wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

TP MCQ Quiz 20th May 2021

Total questions: 26

Worksheet time: 13mins

Name
Class
Date
1.

The relationship between the shear stress and shear rate in the real fluids are part of ____________ .

a)

Non Newtonian behaviour

b)

Newtonian behaviour

c)

Rheological behaviour

d)

None of these

2.

The fluids which obey Newton’s law of viscosity are called _____________ fluids

a)

Non Newtonian fluid

b)

Newtonian fluid

c)

Both of these

d)

None of above

3.

If the shear stress is dependent on time under constant shear rate are called as ___________ .

a)

Shear dependent fluids


b)

Time dependent fluids

c)

All of the above

d)

None of the above

4.

Drilling mud, toothpaste, sewage sludge, chocolate mixture, greases, soap, paper pulp are the examples of _____________________ .

a)

Di latent fluids

b)

Pseudo plastic fluids

c)

Bingham plastic fluids

d)

Reopectic fluids

5.

These fluids exhibit the behaviour of increase in shear stress with the time at a constant rate of shear are called ____________.

a)

Dilatent fluids

b)

Rheopectic fluids

c)

Thixotropic fluids

d)

None of above

6.

The viscosity of liquids is generally much greater than those of gases. The liquid viscosity decrease significantly when the temperature ___________ .

a)

increases

b)

decreases

c)

does not change

d)

None of above

7.

At high pressure, gas viscosity ___________ with the increase in pressure especially near the critical point.

a)

Does not change

b)

Increases

c)

Decreases

d)

None of these

8.

The viscosity of the liquids increases with the pressure, but the effect is generally insignificant at pressure less than _____________ .

a)

10 atmosphere

b)

20 atmosphere

c)

40 atmosphere

d)

50 atmosphere

9.

This expression for the viscosity was obtained by Maxwell in 1860. This equation shows that viscosity of gases is proportional to the ____________ the temperature.

a)

square of

b)

square root of

c)

Two third of

d)

one fourth of

10.

At fluid-solid interfaces, the fluid velocity equals to the velocity with which the ______________ , that is, the fluid is assumed to stick to any solid surfaces with which it is in contact.

a)

fluid is moving

b)

surface itself is moving

c)

Both of these

d)

None of these

11.

At gas-liquid interfaces, the momentum flux in the liquid phase is assumed to be ______________. It means the velocity gradient is nearly equal to zero.

a)

Constant

b)

Zero

c)

Unity

d)

None of these

12.

The Hagen-Poiseuille equation gives the relationship between ___________ . This equation is applicable only for laminar flow where the value of Reynold’s number is less than 2100.

a)

mass flow rate and volumetric flow rate

b)

volume rate of flow and pressure drop.

c)

Pressure and temperature

d)

None of above

13.

Hagen-Poiseuille equation gives the relationship between volume rate of flow and radius of circular pipe as, Volume rate of flow is proportional to ____________

a)

R4

b)

R2

c)

R

d)

R3

14.

A Newtonian fluid is defined as the fluid which

a)

Obeys Hook’s law

b)

Is compressible

c)

Obeys Newton’s law of viscosity

d)

Is incompressible

15.

The dynamic viscosity of a liquid is 1.2 × 10-4 Ns/m2, whereas, the density is 600 kg/m3. The kinematic viscosity in m2/s is

a)

72 × 10-3

b)

20 × 10-8

c)

7.2 × 103

d)

70 × 106

16.

The terminal velocity of a small sphere settling in a viscous fluid varies as the ______________ .

a)

inverse square of the diameter


b)

square of the difference in specific weights of solid & fluid

c)

inverse of the fluid viscosity

d)

first power of its diameter

17.

The velocity profile for turbulent flow through a closed conduit is ____________ .

a)

logarithmic

b)

linear

c)

hyperbolic

d)

parabolic

18.

Applying a pressure drop across a capillary results in a volumetric flow rate ‘Q’ under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is _____________ .

a)

Q/8

b)

Q/16

c)

Q/4

d)

Q/2

19.

Where does the maximum stress occur in case of laminar flow of incompressible fluid in a closed conduit of diameter ‘D’?

a)

At the wall

b)

At D/8 from the wall

c)

At D/4 from the wall

d)

At the centre

20.

Velocity distribution for flow between two fixed parallel plates ___________ .

a)

varies parabolically across the section

b)

is constant over the entire cross-section

c)

is zero at the plates and increases linearly to the midplane

d)

none of these

21.

____________ is the ratio of drag force per unit projected area per product of the velocity head and density of fluid.

a)

Friction factor

b)

Drag

c)

Drag coefficient

d)

None of these

22.

Transport Phenomena subject covers which subjects ?

a)

Momentum transport

b)

Heat transport

c)

Mass transport

d)

All of the above

23.

Which book is useful for study of Transport Phenomena subject ?

a)

R.B. Bird, W.E. Stewart

b)

. C.O. Bennett, J.E. Mayers

c)

Alan S. Foust, Leonard A. Wenzel

d)

All of above

24.

Equation of Motion is obtained from....

a)

Mass balance

b)

Momentum balance

c)

Force balance

d)

None of these

25.

Kozney Carman equation is used when ....

a)

Reynolds number is less than one

b)

Reynolds number greater than 100

c)

Reynolds number is equal to 2100

d)

None of these

26.

Friction factor is ratio of Force exerted per unit projected area to the ....

a)

Velocity head * Density

b)

Velocity * Density

c)

Mass * Velocity

d)

None of these