ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

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

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 # 2

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

Question # 3

A high concentration of red blood cells increases its viscosity from

Question # 4

With increase of temperature, the viscosity of liquid and gases

Question # 5

The law of conservation of mass gives us the

Question # 6

The term Brownian movement refers to

Question # 7

In case of streamed lined flow of liquid, the loss of energy is

Question # 8

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

Question # 9

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

Question # 10

The value for systolic blood pressure for a normal healthy person is

Question # 11

The equation of continuity is

Question # 12

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

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

The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately

Question # 15

In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Stock's law holds for:
A. Motion through free space
B. Motion through viscous medium
C. Bodies of all shapes
D. None of these
2 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
3 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes
4 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
5 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
6 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
7 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
8 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
9 In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.
A. Streamline, cannot
B. Turbulent, cannot
C. Streamline, can
D. None of these
10 Internal friction of fluid is called
A. Surface tension
B. Viscosity
C. Resistance
D. Cohesive force

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