Physical Quantities and Measurement

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1. Which of the following is a base unit?

 
 
 
 

2. The instrument best measures the internal diameter of a pipe is:

 
 
 
 

3. Ratio of millimetre to micrometre is:

 
 
 
 

4. Which one of the following unit is not a derived unit?

 
 
 
 

5. Which of following prefix represents a largest value?

 
 
 
 

6. Amount of a substance in terms of numbers is measured in:

 
 
 
 

7. The number of significant figures in 0.00650 s are:

 
 
 
 

8. Micrometer can be used to measure:

 
 
 
 

9. Least count of screw gauge is 0.01 mm. If main scale reading of screw gauge is zero and third line of its circular scale coincides with datum line then the measurement on the screw gauge is:

 
 
 
 

10. 9.483 x 10³ m is the standard form of:

 
 
 
 

11. The numbers having one significant digit is:

 
 
 
 

12. 0.2 mm in units of meters is:

 
 
 
 

13. Which of the following numbers show 4 significant digits?

 
 
 
 

Question 1 of 13

 

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