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

N s m-2is unit of:

Question # 2

The SI unit of viscosity is

Question # 3

One torr is equal to

Question # 4

The velocity of falling raindrops attains limited value because of

Question # 5

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

Question # 6

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

Question # 7

The density of blood is nearly equal to that of

Question # 8

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called

Question # 9

The fluid which is incompressible and non viscous is called

Question # 10

When the speed of a body in a fluid increases then the drag force

Question # 11

The equation of continuity
A1V1= A2V2is for the flow of

Question # 12

A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that

Question # 13

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

Question # 14

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

Question # 15

A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The electrical forces between the molecules of a liquid are
A. Repulsive
B. Attractive
C. Both A and B
D. None
2 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
3 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All
4 When each particle of the fluid moves along a smoth path, this path is known as
A. straight path
B. smooth path
C. haphazard path
D. steamline
5 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
6 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
7 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them
8 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
9 The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:
A. More, lesser
B. Lesser, more
C. Both A and B
D. Lesser, lesser
10 One torr is equal to
A. 13.33 N/m2
B. 760 N/m2
C. 760 mm Hg
D. 133.3 N/m2

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