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

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

Question # 2

Bernoulli's equation is based upon law of conservation

Question # 3

The unit of viscosity is SI system is:

Question # 4

The property of fluids due to which they resist their own flow is called:

Question # 5

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

Question # 6

Which of the following is a characteristic of an ideal fluid?

Question # 7

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

Question # 8

Fog droplets are suspended in air when their weight is balanced by:

Question # 9

The mass of fluid passing through any cross-section per unit time is called

Question # 10

The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is

Question # 11

Bernoulli's equation is based upon law of conversation

Question # 12

The resistance offered by a fluid to a solid moving inside it is called:

Question # 13

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

Question # 14

High speed meteors rushing through air reduces to ashes because of:

Question # 15

Bernoulli's equation is important in the field of

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Substances that do not flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
2 The flow of an ideal fluid is
A. streamline flow
B. incompressible flow
C. non-viscous
D. all of the above
3 The internal pressure of the blood is
A. less than the external atmospheric pressure
B. greater than the external atmospheric pressure
C. equal to the external atmosphericpressure
D. none of them
4 The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is
A. stethoscope
B. thermometer
C. manometer
D. barometer
5 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
6 The effect of friction between different layers of a flowing fluid is described in terms of
A. motion of fluid
B. nature of fluid
C. colour of fluid
D. viscosity of fluid
7 Blood vessels can be stretch like rubber, therefore they are
A. rigid
B. hard
C. very thick
D. not rigid
8 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
9 Which of the following options correctly states the equation of continuity for an ideal fluid?
A. A1A2= V1V2
B. A1/A2= V2/V1
C. A1/A2= V1/V2
D. none of the above
10 0.10 cm can be written as:
A. 1.0 x 10-2m
B. 1.0 x 10-3cm
C. 1.0 x 10-4cm
D. 1. x 10-4m

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