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

The blood pressure of a person

Question # 2

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

Question # 3

Bernoulli's equation is based upon law of conversation

Question # 4

Rate of flow can be expressed in

Question # 5

The fluid is incompressible, if itsdensity is

Question # 6

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

Question # 7

Bernoulli's equation is important in the field of

Question # 8

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

Question # 9

The mass of fluid passing through any cross-section per unit time is called

Question # 10

During the steady flow, different streamlines

Question # 11

At high speed, fluid friction _____ and fuel consumption ___,:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The pressure will change in the pipe, as the fluid moves through that pipe of varying
A. cross-section
B. height
C. none of them
D. both of them
2 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
3 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
4 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
5 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
6 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
7 The analysis of fluid motion becomes simplified by using
A. law of conservation
B. law of conservation of energy
C. both of them
D. none of them
8 Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?
A. potential energy
B. pressure energy
C. strain energy
D. (a) and (b) only
9 Surface tension of water is reduced by adding
A. Detergents
B. Camphor
C. Plastic
D. Both A and B
10 At high speed, fluid friction _____ and fuel consumption ___,:
A. Increases, decreases
B. Increases, increases
C. Decreases, increases
D. None of these

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