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

The study of fluid in motion basically involves law of conservation of:

Question # 2

What is another name for laminar flow?

Question # 3

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

Question # 4

In a normal healthy person the value of diastolic pressure is

Question # 5

Unit of viscosity is:

Question # 6

N s m-2is unit of:

Question # 7

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

Question # 8

The unit of viscosity is SI system is:

Question # 9

An object moving through a fluid experiences a retarding force called a

Question # 10

Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?

Question # 11

Bernoulli's equation is based upon law of conversation of

Question # 12

The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately

Question # 13

In case of streamed lined flow of liquid, the loss of energy is

Question # 14

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
3 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
4 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
5 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
6 At low speeds, the drag force is
A. proportional to speed
B. inversely proportional to speed
C. not simply proportional to 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 Stock's law holds for:
A. Motion through free space
B. Motion through viscous medium
C. Bodies of all shapes
D. None of these
9 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
10 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity

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