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

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

Question # 2

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 3

The application of Bernoulli's equation is

Question # 4

The analysis of fluid motion becomes simplified by using

Question # 5

Bernoulli's equation is important in the field of

Question # 6

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 7

What is another name for laminar flow?

Question # 8

In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.

Question # 9

Viscosity is defined as

Question # 10

The equation of continuity is

Question # 11

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 12

If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term

Question # 13

The body passing a viscous medium affected by:

Question # 14

N s m-2is unit of:

Question # 15

Machine parts are jammed due to:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
3 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
4 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
5 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
6 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
7 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
8 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
9 When a fluid is in motion, its flow can be considered as
A. turbulent
B. streamline
C. either or them
D. neither of them
10 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them

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