Physical Quantities and Measurement With Answers

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Physical Quantities and Measurement

Sr. # Questions Answers Choice
1 The instrument best measures the internal diameter of a pipe is. Screw gauge Metre rule Vernier caliper Measuring tape
2 Least count of scew gauge is 0.01 mm. If main scale reading of screw guage is zero and third line of its circular scale conscides with datum line then the measurement on the screw guage is. 0.03mm 3 mm 0.3mm 0.1 mm
3 Micro meter can be used to measure. Current Length Force Mass
4 Ratio of milimeter to micrometer is 1000 m 0.001 meter 1000 0.001
5 Which of following prefeix represents largest value. Pico Peta Mega Kilo
6 The numbers having one significance digit is. 6.0 1.1 6 x 10<sup>2</sup> 7.1
7 Which of the following numbers show 4 significant digits. 9000.8 4 0.001248 5174.00
8 In a vernier Calipers ten smallest divisions of the Vernier scale are equal to nine smallest divisions of the main scale. If the smallest divisions of the main scale is half milimeter, the Vernier constant is equal to. 0.05 mm 0.5 mm 0.1 mm 0.001 mm
9 The number of significant figuresin 0.00650 s are 2 3 5 6
10 0.2 mm in units of meters is. 2 x 10<sup>4</sup> m 0.0002 m 0.002 m None of these
11 Which of the following is a base unit. Mole Pascal Coulomb meter per second
12 amount of substance in terms of numbers is measured in Gram Mole Kilogram Newton
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