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

Stock's law holds for:

Question # 2

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

Question # 3

The electrical forces between the molecules of a liquid are

Question # 4

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

Question # 5

The law of conservation of mass gives us the

Question # 6

In a normal healthy person the value of systolic pressure is

Question # 7

When a fluid is in motion, its flow can be considered as

Question # 8

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

Question # 9

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 10

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

Question # 11

According to Stoke's law, drag force depends on

Question # 12

The study of fluid in motion basically involves law of conservation of:

Question # 13

Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to

Question # 14

Where the streamlines are very far apart from each other, the pressure will be

Question # 15

Blood pressure is measured by the instrument

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Deep water almost runs still when surface water flow in rivers. What does it explains
A. Magnus effect
B. Equation of continuity
C. Surface energy
D. Bernoulli's equation
2 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these
3 Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Avoid wastage of water
C. Increase the velocity of water flowing out
D. Increase the volume of water flowing per second
4 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
5 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:
A. Not affected due to its size
B. Twice that of small size ball
C. Four times that of small size ball
D. 1/4th of that of small size ball
6 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
7 With increase of temperature, the viscosity of liquid and gases
A. Increases for both
B. Decreases for both
C. Increases for liquids and decreases for gases
D. Decreases for liquids and increases for gases
8 One torr is equal to
A. 13.33 N/m2
B. 760 N/m2
C. 760 mm Hg
D. 133.3 N/m2
9 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
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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