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22102 Unit I online test

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Question 1

The Property of an object that can be measured with a measuring instruments is known  as______________.

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Physical system

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Physical Unit

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Physical attribute

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Physical quantity

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Question 2

Which of the Following is not a Physical quantity

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Length 

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height 

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Pain

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Light 

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Question 3

Which Of the following is Fundamental quantity 

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Electric resistence

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Electric Charge 

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Electric Voltage 

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Electric Current 

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Question 4

Select the correct option of Fundamental quantites with SI units 

Quantity            Unit
a) Length  i) A
b) Temperature ii) M
C) Electric Current  iii) mol
d) Amount of Sub iv) K
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a-iii , b-i , C-iv , d-ii

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a-ii , b-iv , c-i , d-iii

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a-ii , b-i , c-iv , d-iii

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a-iv , b-iii , C-ii , d-i

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Question 5

The tyre air pressure is mostly writeen in PSI (Pounds per square inch) This unit belongs to,

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CGS units 

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SI units 

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FPS units 

1

MKS units 

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Question 6

What is SI Unit of Amount of Substance?

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Mol

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Newton 

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Gram 

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Kg

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Question 7

How many fundamental quantities are there in SI Units system?

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Five

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Six

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Three

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Seven 

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Question 8

KWh ( kilo - watt - Hour ) is a unit of ______________

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Power 

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Work 

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Pressure 

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Energy

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Question 9

Dimension of Power_______________

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L^1 M^2 {T^{2}}

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  L^1 M^1 {T^{-3}}

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 M^1 L^{-1} {T^{3}}

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 L^1 M^{-2} {T^{3}}

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Question 10

In FPS system length is measured in,

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meters 

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Pounds 

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Foot

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Centimeters 

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Question 11

How many Significant Figures this reading has 19700

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5

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3 

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4

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2

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Question 12

How many significant figures this reading has 0.0069

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5

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3

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2

1

4

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Question 13

How many significant figures are there in reading 5000 \times 10^{6}

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8

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5

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10

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1

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Question 14

How many significant Figures this reading has 2.5400

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5

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4

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6

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3

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Question 15

The error occur due to faulty instrument is___________________

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Instumental error

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Random error 

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systematic error

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Human error 

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Question 16

Additian & measurement 12.241 cm, 4.51 cm & 4.0 cm in significant figure is_____________________

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20.75

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20.750

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20.7

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20.751

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Question 17

The Length of rectangle is 1.25 cn and width is 3.354cm The area of rectange in significant figures with be____________

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4.192cm ^{2}​

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4.1925 cm ^{2}

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4.1cm ^{2}​

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4.19cm ^{2}​

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Question 18

The Measurement of radius as a circle has error of 1% The error in measuremnet as its area (A) will be______________

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3.14%

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2%

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1%

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0.5%

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Question 19

Temp scales dgree celsius (ºC) and Kelvin are related  by

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ºC = K + 273

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ºC = K / 273

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ºC - 273 = K

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ºC + 273 = K

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Question 20

The measuremant of side of a cube has error of 2% The error in volume measurement with be__________________

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4%

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8%

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6%

1

0.5%

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