ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

The direction of the streamlines is the same as the direction of the

Question # 2

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:

Question # 3

Which of the following is a characteristic of an ideal fluid?

Question # 4

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 5

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 6

The resistance offered by a fluid to a solid moving inside it is called:

Question # 7

Machine parts are jammed due to:

Question # 8

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 9

0.10 cm can be written as:

Question # 10

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

Question # 11

A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is

Question # 12

In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.

Question # 13

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

Question # 14

According to the Bernoulli's theorem the pressure velocity are

Question # 15

When the velocity of a liquid flowing steadily in a tube increases, its pressure?

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 When a fluid is in motion, its flow can be considered as
A. turbulent
B. streamline
C. either or them
D. neither of them
2 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
3 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
4 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
5 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)
6 The analysis of fluid motion becomes simplified by using
A. law of conservation
B. law of conservation of energy
C. both of them
D. none of them
7 When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called
A. incompressible
B. compressible
C. viscous
D. non viscous
8 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
9 The dimensions of viscosity are:
A. M2L-1T-2
B. M-1L1T-1
C. M-1L-1T
D. ML-1T-1
10 In deriving the Bernoulli's equation, we assume that the fluid is
A. incompressible
B. no viscous
C. flows in a steady manner
D. all of them

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