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 upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

Question # 2

Substances that do not flow easily have

Question # 3

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

Question # 4

According to the Bernoulli's theorem the pressure velocity are

Question # 5

Viscosity of water is ______ that of air but ___ that of plasma.

Question # 6

Drag force increases if speed of the object moving through the fluid:

Question # 7

In a normal healthy person the value of systolic pressure is

Question # 8

When each particle of the fluid moves along a smoth path, this path is known as

Question # 9

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 10

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

Question # 11

Blood pressure is measured by the instrument

Question # 12

Viscosity is defined as

Question # 13

Matter is made up of very tiny particles called

Question # 14

Fluids resist force, This property is called

Question # 15

The fluid which is incompressible and non viscous is called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The mass of fluid passing through any cross-section per unit time is called
A. electric flux
B. magnetic flux
C. mass flux
D. none of them
2 In Bernoulli's theorem the relation between velocity and pressure is
A. Inverse
B. Direct
C. None of the above
D. Both a and b
3 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
4 Machine parts are jammed due to:
A. Increasing in viscosity of lubricant
B. Decreasing in viscosity of lubricant
C. Decreasing in surface tension of lubricant
D. None of these
5 When a fluid is in motion, its flow can be considered as
A. turbulent
B. streamline
C. either or them
D. neither of them
6 Which of the following options states the names of fluids in the order of increasing viscosity?
A. mercury, motor oil, methanol
B. methanol, mercury, motor oil
C. motor oil, mercury, methanol
D. methanol, motor oil, mercury
7 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
8 A device used to measure the speed of liquid flow is known as
A. barometer
B. speedometer
C. sphygmomanometer
D. venture-meter
9 Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Avoid wastage of water
C. Increase the velocity of water flowing out
D. Increase the volume of water flowing per second
10 Stoke;s law is not applicable when the speed of the object moving through a fluid is:
A. Zero
B. Small
C. Large
D. None of these

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