# Measuring Instruments

## Measuring Instruments

Congratulations - you have completed Measuring Instruments. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%
 Question 1
To measure very small lengths a __________ is used.
 A metre scale B vernier calliper C screw gauge D vernier scale
 Question 2
The screw head is provided with _________ to prevent from undue pressure exerted by the user.
 A frame B milled head C pitch D ratchet
 Question 3
The principle of the crew is used in a _______
 A screw gauge B vernier calliper C physical balance D scale
 Question 4
The distance between two screw threads is called ________
 A pitch B least count C zero error D zero correction
 Question 5
The distance moved by the tip of the screw for a rotation of one division on the head scale is _________
 A length of the screw B the pitch of the screw C the diameter of the screw D least count of the screw
 Question 6
The  pitch scale is graduated in ________
 A millimetre B metre C division D centimetre
 Question 7
 A metre B division C millimetre D centimetre
 Question 8
If the zero of the head scale coincides with the pitch scale axis, the error in the instrument is ____________
 A positive B negative C zero D one
 Question 9
If the zero of the head scale is below the pitch scale axis, the error in the screw gauge is _______
 A positive B negative C zero D one
 Question 10
The least count of screw gauge is __________
 A 0.01 mm B 0.1 mm C 0.01cm D 0.1 cm
 Question 11
Screw gauge is used to measure_______
 A diameter of a ball bearing B thickness of metal sheet C small change in the length of rod when heated D all the above
 Question 12
The unit used to measure very long distance is ________
 A astronomical unit B kilometre C millimetre D none
 Question 13
The distance of the centre of the sun from the centre of the earth is ________
 A light year B astronomical unit C angstrom D kilometre
 Question 14
The distance travelled by light in one year in vacuum is _______
 A light year B astronomic unit C velocity of light D none
 Question 15
In a screw gauge, the head of the sleeve is divided into _______
 A 1000 divisions B 10 divisions C 100 divisions D 2 divisions
 Question 16
Match the following
1. Distance between two successive thread of a screw a. Millimetre
2. pitch scale b. Laser pulse method
3. Least count of the screw c. Pitch of the screw
4. Distance of a moon from the earth d. Pitch/ No. of head scale divisions
 A 2 4 1 3 B 3 1 4 2 C 4 1 3 2 D 1 3 2 4
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There are 16 questions to complete.

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