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

In a normal healthy person the value of systolic pressure is

Question # 2

The density of blood is nearly equal to that of

Question # 3

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

Question # 4

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

Question # 5

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 6

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 # 7

The blood pressure of a person

Question # 8

Liquids and gasses have

Question # 9

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 10

At high altitude the blood oozes out of the nose and ear because

Question # 11

The unit of viscosity is SI system is:

Question # 12

Viscosity is defined as

Question # 13

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 14

Rate of flow can be expressed in

Question # 15

What is another name for laminar flow?

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
A. 1.3 m/s
B. 1.6 m/s
C. 1.9 m/s
D. 2.2 m/s
2 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
3 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
4 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
5 Machine parts are jammed due to:
A. Increasing in viscosity of lubricant
B. Decreasing in viscosity of lubricant
C. Decreasing in surface tension of lubricant
D. None of these
6 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
7 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
8 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
9 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
10 The term Brownian movement refers to
A. irregular motions of small particles suspended in a fluid
B. convection currents in a liquid or gas
C. convection currents in a gas but not in a liquid
D. the stretching of a body beyond its elastic limit

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