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

Bernoulli's equation is based upon law of conservation

Question # 2

Surface tension of water is reduced by adding

Question # 3

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

Question # 4

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Question # 5

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

Question # 6

The body will move with terminal velocity when it acquires

Question # 7

Stock's law holds for:

Question # 8

With increase of temperature, the viscosity of liquid and gases

Question # 9

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 10

When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

Question # 11

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

Question # 12

When the different streamlines cannot cross each other, then this condition is known as

Question # 13

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

Question # 14

Unit of viscosity is:

Question # 15

The rain drop falling from the sky reach the ground with

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
2 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
3 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
4 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
5 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them
6 A body is floating in a liquid. The up thrust on the body is
A. Equal to weight of liquid displaced
B. Zero
C. Less than the weight of liquid displaced
D. Weight of body-weight of liquid displaced
7 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
8 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
9 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
10 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above

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