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

The equation of continuity is

Question # 2

In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.

Question # 3

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

Question # 4

At high speed, fluid friction _____ and fuel consumption ___,:

Question # 5

The smooth or steady streamline flow is known as

Question # 6

An object moving through a fluid experiences a retarding force called a

Question # 7

In a normal healthy person the value of systolic pressure is

Question # 8

The electrical forces between the molecules of a liquid are

Question # 9

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

Question # 10

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 11

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

Question # 12

Fluids resist force, This property is called

Question # 13

At the starting point of the free fall motion of an object, its acceleration will be

Question # 14

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 # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Which of the following options correctly states the equation of continuity for an ideal fluid?
A. A1A2= V1V2
B. A1/A2= V2/V1
C. A1/A2= V1/V2
D. none of the above
2 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
3 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Air currents of the earth atmosphere
C. Surface tension effect
D. Viscous force exerted by air
4 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
5 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
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
A. P
B. 1/2 fv2
C. pgh
D. none of them
7 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
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 Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?
A. fluid B
B. fluid A
C. both take the same time
D. not possible to determine from given information
10 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them

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