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

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

Question # 2

Glycerin has viscosity _____ the viscosity of water:

Question # 3

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

Question # 4

The body will move with terminal velocity when it acquires

Question # 5

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

Question # 6

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 7

A flowing liquid possess

Question # 8

Density of fluid is defined as:

Question # 9

When the speed of a body in a fluid increases then the drag force

Question # 10

Fluid friction is _____ the friction between two solid surfaces:

Question # 11

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

Question # 12

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?

Question # 13

Pressure exerted by a gas on the walls of its container in due to

Question # 14

When weight of an object falling freely becomes equal to the drag force, then the body will move with

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 At low speeds, the drag force is
A. proportional to speed
B. inversely proportional to speed
C. not simply proportional to speed
D. none of them
2 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
3 If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term
A. P
B. 1/2 fv2
C. pgh
D. none of them
4 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
5 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
6 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
7 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
8 If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be
A. 1 cm
B. 2 cm
C. 8 cm
D. None
9 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar
10 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

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