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

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 # 2

Where the streamlines are very far apart from each other, the pressure will be

Question # 3

When each particle of the fluid moves along a smoth path, this path is known as

Question # 4

The velocity of falling raindrops attains limited value because of

Question # 5

According to slok's law, drag force depends on

Question # 6

Substances that flow easily have

Question # 7

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

Question # 8

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

Question # 9

A massive object falls through a fluid:

Question # 10

The analysis of fluid motion becomes simplified by using

Question # 11

An object moving through a fluid experiences a retarding force called a

Question # 12

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

Question # 13

N s m-2is unit of:

Question # 14

Glycerin has viscosity _____ the viscosity of water:

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
2 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
A. water contains hydrogen atoms, air does not
B. water molecules are smaller than molecules in the air
C. water molecules are smaller than molecules in the air
D. surface tension of the water prevents it from
3 How much force is required to slide one layer of the liquid over the other layer is measured by
A. friction
B. density
C. viscosity
D. resistivity
4 Which of the following is a characteristic of an ideal fluid?
A. it is non-viscous
B. it is incompressible
C. it's motion is steady
D. all of the above
5 The law of conservation of mass gives us the
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
6 0.10 cm can be written as:
A. 1.0 x 10-2m
B. 1.0 x 10-3cm
C. 1.0 x 10-4cm
D. 1. x 10-4m
7 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
8 In deriving the Bernoulli's equation, we assume that the fluid is
A. incompressible
B. no viscous
C. flows in a steady manner
D. all of them
9 The effect of friction between different layers of a flowing fluid is described in terms of
A. motion of fluid
B. nature of fluid
C. colour of fluid
D. viscosity of fluid
10 Pressure exerted by a gas on the walls of its container in due to
A. adhesion between the gas molecules and the container
B. cohesion between the gas molecules and the container
C. collision between the gas molecules and the container
D. surface tension of the gas

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