ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Question # 1

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

Question # 2

Bernoulli's equation is important in the field of

Question # 3

Fire fighters have jet attached to the head of their water pipes in order to

Question # 4

The application of Bernoulli's equation is

Question # 5

Surface tension of water is due to

Question # 6

The equation of continuity
A1V1= A2V2is for the flow of

Question # 7

The flow of an ideal fluid is

Question # 8

A high concentration of red blood cells increases its viscosity from

Question # 9

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

Question # 10

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

Question # 11

In a normal healthy person the value of systolic pressure is

Question # 12

Rate of flow can be expressed in

Question # 13

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 14

A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
2 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above
3 When the velocity of a liquid flowing steadily in a tube increases, its pressure?
A. Decreases
B. Increases
C. Remains same
D. Zero
4 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
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 When weight of an object falling freely becomes equal to the drag force, then the body will move with
A. increasing speed
B. decreasing speed
C. constant speed
D. none of them
7 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
8 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow
9 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
10 The terminal velocity of a small size spherical body of radius R moving in a fluid varies as
A. R
B. R2
C. 1/R
D. (1/R)2

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