ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Question # 1

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

Question # 2

The smooth or steady streamline flow is known as

Question # 3

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 4

The body passing a viscous medium affected by:

Question # 5

Viscosity is defined as

Question # 6

Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:

Question # 7

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 8

Bernoulli's equation is based upon law of conversation

Question # 9

Above a certain velocity of a fluid is called

Question # 10

The application of Bernoulli's equation is

Question # 11

The velocity of falling raindrop attains limited value because of

Question # 12

Viscosity of water is ______ that of air but ___ that of plasma.

Question # 13

Which of the following options correctly states the equation of continuity for an ideal fluid?

Question # 14

A device used to measure the speed of liquid flow is known as

Question # 15

The irregular and unsteady flow of the fluid is called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
2 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
3 The internal pressure of the blood is
A. less than the external atmospheric pressure
B. greater than the external atmospheric pressure
C. equal to the external atmosphericpressure
D. none of them
4 In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called
A. Quadratic equation
B. Equation of discontinuity
C. Equation of continuity
D. None of the above
5 Stock's law holds for:
A. Motion through free space
B. Motion through viscous medium
C. Bodies of all shapes
D. None of these
6 The effect of friction between different layers of a flowing fluid is described in terms of
A. motion of fluid
B. nature of fluid
C. colour of fluid
D. viscosity of fluid
7 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
8 The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:
A. 10-16N
B. 10-14N
C. 10-12N
D. 10-10N
9 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
10 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less

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