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

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

Question # 2

The fluid which is incompressible and non viscous is called

Question # 3

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

Question # 4

With increase of temperature, the viscosity of liquid and gases

Question # 5

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

During the steady flow, different streamlines

Question # 10

Viscosity is defined as

Question # 11

The equation of continuity
A1V1= A2V2is for the flow of

Question # 12

The smooth or steady streamline flow is known as

Question # 13

The body will move with terminal velocity when it acquires

Question # 14

The analysis of fluid motion becomes simplified by using

Question # 15

Fluid friction is _____ the friction between two solid surfaces:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
2 Bernoulli's equation is applicable for
A. turbulent flow
B. streamline flow
C. both (a) and (b)
D. all kinds of flows
3 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
4 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these
5 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
6 The terminal velocity of a small size spherical body of radius R moving in a fluid varies as
A. R
B. R2
C. 1/R
D. (1/R)2
7 When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:
A. FD-mg
B. Zero
C. mg-FD
D. None of these
8 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them
9 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
10 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow

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