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

The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the

Question # 2

At the starting point of the free fall motion of an object, its acceleration will be

Question # 3

The body will move with terminal velocity when it acquires

Question # 4

The analysis of fluid motion becomes simplified by using

Question # 5

Drag force increases if speed of the object moving through the fluid:

Question # 6

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

Question # 7

A device used to measure the speed of liquid flow is known as

Question # 8

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

Question # 9

Fluid friction is _____ the friction between two solid surfaces:

Question # 10

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

Question # 11

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Question # 12

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

Question # 13

The property of fluids due to which they resist their own flow is called:

Question # 14

When a water droplet falling freely through air, the drag force on water droplet increases with th

Question # 15

The smooth or steady streamline flow is known as

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The rain drop falling from the sky reach the ground with
A. Constant terminal velocity
B. Constant gravitational acceleration
C. Variable acceleration
D. acceleration greater than g
2 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
3 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
4 The maximum drag force on a falling sphere is 9.8 N, it weight is
A. 1 N
B. 9.8 N
C. 4.9 N
D. Cannot be calculated
5 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
6 The terminal velocity of water droplet of radius 1 x 10-4m and desity 1000 kg m-3descending through air of viscosity 19 x 10-6kg. m-1 s-1 is
A. 2.5 ms-1
B. 3.2 ms-1
C. 4.3 ms-1
D. 1.1 ms-1
7 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
A. 0.1 m
B. 0.2 m
C. 0.98 m
D. Full length of the capillary tube
8 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
9 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
10 When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called
A. incompressible
B. compressible
C. viscous
D. non viscous

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