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प्रश्न
Draw a neat and labelled diagram of a screw gauge.
Name its main parts and state their functions.
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उत्तर
Diagram of screw gauge:
Main parts and their functions:
- Ratchet:It advances the screw by turning it until the object is gently held between the stud and spindle of screw.
- Sleeve:It marks the main scale and base line.
- Thimble:It marks the circular scale.
- Main scale:It helps to read the length correct up to 1 mm.
- Circular scale:It helps to read length correct up to 0.01 mm.
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संबंधित प्रश्न
Define the term 'Vernier constant'.
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
What do you mean by zero error of a screw gauge? How is it accounted for?
The circular scale of a screw gauge has 100 divisions. Its spindle moves forward by 2.5 mm when given five complete turns. Calculate
- pitch
- least count of the screw gauge
What do you understand by the term least count of screw?
The level of water in a measuring cylinder is 12.5 ml. When a stone is lowered in it, the volume is 21.0 ml. Find the volume of the stone.
State whether the following statement is true or false by writing T/F against it.
The metre scale, vernier calipers, and screw gauge are in decreasing order of least count.
On a vernier calliper, 25 vernier scale divisions are equal in length to 24 main scale divisions. One main scale division is 1 mm. Find the least count of the instrument.
