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

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

Question # 2

The equation of continuity
A1V1= A2V2is for the flow of

Question # 3

Bernoulli's equation is based upon law of conversation

Question # 4

A body is moving through a viscous medium eventually comes to rest because of:

Question # 5

Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?

Question # 6

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 7

The law of conservation of energy gives us

Question # 8

Blood is an

Question # 9

How much force is required to slide one layer of the liquid over the other layer is measured by

Question # 10

The rain drop falling from the sky reach the ground with

Question # 11

Fog droplets are suspended in air when their weight is balanced by:

Question # 12

The pressure will be low where the speed of the fluid is

Question # 13

The property of fluids due to which they resist their own flow is called:

Question # 14

The flow of an ideal fluid is

Question # 15

The electrical forces between the molecules of a liquid are

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
2 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
3 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
4 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow
5 Under normal circumstances, the volume of blood is sufficient to keep the vessels
A. flatted for all times
B. inflated for all times
C. inflated for small times
D. none of them
6 When a water droplet falling freely through air, the drag force on water droplet increases with th
A. decrease in speed
B. increase in speed
C. pressure
D. none of them
7 The dimensions of viscosity are:
A. M2L-1T-2
B. M-1L1T-1
C. M-1L-1T
D. ML-1T-1
8 During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with
A. maximum speed
B. zero speed
C. maximum speed
D. none of them
9 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
A. 0.1 m
B. 0.2 m
C. 0.98 m
D. Full length of the capillary tube
10 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2

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