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

Where the streamlines are very far apart from each other, the pressure will be

Question # 2

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

Question # 3

Machine parts are jammed due to:

Question # 4

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 # 5

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

Question # 6

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 7

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

Question # 8

When the velocity of a liquid flowing steadily in a tube increases, its pressure?

Question # 9

The velocity of falling raindrops attains limited value because of

Question # 10

N s m-2is unit of:

Question # 11

Which of the following has the greatest coefficient of viscosity?

Question # 12

Fluids resist force, This property is called

Question # 13

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 # 14

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

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar
2 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
3 In a normal healthy person the value of diastolic pressure is
A. 75 - 80 torr
B. 100 torr
C. 120 torr
D. none of them
4 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
5 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
6 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
7 Under normal circumstances, the volume of blood is sufficient to keep the vessels
A. flatted for all times
B. inflated for all times
C. inflated for small times
D. none of them
8 The mass of fluid passing through any cross-section per unit time is called
A. electric flux
B. magnetic flux
C. mass flux
D. none of them
9 When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called
A. incompressible
B. compressible
C. viscous
D. non viscous
10 When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:
A. Starts increasing
B. Starts decreasing
C. Becomes constant
D. Is called escape velocity

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