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

The irregular and unsteady flow of the fluid is called

Question # 2

The blood pressure of a person

Question # 3

Above a certain velocity of a fluid is called

Question # 4

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

Question # 5

Surface tension of water is reduced by adding

Question # 6

At low speeds, the drag force is

Question # 7

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 8

With increase of temperature, the viscosity of liquid and gases

Question # 9

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 10

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 11

When the speed of a body in a fluid increases then the drag force

Question # 12

When each particle of the fluid moves along a smoth path, this path is known as

Question # 13

The smooth or steady streamline flow is known as

Question # 14

The equation of continuity is

Question # 15

The internal pressure of the blood is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be
A. turbulent
B. streamline
C. abrupt
D. none of them
2 A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is
A. 5000 cms-1
B. 500 cms-1
C. 50 cms-1
D. 0.5 cm/s
3 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them
4 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
5 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
6 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
7 The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:
A. 10-16N
B. 10-14N
C. 10-12N
D. 10-10N
8 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
9 The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2
A. 20
B. 200
C. 2000
D. 20,000
10 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them

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