Question # 1

Viscosity is defined as

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the friction between fluid and its container's walls

the internal friction between two layers of fluid

the resistance to flow a fluid experiences

the extent to which outside factors effect the fluid's flow

During the steady flow, different streamlines

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cannot across each other

can across each other

either of them

neither of them

In Bernoulli's theorem the relation between velocity and pressure is

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Inverse

Direct

None of the above

Both a and b

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

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maximum speed

zero speed

maximum speed

none of them

0.10 cm can be written as:

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1.0 x 10^-2m

1.0 x 10^-3cm

1.0 x 10^-4cm

1. x 10^-4m

Fluids resist force, This property is called

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Stiffness

Strength

Ductility

Elasticity

The pressure will be low where the speed of the fluid is

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Zero

High

Low

Constant

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

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incompressible

compressible

viscous

non viscous

Blood has a density

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Equal to water

Greater then water

Lesser then water

None of these

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

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very high

very low

constant

zero

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

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maximum

minimum

zero

none of them

The law of conservation of mass gives us the

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equation of continuity

Bernoulli's theorem

both of them

none of them

Bernoulli's equation is based upon law of conversation

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Mass

Momentum

Energy

None of these

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

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Zero

Small

Large

None of these

The property of fluids due to which they resist their own flow is called:

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Drag force

Surface tension

Viscosity

None of these

The equation of continuity is

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A₁A_{2 = V}₁V₂

A_1/_V_{1 =}A_2/V₂

_V_1/A₁₌V_2/A₂

A₁_V_{1 =}A₂V₂

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