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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
A vernier callipers has a zero error of + 0.06 cm. Draw a neat labelled diagram to represent it.
Describe in steps, how would you use a vernier callipers to measure the length of a small rod?
Explain the terms : Pitch .
How are they determined?
The least count of a vernier callipers is 0.0025 cm and it has an error of + 0.0125 cm. While measuring the length of a cylinder, the reading on the main scale is 7.55 cm, and the 12th vernier scale division coincides with the main scale. Calculate the corrected length.
When does a vernier callipers has the positive error?
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.
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.
