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 fluid is incompressible, if itsdensity is

Question # 2

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

Question # 3

At high altitude the blood oozes out of the nose and ear because

Question # 4

Bernoulli's equation is based upon law of conversation

Question # 5

The electrical forces between the molecules of a liquid are

Question # 6

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

Question # 7

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

Question # 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

Question # 9

The equation of continuity is

Question # 10

The law of conservation of energy gives us

Question # 11

The velocity of falling raindrop attains limited value because of

Question # 12

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 13

The value of viscosity of a fluid is dependent on (at constant temperature)

Question # 14

The equation of continuity
A1V1= A2V2is for the flow of

Question # 15

A body is moving through a viscous medium eventually comes to rest because of:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
2 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
3 The electrical forces between the molecules of a liquid are
A. Repulsive
B. Attractive
C. Both A and B
D. None
4 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
5 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
6 The maximum drag force on a falling sphere is 9.8 N, it weight is
A. 1 N
B. 9.8 N
C. 4.9 N
D. Cannot be calculated
7 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
8 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
A. turbulent
B. streamline
C. abrupt
D. none of them
9 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
10 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes

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