civil engineering MCQs – Page 300

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
5981. For very great pressures, viscosity of moss gases and liquids __________________?
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A. decreases

B. shows erratic behaviour

C. increases

D. remains same

E. none of the above.

5982. Kinematic viscosity is dependent upon________________?
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A. density

B. distance

C. pressure

D. level

E. flow

5983. The increase of temperature results in_________________?
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A. increase in viscosity of gas

B. increase in viscosity of liquid

C. decrease in viscosity of gas

D. decrease in viscosity of liquid

E. A. and D. above

5985. The pressure at a point in a fluid will not be same in all the directions when the fluid is________________?
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A. inviscous and moving

B. viscous and moving

C. viscous

D. viscous and static

E. moving

5986. Practical fluids____________________?
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A. possess all the above properties

B. are compressible

C. possess none of the above properties

D. possess surface tension

E. are viscous

5988. The resultant upward pressure of the fluid on an immersed body is called_________________?
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A. center of pressure

B. upthrust

C. buoyancy

D. all the above are correct

E. none of above is correct

5990. The volumetric change of the fluid caused by a resistance is known as_________________?
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A. adhesion

B. compressibility

C. cohesion

D. volumetric index

E. volumetric strain

5991. Surface tension _____________________?
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A. is a function of the curvature of the interface

B. is also known as capillarity

C. acts in the plane of the interface normal to any line in the surface

D. decreases with fall in temperature

E. has no units

5992. The units of viscosity are__________________?
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A. kg sec/metre

B. none of the above

C. newton-sec per metre

D. metres2 per sec

E. newton-sec per metre2

5993. Choose the correct relationship_________________?
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A. hydrostaticforce = surface tension x gravity.

B. specific gravity = gravity x density

C. kinematicviscosity = dynamicviscosity x density

D. dynamicviscosity = kinematicviscosity x density

E. gravity = specific gravity x density

5994. For manometer, a better liquid combination is one having______________?
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A. surface tension is no criterion

B. high density and viscosity

C. low density and viscosity

D. lower surface tension

E. higher surface tension
5995. The surface tension of mercury at normal temperature compared to that of water is____________________?
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A. less

B. more

C. more or less depending on size of glass tube

D. none of the above.

E. same

5996. A fluid in equilibrium cant sustain_________________?
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A. compressive stress

B. all of the above

C. bending stress

D. shear stress

E. tensile stress

5997. An ideal flow of any fluid must satisfy ___________________?
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A. continuity equation

B. Bernoullis theorem

C. boundary layer theory

D. Newtons law of viscosity

E. Pascal law

5998. Rain drops are spherical because of____________________?
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A. viscosity

B. atmospheric pressure

C. none of the above

D. air resistance

E. surface tension forces
5999. The rise or depression of liquid in a tube due to surface tension wim increase in size of tube will_______________?
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A. increase

B. decrease

C. unpredictable

D. remain unaffected

E. may increase or decrease depending on the characteristics of liquid

6000. Which of the following manometer has highest sensitivity __________________?
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A. U-tube with mercury

B. U-tube with water

C. inclined U-tube

D. micro-manometer with water

E. displacement type