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

Viscosity is defined as

Question # 2

The velocity of falling raindrops attains limited value because of

Question # 3

Blood pressure is measured by the instrument

Question # 4

Above a certain velocity of a fluid is called

Question # 5

The irregular and unsteady flow of the fluid is called

Question # 6

Ball pen functions on the principle of

Question # 7

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 8

With increase of temperature, the viscosity of liquid and gases

Question # 9

The density of blood is nearly equal to that of

Question # 10

Matter is made up of very tiny particles called

Question # 11

The term Brownian movement refers to

Question # 12

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 # 13

Blood has a density

Question # 14

Surface tension of water is reduced by adding

Question # 15

The equation of continuity is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The smooth or steady streamline flow is known as
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
2 The flow of an ideal fluid is
A. streamline flow
B. incompressible flow
C. non-viscous
D. all of the above
3 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them
4 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
5 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
6 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
7 If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be
A. turbulent
B. streamline
C. abrupt
D. none of them
8 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
9 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
10 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

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