Hello Diploma Students in this article we have provided Hydraulics Multiple Choice Questions and Answers. In this Hydraulics Mcq Questions We have Selected 25 Important Questions from Previous Year Papers and Made A possible Set Of Questions which can Help Diploma Students in Preparation for Their Exams.

This Mcq on Hydraulics Is Ideal for Candidates who are in 2nd Year of Diploma in Civil Engineering By Referring this Hydraulics Mcqs Questions With Answers Polytechnic Civil Engineering Students Can Practice for their Upcoming Exams. We Have Also Provided Hydraulics Mcq Questions and Answers pdf Download Link at the end of the Quiz You can Download it for Future Reference.

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Hydraulics Multiple Choice Questions and Answers

1) If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be
A) h
B) wh
C) w/h
D) h/w
E) h/wh.

Correct!

Wrong!

2) Choose the wrong statement
A) Viscosity of a fluid is that property which determines the amount of its resistance to a shearing force
B) Viscosity is due primarily to interaction between fluid molecules
C) Viscosity of liquids decreases with in-crease in temperature
D) Viscosity of liquids is appreciably affected by change in pressure
E) Viscosity is expressed as poise, stroke, or saybolt seconds.

Correct!

Wrong!

3) The units of kinematic viscosity are
A) meters 2 per sec
B) kg sec/metre
C) newton-sec per metre
D) newton-sec per metre
E) None of the above

Correct!

Wrong!

4) The ratio of absolute viscosity to mass density is known as
A) specific viscosity
B) viscosity index
C) kinematic viscosity
D) coefficient of viscosity
E) coefficient of compressibility.

Correct!

Wrong!

5) Kinematic viscosity is equal to
A) dynamic viscosity/density
B) dynamic viscosity x density
C) density/dynamic viscosity
D) 1/dynamic viscosity x density
E) same as dynamic viscosity.

Correct!

Wrong!

6) Which of the following is the unit of kinematic viscosity
A) pascal
B) poise
C) stoke
D) faraday
E) none of the above.

Correct!

Wrong!

7) A one dimensional flow is one which
A) is uniform flow
B) is steady uniform flow
C) takes place in straight lines
D) involves zero transverse component of flow
E) takes place in one dimension.

Correct!

Wrong!

8) Alcohol is used in manometers because
A) it has low vapour pressure
B) it is clearly visible
C) it has low surface tension
D) it can provide longer column due to low density
E) provides suitable meniscus.

Correct!

Wrong!

9) A pressure of 25 m of head of water is equal to
A) 25 kN/m2
B) 245 kN/m2
C) 2500 kN/m2
D) 2.5kN/m2
E) 12.5 kN/m2.

Correct!

Wrong!

10) Specific weight of sea water is more that of pure water because it contains
A) dissolved air
B) dissolved salt
C) suspended matter
D) all of the above
E) heavy water.

Correct!

Wrong!

11) If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its
A) specific weight
B) specific mass
C) specific gravity
D) specific density
E) None of the above

Correct!

Wrong!

12) Free surface of a liquid tends to contract to the smallest possible area due to force of
A) surface tension
B) viscosity
C) friction
D) cohesion
E) adhesion.

Correct!

Wrong!

13) A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching the sides of the bucket from another support. The spring balance reading will
A) increase
B) decrease
C) remain same
D) increase/decrease depending on depth of immersion
E) unpredictable.

Correct!

Wrong!

14) Falling drops of water become spheres due to the property of
A) adhesion
B) cohesion
C) surface tension
D) viscosity
E) compressibility.

Correct!

Wrong!

15) A liquid would wet the solid, if adhesion forces as compared to cohesion forces are
A) less
B) more
C) equal
D) less at low temperature and more at high temperature
E) there is no such criterion.

Correct!

Wrong!

16) If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be
A) higher than the surface of liquid
B) the same as the surface of liquid
C) lower than the surface of liquid
D) unpredictable
E) All of the above.

Correct!

Wrong!

17) The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as
A) meta center
B) center of pressure
C) center of buoyancy
D) center of gravity
E) None of the above

Correct!

Wrong!

18) The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be
A) 500 kg
B) 1000 kg
C) 1500 kg
D) 2000 kg
E) 4000 kg.

Correct!

Wrong!

19) The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to
A) Buoyancy
B) Equilibrium of a floating body
C) Archimedes’ principle
D) Bernoulli’s theorem
E) Metacentric principle.

Correct!

Wrong!

20) The resultant upward pressure of the fluid on an immersed body is called
A) upthrust
B) buoyancy
C) center of pressure
D) all the above are correct
E) None of the above

Correct!

Wrong!

21) Turbine is a Machine that convertsĀ  mechanical energy into hydraulic energy.
A) True
B) False

Correct!

Wrong!

22) viscosity is defined as the property of fluid by virtue of which the motion of the lower layer is opposed by the upper layer.
A) True
B) False

Correct!

Wrong!

23) Pressure head is the head possessed by fluid due to having some pressure force by the flowing fluid.
A) True
B) False

Correct!

Wrong!

24) Discharge is defined as the quantity of liquid flowing per second through a section of pipe or a channel.
A) True
B) False

Correct!

Wrong!

25) Pump is a device that converts hydraulic energy into mechanical energy.
A) True
B) False

Correct!

Wrong!

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Hydraulics Mcq Questions

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