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

A body is floating in a liquid. The up thrust on the body is

Question # 2

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 3

Bernoulli's equation is based upon law of conversation

Question # 4

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 # 5

When the velocity of a liquid flowing steadily in a tube increases, its pressure?

Question # 6

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

Question # 7

In a normal healthy person the value of diastolic pressure is

Question # 8

The direction of the streamlines is the same as the direction of the

Question # 9

Bernoulli's equation is based upon law of conversation of

Question # 10

Bernoulli's equation is important in the field of

Question # 11

Machine parts are jammed due to:

Question # 12

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow

Question # 13

Viscosity is defined as

Question # 14

Glycerin has viscosity _____ the viscosity of water:

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity
A. v/A = constant
B. A/v = constant
C. Av = constant
D. None
2 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C
3 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
4 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these
5 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
6 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
7 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them
8 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
9 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
10 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow

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