Question # 1

When body acquires terminal velocity them its acceleration 'a' becomes.

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a = 0

a = g

a > 0

a < 0

The product of cross sectional area of a pipe and speed of fluid along the pipe is

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Zero

Maximum

Constant

Variable

The unsteady flow of a fluid is called

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Stream line

Turbulent flow

Average flow

Viscous flow

The unit of co efficient of viscosity in S.I system

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Kg -1 ms-1

Kg m-1 s-1

kg -1 m-1

Kg ms-1

Substances that don't flow easily has

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Large co-efficient of viscosity

Small co-efficient of viscosity

Medium co-efficient of viscosity

Zero-coefficient of viscosity

The SI units of flow rate are.

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m2s-1

m3s-2

m3s-1

m2s-2

Which material has maximum viscosity

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Glycerin

Plasma

Methanol

Water

If the radius of droplet becomes half, then its terminal velocity will become.

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Double

Half

One fourth

Remains same

The ratio of the velocities of wate in a pipe lying horizontally at two ends is 1 : 4 The ratio of diameters of pipe at these two ends is.

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1 : 2

2 : 1

1 : 4

4 : 1

The dimension of pgh has same as that of

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Work

Energy

Pressure

Mass

The lower reading of blood pressure is called.

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Systolic pressure

Diastolic pressure

Normal pressure

Non normal pressure

Air blows from

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High pressure to low pressure

Low pressure to high pressure

Low temperature to high temperature

High temperature to low temperature

The terminal velocity of a droplet falling down under gravity is directly proportional to the square of

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Its density

Its radius

Its viscosity

Its elasticity

The drag force increases as the speed of object

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Become zero

Decreases

Increases

Remains constant

The flow of a fluid is of

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One type

Two types

Three types

Four type

The law of conservation of energy is the basis of.

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Stream line flow

Equation of continuity

Bernoulli's equation

Venture relation

If the stream lines of fluid are forced closer together then.

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Speed of the fluid increases

Speed of the fluid decreases

Pressure of the fluid increases

Speed of the fluid remain same

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Physics ICS Part 1 Chapter 6 Online Test MCQs With Answers

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