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

Which of the following has the greatest coefficient of viscosity?

Question # 2

The un-steady streamline flow is called

Question # 3

A device used to measure the speed of liquid flow is known as

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

In a normal healthy person the value of systolic pressure is

Question # 6

The fluid which is incompressible and non viscous is called

Question # 7

Unit of viscosity is:

Question # 8

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

Question # 9

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

Question # 10

N s m-2is unit of:

Question # 11

In a normal healthy person the value of diastolic pressure is

Question # 12

Fluid friction is _____ the friction between two solid surfaces:

Question # 13

The electrical forces between the molecules of a liquid are

Question # 14

The density of blood is nearly equal to that of

Question # 15

Matter is made up of very tiny particles called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
2 The unit of viscosity is SI system is:
A. Kg-1m sec-1
B. Kgm-1 sec-1
C. Kg-1m-1 sec
D. None of these
3 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
4 Unit of viscosity is:
A. Kg m-1sec-1
B. N s m-2
C. J s m-3
D. All of these
5 According to slok's law, drag force depends on
A. Radius of the spherical body
B. Terminal velocity of body
C. Coefficient of viscosity
D. All of above
6 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
7 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
8 In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called
A. Quadratic equation
B. Equation of discontinuity
C. Equation of continuity
D. None of the above
9 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
10 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

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