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

Internal friction of fluid is called

Question # 2

Above a certain velocity of a fluid is called

Question # 3

The velocity of falling raindrops attains limited value because of

Question # 4

In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called

Question # 5

The electrical forces between the molecules of a liquid are

Question # 6

According to slok's law, drag force depends on

Question # 7

Drag force increases if speed of the object moving through the fluid:

Question # 8

Substances that flow easily have

Question # 9

The law of conservation of energy gives us

Question # 10

The smooth or steady stream-line flow is know as

Question # 11

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

Question # 12

The application of Bernoulli's equation is

Question # 13

A body is floating in a liquid. The up thrust on the body is

Question # 14

Blood pressure is measured by the instrument

Question # 15

In a normal healthy person the value of diastolic pressure is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is
A. 125 J
B. 90 J
C. 160 J
D. 85 J
2 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
3 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them
4 How much force is required to slide one layer of the liquid over the other layer is measured by
A. friction
B. density
C. viscosity
D. resistivity
5 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them
6 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
7 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
8 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
9 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
10 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them

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