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

Rate of flow can be expressed in

Question # 2

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

Question # 3

High speed meteors rushing through air reduces to ashes because of:

Question # 4

Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:

Question # 5

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

Question # 6

The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is

Question # 7

A high concentration of red blood cells increases its viscosity from

Question # 8

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

Question # 9

Viscosity is defined as

Question # 10

In a normal healthy person the value of diastolic pressure is

Question # 11

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

Question # 12

In case of streamed lined flow of liquid, the loss of energy is

Question # 13

Bernoulli's equation is based upon law of conversation

Question # 14

The analysis of fluid motion becomes simplified by using

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A body is floating in a liquid. The up thrust on the body is
A. Equal to weight of liquid displaced
B. Zero
C. Less than the weight of liquid displaced
D. Weight of body-weight of liquid displaced
2 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
C. Viscosity
D. None of these
3 The equation of continuity is
A. A1A2 = V1V2
B. A1/V1 =A2/V2
C. V1/A1=V2/A2
D. A1V1 =A2V2
4 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
5 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
6 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
7 When each particle of the fluid moves along a smoth path, this path is known as
A. straight path
B. smooth path
C. haphazard path
D. steamline
8 If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity
A. v/A = constant
B. A/v = constant
C. Av = constant
D. None
9 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these
10 Stock's law holds for:
A. Motion through free space
B. Motion through viscous medium
C. Bodies of all shapes
D. None of these

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