civil engineering MCQs – Page 298

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 Review each marked answer and report any item that may be outdated or unclear.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
5941. If no resistance is encountered by displacement, such a substance is known as___________________?
comments icon0

A. gas

B. fluid

C. ideal fluid

D. perfect solid

E. water

5942. The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to _________________?
comments icon0

A. 1000

B. 21,000.

C. 2700

D. 2100

E. 10,000

5943. The normal stress in a fluid will be constant in all directions at a point only if_________________?
comments icon0
A. it is at rest.

B. it is frictionless

C. it is incompressible

D. it has zero viscosity

E. it has uniform viscosity

5944. An ideal flow of any fluid must fulfill the following______________?
comments icon0
A. Continuity equation

B. Newtons law of viscosity

C. Boundary layer theory

D. Pascal law

E. Newtons law of motion

5945. Property of a fluid by which its own molecules are attracted is called ________________?
comments icon0

A. viscosity

B. surface tension

C. adhesion

D. compressibility

E. cohesion
5946. The specific weight of water is 1000 kg/m _______________?
comments icon0

A. at mean sea level

B. all the above

C. none of the above.

D. at 4C temperature

E. at norma] pressure of 760 mm

5947. Specific weight of sea water is more that of pure water because it contains ________________?
comments icon0

A. dissolved air

B. heavy water

C. suspended matter

D. all of the above

E. dissolved salt

5948. The buoyancy depends on__________________?
comments icon0

A. depth of immersion

B. pressure of the liquid displaced

C. viscosity of the liquid

D. none of the above.

E. mass of liquid displaced
5949. The value of mass density in kgsecVm4 for water at 0C is_______________?
comments icon0

A. 100

B. 1

C. 1000

D. 101.9

E. 91

5950. Alcohol is used in manometer, because___________________?
comments icon0

A. ose the wrong statement ?

5951. Fluid is a substance which offers no resistance to change of_________________?
comments icon0

A. pressure

B. flow

C. shape

D. volume

E. temperature

5952. Units of surface tension are_________________?
comments icon0

A. energy/unit area

B. distance

C. both of the above

D. it has no units

E. none of the above

5953. 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_________________?
comments icon0

A. unpredictable

B. lower than the surface of liquid

C. none of the above

D. the same as the surface of liquid

E. higher than the surface of liquid

5954. Liquids________________?
comments icon0

A. occupy definite volume

B. GO are not viscous

C. none of the above

D. cannot be compressed

E. are not affected by change in pressure and temperature

5955. Fluid is a substance that_______________?
comments icon0

A. has the same shear stress.at a point regardless of its motion

B. flows

C. always expands until it fills any container

D. cannot be subjected to shear forces

E. cannot remain at rest under action of any shear force
5956. A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of elasticity of liquid is _________________?
comments icon0

A. 40 x 105 kg/cm2

B. none of the above

C. 40 x 106 kg/cm2

D. 4000 kg/cm2

E. 400 kg/cm2

5957. Specific weight of water in S.I. units is equal to_________________?
comments icon0

A. 9.81 N/m3

B. 9.81 xlO3 N/m3

C. 1000 N/m3

D. 9.81 xlO6N/m3

E. 10000 N/m3

5958. Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called________________?
comments icon0

A. cohesion

B. surface tension

C. viscosity

D. adhesion

E. compressibility

5959. Alcohol is used in manometers because_____________________?
comments icon0

A. is provides suitable meniscus

B. it has low vapour pressure

C. it is clearly visible

D. it has low surface tension

E. it can provide longer column due to low density
5960. Mercury does not wet glass. This is due to property of liquid known as_________________?
comments icon0

A. viscosity

B. compressibility

C. adhesion

D. cohesion

E. surface tension