ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

Try The MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

When the different streamlines cannot cross each other, then this condition is known as

Question # 2

Blood is an

Question # 3

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 4

Viscosity is defined as

Question # 5

The velocity of falling raindrops attains limited value because of

Question # 6

Blood pressure is measured by the instrument

Question # 7

Under normal circumstances, the volume of blood is sufficient to keep the vessels

Question # 8

Bernoulli's equation is based upon law of conversation

Question # 9

The term Brownian movement refers to

Question # 10

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

Question # 11

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 12

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 13

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 # 14

Which of the following options states the names of fluids in the order of increasing viscosity?

Question # 15

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?

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 When a water droplet falling freely through air, the drag force on water droplet increases with th
A. decrease in speed
B. increase in speed
C. pressure
D. none of them
2 If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity
A. v/A = constant
B. A/v = constant
C. Av = constant
D. None
3 Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?
A. fluid B
B. fluid A
C. both take the same time
D. not possible to determine from given information
4 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
5 The effect of friction between different layers of a flowing fluid is described in terms of
A. motion of fluid
B. nature of fluid
C. colour of fluid
D. viscosity of fluid
6 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
7 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
A. 200 m
B. 11000 m
C. 2000 m
D. 8000 m
8 In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.
A. Streamline, cannot
B. Turbulent, cannot
C. Streamline, can
D. None of these
9 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
10 Which of the following options correctly states the equation of continuity for an ideal fluid?
A. A1A2= V1V2
B. A1/A2= V2/V1
C. A1/A2= V1/V2
D. none of the above

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