraulics & Fluid Mechanics - 6

Test: Hydraulics & Fluid Mechanics - 6 for Civil Engineering (CE) 2024 is part of Additional Documents & Tests for Civil Engineering (CE) preparation. The Test: Hydraulics & Fluid Mechanics - 6 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Hydraulics & Fluid Mechanics - 6 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Hydraulics & Fluid Mechanics - 6 below.
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Test: Hydraulics & Fluid Mechanics - 6 - Question 1

The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice)

Detailed Solution for Test: Hydraulics & Fluid Mechanics - 6 - Question 1

Correct Answer :- A

Explanation : In a small rectangular orifice, the velocity of water in the entire cross-section of the jet is approximately constant, so the discharge can be approximately with the relation, = 2/3 cd * a * √2gh.

Test: Hydraulics & Fluid Mechanics - 6 - Question 2

The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.

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Test: Hydraulics & Fluid Mechanics - 6 - Question 3

The difference between the notch and weir is that the notch is of bigger size and the weir is of a smaller size.

Test: Hydraulics & Fluid Mechanics - 6 - Question 4

An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.

Test: Hydraulics & Fluid Mechanics - 6 - Question 5

Euler's number is the ratio of __________ force to pressure force.

Test: Hydraulics & Fluid Mechanics - 6 - Question 6

The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

Test: Hydraulics & Fluid Mechanics - 6 - Question 7

The ratio of velocity of fluid in an undisturbed stream to the velocity of sound wave is known as Mach number.

Test: Hydraulics & Fluid Mechanics - 6 - Question 8

The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

Test: Hydraulics & Fluid Mechanics - 6 - Question 9

All the gases are considered to have compressible flow and all the liquids are considered to have incompressible flow.

Test: Hydraulics & Fluid Mechanics - 6 - Question 10

When a cylindrical vessel containing liquid is revolved, the surface of the liquid takes the shape of

Test: Hydraulics & Fluid Mechanics - 6 - Question 11

The hydraulic mean depth or the hydraulic radius is the ratio of

Test: Hydraulics & Fluid Mechanics - 6 - Question 12

The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

Test: Hydraulics & Fluid Mechanics - 6 - Question 13

A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

Test: Hydraulics & Fluid Mechanics - 6 - Question 14

Stoke is the unit of

Test: Hydraulics & Fluid Mechanics - 6 - Question 15

One poise is equal to

Test: Hydraulics & Fluid Mechanics - 6 - Question 16

The absolute pressure is equal to

Test: Hydraulics & Fluid Mechanics - 6 - Question 17

When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called

Test: Hydraulics & Fluid Mechanics - 6 - Question 18

The hammer blow in pipes occurs when

Test: Hydraulics & Fluid Mechanics - 6 - Question 19

When a body is placed over a liquid, it will sink down if

Test: Hydraulics & Fluid Mechanics - 6 - Question 20

When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is

Test: Hydraulics & Fluid Mechanics - 6 - Question 21

A flow whose streamline is represented by a curve, is called

Test: Hydraulics & Fluid Mechanics - 6 - Question 22

When the Mach number is less than unity, the flow is called

Test: Hydraulics & Fluid Mechanics - 6 - Question 23

When the end contractions of the weir are suppressed, then number of end contractions (n) are taken as zero

Test: Hydraulics & Fluid Mechanics - 6 - Question 24

A flow is called hyper-sonic, if the Mach number is

Test: Hydraulics & Fluid Mechanics - 6 - Question 25

The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is

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