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22102 Unit I online test

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Question 1

" Bar " is Unit of 

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Pressure 

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Heat 

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Temp

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Work

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Question 2

Dimension of Pressure

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 M^1 L^1 {T^{1}}

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 M^1 L^{-1} {T^{-2}}

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M^1 L^{-1} {T^{-1}}

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  M^1 L^2 {T^{-2}}

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Question 3

How many fundamental quantities are there in SI Units system?

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Seven 

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Three

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Six

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Five

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Question 4

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

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Physical attribute

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Physical Unit

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Physical system

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Physical quantity

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Question 5

What is SI Unit of Amount of Substance?

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Kg

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Gram 

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Mol

1

Newton 

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Question 6

Which of the Following is NOT a fundamental quantity 

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Length 

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Amount of Substance

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Weight 

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Mass

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Question 7

Dimension of Power_______________

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

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 L^1 M^{-2} {T^{3}}

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  L^1 M^1 {T^{-3}}

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 M^1 L^{-1} {T^{3}}

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Question 8

Dimension of Acceleration_______________

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M^0 L^1 {T^{-2}}

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 M^0 L^1 {T^{1}}

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M^0 L^1 {T^{2}}

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

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Question 9

Select Correct option of Qty & Unit 

 

Qty
Unit

a) Mass
P) K

b) Electric Current 
q) A

c) Luminious Intensity 
r) Kg

d) Temp
s) Cd

 

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a-r , b-q , c -p , d-s

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a-r , b-s , c -p , d-q

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a-r , b-s , c -p , d-q

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a-r , b-q , c -s , d-p

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Question 10

Once Ampere current is given 

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1A = 1C / 1 0hm

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1A = 1s * 1C

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1A = 1C / 1S

1

1A = 1S / 1C

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Question 11

How many Significant Figures this reading has 19700

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2

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4

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5

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3 

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Question 12

A Good Unit should be,

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Universoly accepted

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Well defined 

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Invasiable from place to place 

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All of the above 

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Question 13

The error occur due to faulty instrument is___________________

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Random error 

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Human error 

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Instumental error

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systematic error

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Question 14

The error due to worng settings in instrumental is called 

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Instrumental error 

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Random error 

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Systematic error

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None of above

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Question 15

How many significant figures this rading has 0.784 cm

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3 Significant Figures 

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4 Significant Figures 

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2 Significant Figures 

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1 Significant Figures 

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Question 16

In his low resistance is given by R = V/I error in Voltage measurement is 4% The error in current measurement is 2% The error in resistance measurement will be____________

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8%

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2%

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4%

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6%

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Question 17

Temperature scales degree celsius (º0) and Fathenite (OF) are related by

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OF = \frac{9}{5} (OC)+32\eta

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OC = \frac{9}{5} (OF)- 32

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OF = \frac{9}{5} (OC)- 32

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OC = \frac{5}{9} (OF)- 32

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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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2%

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0.5%

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3.14%

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1%

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Question 19

Is x = a^{2} b/c where the percentage error in a,b,&C are 2% , 3% and 5% respectively Total percentage error in x will be_____________________

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2.4%

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12%

1

10%

0

24%

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Question 20

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

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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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ºC = K + 273

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