ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

Try The MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

The law of conservation of mass gives us the

Question # 2

Fog droplets are suspended in air when their weight is balanced by:

Question # 3

The resistance offered by a fluid to a solid moving inside it is called:

Question # 4

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

Question # 5

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

Question # 6

When a water droplet falling freely through air, the drag force on water droplet increases with th

Question # 7

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

Question # 8

The body passing a viscous medium affected by:

Question # 9

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

Question # 10

The fluid which is incompressible and non viscous is called

Question # 11

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 12

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 # 13

The internal pressure of the blood is

Question # 14

Viscosity of water is ______ that of air but ___ that of plasma.

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
2 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
3 How much force is required to slide one layer of the liquid over the other layer is measured by
A. friction
B. density
C. viscosity
D. resistivity
4 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
5 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity
6 When a water droplet falls through air, the net force on it is
A. Net force = drag force - weight
B. Net force = weight - drag force
C. Net force = drag force + weight
D. Net force = weight + drag force
7 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
8 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar
9 At high speed, fluid friction _____ and fuel consumption ___,:
A. Increases, decreases
B. Increases, increases
C. Decreases, increases
D. None of these
10 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these

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