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

The irregular and unsteady flow of the fluid is called

Question # 3

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

Question # 4

The rain drop falling from the sky reach the ground with

Question # 5

The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:

Question # 6

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

Question # 7

With the increase of temperature viscosity

Question # 8

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

Question # 9

0.10 cm can be written as:

Question # 10

In case of streamed lined flow of liquid, the loss of energy is

Question # 11

A high concentration of red blood cells increases its viscosity from

Question # 12

The fluid which is incompressible and non viscous is called

Question # 13

Liquids and gasses have

Question # 14

Bernoulli's equation is based upon law of conversation of

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 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
2 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
3 Blood vessels can be stretch like rubber, therefore they are
A. rigid
B. hard
C. very thick
D. not rigid
4 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
5 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above
6 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
7 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
8 When the velocity of a liquid flowing steadily in a tube increases, its pressure?
A. Decreases
B. Increases
C. Remains same
D. Zero
9 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them
10 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved

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