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

What is another name for laminar flow?

Question # 2

Liquids and gasses have

Question # 3

When a water droplet falls through air, the net force on it is

Question # 4

Bernoulli's equation is based upon law of conversation

Question # 5

At high altitude the blood oozes out of the nose and ear because

Question # 6

Bernoulli's equation is based upon law of conversation of

Question # 7

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

Question # 8

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

Question # 9

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

Question # 10

The un-steady streamline flow is called

Question # 11

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

Question # 12

Viscosity is defined as

Question # 13

The electrical forces between the molecules of a liquid are

Question # 14

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

Question # 15

Blood pressure is measured by the instrument

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
C. Viscosity
D. None of these
2 The velocity of falling raindrop attains limited value because of
A. Up trust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
3 When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:
A. Starts increasing
B. Starts decreasing
C. Becomes constant
D. Is called escape velocity
4 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Air currents of the earth atmosphere
C. Surface tension effect
D. Viscous force exerted by air
5 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them
6 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
7 One torr is equal to
A. 13.33 N/m2
B. 760 N/m2
C. 760 mm Hg
D. 133.3 N/m2
8 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these
9 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
10 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)

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