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

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

Question # 2

Fog droplets are suspended in air when their weight is balanced by:

Question # 3

The fluid which is incompressible and non viscous is called

Question # 4

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

Question # 5

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

Question # 6

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 7

Viscosity is defined as

Question # 8

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

Question # 9

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

Question # 10

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

Question # 11

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 # 12

The velocity of falling raindrops attains limited value because of

Question # 13

Fluid friction is _____ the friction between two solid surfaces:

Question # 14

Machine parts are jammed due to:

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A device used to measure the speed of liquid flow is known as
A. barometer
B. speedometer
C. sphygmomanometer
D. venture-meter
2 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
3 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
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 According to slok's law, drag force depends on
A. Radius of the spherical body
B. Terminal velocity of body
C. Coefficient of viscosity
D. All of above
6 The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2
A. 20
B. 200
C. 2000
D. 20,000
7 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
8 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
9 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
10 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All

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