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

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

Question # 2

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

Question # 3

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

Question # 4

The blood pressure of a person

Question # 5

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 6

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 7

The application of Bernoulli's equation is

Question # 8

The body passing a viscous medium affected by:

Question # 9

When the different streamlines cannot cross each other, then this condition is known as

Question # 10

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

Question # 11

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

Question # 12

Unit of viscosity is:

Question # 13

Two water pipes of diameters 4 cm and 8 cm are connected with a supply line. The velocity of flow of water in the pipe 4 cm diameter is

Question # 14

In Bernoulli's theorem the relation between velocity and pressure is

Question # 15

What is another name for laminar flow?

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be
A. low
B. zero
C. high
D. all of them
2 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
3 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
4 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
5 In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is
A. Independent of h
B. Proportional to h1/2
C. Proportional to h
D. Proportional to h2
6 One torr is equal to
A. 13.33 N/m2
B. 760 N/m2
C. 760 mm Hg
D. 133.3 N/m2
7 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
8 The equation of continuity
A1V1= A2V2is for the flow of
A. an ideal fluid
B. an incompressible fluid
C. a non visconcous fluid
D. all of the above
9 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
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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