Table of Contents

Hydraulics & Fluid Mechanics Objective Questions ( MCQs ) PDF containing 515 Hydraulics & 60 Fluid questions is given below. You can directly download this PDF and study from it.

** 1. Details of the PDF **

Topic of MCQs | Hydraulics & Fluid Mechanics |

Size | 919 KB |

Pages | 103 |

Number of Questions | 515 Hydraulics & 60 Fluids |

Click on the download bottom below to download the PDF: |

** 2. Some questions from PDF **

**Question No. 1**

**The error in discharge (dQ/Q) to the error in measurement of the head (dH/H) over a rectangular notch is given by**

(A) dQ/Q = (1/2) × (dH/H)

(B) dQ/Q = (3/4) × (dH/H)

(C) dQ/Q = (dH/H)

(D) dQ/Q = (3/2) × (dH/H)

**Answer: Option D**

**Question No. 2**

**The flow of water through the hole in the bottom of a washbasin is an example of**

(A) Steady flow

(B) Uniform flow

(C) Free vortex

(D) Forced vortex

**Answer: Option C**

**Question No. 3**

**A flow in which the viscosity of the fluid is dominating over the inertia force is called**

(A) Steady flow

(B) Unsteady flow

(C) Laminar flow

(D) Turbulent flow

**Answer: Option C**

**Question No. 4**

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

(A) Area of flow and wetted perimeter

(B) Wetted perimeter and diameter of the pipe

(C) Velocity of flow and area of flow

(D) None of these

**Answer: Option A**

**Question No. 5**

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

(A) One-dimensional flow

(B) Two-dimensional flow

(C) Three-dimensional flow

(D) Four-dimensional flow

**Answer: Option B**

**Question No. 6**

**The value of the coefficient of discharge is __________ the value of the coefficient of velocity.**

(A) Less than

(B) Same as

(C) More than

(D) None of these

**Answer: Option A**

**Question No. 7**

**The hydraulic mean depth for a circular pipe of diameter (d) is**

(A) d/6

(B) d/4

(C) d/2

(D) d

**Answer: Option B**

**Question No. 8**

**A fluid whose viscosity does not change with the rate of deformation or shear strain is known as**

(A) Real fluid

(B) Ideal fluid

(C) Newtonian fluid

(D) Non-Newtonian fluid

**Answer: Option C**

**Question No. 9**

**The barometer is used to measure**

(A) Velocity of liquid

(B) Atmospheric pressure

(C) Pressure in pipes and channels

(D) Difference of pressure between two points in a pipe

**Answer: Option B**

**Question No. 10**

**An error of 1% in measuring head over the crest of the notch (H) will produce an error of __________ in discharge over a triangular notch,**

(A) 1 %

(B) 1.5 %

(C) 2 %

(D) 2.5 %

**Answer: Option D**

**Question No. 11**

**The coefficient of venturi-flume, generally, lies between**

(A) 0.3 to 0.45

(B) 0.50 to 0.75

(C) 0.75 to 0.95

(D) 0.95 to 1.0

**Answer: Option D**

**Question No. 12**

**A flow in which the quantity of liquid flowing per second is not constant is called**

(A) Streamline flow

(B) Turbulent flow

(C) Steady flow

(D) Unsteady flow

**Answer: Option D**

**Question No. 13**

**The specific gravity of water is taken as**

(A) 0.001

(B) 0.01

(C) 0.1

(D) 1

**Answer: Option D **

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