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

The pressure will be low where the speed of the fluid is

Question # 2

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

Question # 3

Which of the following options correctly states the equation of continuity for an ideal fluid?

Question # 4

The equation of continuity is

Question # 5

In a normal healthy person the value of systolic pressure is

Question # 6

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 # 7

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

Question # 8

Above a certain velocity of a fluid is called

Question # 9

The property of fluids due to which they resist their own flow is called:

Question # 10

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

Question # 11

Bernoulli's equation is based upon law of conversation

Question # 12

Ball pen functions on the principle of

Question # 13

The smooth or steady stream-line flow is know as

Question # 14

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

Question # 15

Liquids and gasses have

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 A body is floating in a liquid. The up thrust on the body is
A. Equal to weight of liquid displaced
B. Zero
C. Less than the weight of liquid displaced
D. Weight of body-weight of liquid displaced
3 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
4 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them
5 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)
6 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
7 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
8 The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is
A. stethoscope
B. thermometer
C. manometer
D. barometer
9 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them
10 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None

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