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 analysis of fluid motion becomes simplified by using

Question # 2

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

Question # 3

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

Question # 4

Fluid friction is _____ the friction between two solid surfaces:

Question # 5

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 # 6

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Question # 7

Liquids and gasses have

Question # 8

The density of blood is nearly equal to that of

Question # 9

Matter is made up of very tiny particles called

Question # 10

In a normal healthy person the value of diastolic pressure is

Question # 11

The equation of continuity
A1V1= A2V2is for the flow of

Question # 12

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

Question # 13

The fluid which is incompressible and non viscous is called

Question # 14

Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:

Question # 15

When a fluid is in motion, its flow can be considered as

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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 In deriving the Bernoulli's equation, we assume that the fluid is
A. incompressible
B. no viscous
C. flows in a steady manner
D. all of them
3 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
4 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above
5 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
6 A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is
A. 50 m/s
B. 20 m/s
C. 40 cm/s
D. 5 cm/s
7 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
8 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
9 The electrical forces between the molecules of a liquid are
A. Repulsive
B. Attractive
C. Both A and B
D. None
10 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
A. 20
B. 200
C. 2000
D. 20,000

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