Properties of Fluids PYQs, GPSC Civil Engineering

Bulk modulus for ideal fluids is

A) Infinity

B) Unity

C) Zero

D) Any value less than one

A) Infinity


Surface tension of water

A) increases with decrease in temperature

B) decreases with decrease in temperature

C) is independent

D) none of the above

A) increases with decrease in temperature


The Standard temperature for reporting specific gravity as per Indian Standard is

A) 25°C

B) 30°C

C) 27°C

D) 11°C

C) 27°C


Fluids which do not follow the linear relationship between shear stress and rate of deformation are termed as _____ fluids.

A) Newtonian

B) Non-Newtonian

C) Dilatant

D) Ideal

B) Non-Newtonian


The velocity gradient in the transverse direction for a fluid flows equals to

A) The Pressure gradient

B) The rate of Shear strain

C) The stress at that point

D) The strain at that point

B) The rate of Shear strain


Stoke is the unit of

A) surface tension

B) viscosity

C) kinetic viscosity

D) dynamic viscosity

C) kinetic viscosity


Kinematic viscosity has the dimension as

A) MLT-2

B) ML-1T2

C) ML-1T-1

D) L2T-1

D) L2T-1


The unit of kinematic viscosity is

A) gm/cm-sec2

B) dyne-sec/cm2

C) gm/cm2-sec

D) cm2/sec

D) cm2/sec


At 20°C temperature and standard pressure condition, kinematic viscosity of air would be approximately _____ times that of water

A) 20

B) 8

C) 15

D) 12

C) 15


The dimensions of surface tension σ are

A) ML–1

B) L2T–1

C) ML–1T–2

D) MT–2

D) MT–2


Surface tension is expressed in

A) N/m

B) N/m2

C) N2/m

D) N/m3

A) N/m


Hot wire anemometer is used for measuring which of the following parameter

A) Turbulence

B) Pressure

C) Mean velocity

D) Discharge

A) Turbulence


Cavitation is caused by

A) impurities

B) environmental changes

C) high pressure

D) high vacuum

D) high vacuum


Choose the best option for the Newtonian fluid

A) Frictionless and incompressible

B) Viscosity is invariant with shear stress

C) Viscosity decreases at higher shear stress

D) Viscosity increases at higher shear stress

B) Viscosity is invariant with shear stress


Cavitation occurs in a pipe flow when

A) the pressure becomes negative

B) the pressure is very high

C) the pressure is equal to vapour pressure

D) the fluid in the pipe is a gas

C) the pressure is equal to vapour pressure


Practice Test On Properties of Fluids PYQs, Fluid Mechanics PYQs (Section 1-1)

GPSC Civil Engineering Previous Year Asked Questions

1 / 15

Surface tension of water

2 / 15

The Standard temperature for reporting specific gravity as per Indian Standard is

3 / 15

Choose the best option for the Newtonian fluid

4 / 15

Stoke is the unit of

5 / 15

Kinematic viscosity has the dimension as

6 / 15

Bulk modulus for ideal fluids is

7 / 15

Fluids which do not follow the linear relationship between shear stress and rate of deformation are termed as _____ fluids.

8 / 15

The unit of kinematic viscosity is

9 / 15

Hot wire anemometer is used for measuring which of the following parameter

10 / 15

Cavitation is caused by

11 / 15

At 20°C temperature and standard pressure condition, kinematic viscosity of air would be approximately _____ times that of water

12 / 15

The velocity gradient in the transverse direction for a fluid flows equals to

13 / 15

The dimensions of surface tension σ are

14 / 15

Surface tension is expressed in

15 / 15

Cavitation occurs in a pipe flow when

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