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 value of viscosity of a fluid is dependent on (at constant temperature)

Question # 2

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

Question # 3

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 4

Stock's law holds for:

Question # 5

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 6

In a normal healthy person the value of diastolic pressure is

Question # 7

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

Question # 8

The equation of continuity
A1V1= A2V2is for the flow of

Question # 9

N s m-2is unit of:

Question # 10

How much force is required to slide one layer of the liquid over the other layer is measured by

Question # 11

Machine parts are jammed due to:

Question # 12

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

Question # 13

The resistance offered by a fluid to a solid moving inside it is called:

Question # 14

The irregular and unsteady flow of the fluid is called

Question # 15

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 In Bernoulli's theorem the relation between velocity and pressure is
A. Inverse
B. Direct
C. None of the above
D. Both a and b
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 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
5 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
6 In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called
A. Quadratic equation
B. Equation of discontinuity
C. Equation of continuity
D. None of the above
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 A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is
A. 125 J
B. 90 J
C. 160 J
D. 85 J
9 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
10 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
A. orifices
B. efflux
C. fluid
D. none of them

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