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

Bernoulli's equation is based upon law of conversation of

Question # 2

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

Question # 3

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 4

The density of blood is nearly equal to that of

Question # 5

Machine parts are jammed due to:

Question # 6

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

Question # 7

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

Question # 8

The flow of an ideal fluid is

Question # 9

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

Question # 10

The analysis of fluid motion becomes simplified by using

Question # 11

The irregular and unsteady flow of the fluid is called

Question # 12

The smooth or steady stream-line flow is know as

Question # 13

The un-steady streamline flow is called

Question # 14

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

Question # 15

The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less
2 According to slok's law, drag force depends on
A. Radius of the spherical body
B. Terminal velocity of body
C. Coefficient of viscosity
D. All of above
3 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
A. water contains hydrogen atoms, air does not
B. water molecules are smaller than molecules in the air
C. water molecules are smaller than molecules in the air
D. surface tension of the water prevents it from
4 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
5 Bernoulli's equation is based upon law of conversation of
A. mass
B. momentum
C. Energy
D. None
6 In deriving the Bernoulli's equation, we assume that the fluid is
A. incompressible
B. no viscous
C. flows in a steady manner
D. all of them
7 Deep water almost runs still when surface water flow in rivers. What does it explains
A. Magnus effect
B. Equation of continuity
C. Surface energy
D. Bernoulli's equation
8 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
9 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
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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