Advertisements
Advertisements
प्रश्न
Explain the term least count of a screw gauge. How are they determined?
Advertisements
उत्तर
Least count refers to the smallest reading that can be accurately measured while using an instrument. The least count is the value of one division on its scale.
APPEARS IN
संबंधित प्रश्न
A screw gauge has 50 divisions on its circular scale and its screw moves by 1 mm on turning it by two revolutions. When the flat end of the screw is in contact with the stud, the zero of the circular scale lies below the base line and 4th division of the circular scale is in line with the base line. Find
(i) The pitch,
(ii) The least count and
(iii) The zero error of the screw gauge
Which part of vernier callipers is used to measure the internal length of a hollow cylinder?
The circular scale of a screw gauge has 50 divisions. Its spindle moves by 2 mm on the sleeve, when given four complete rotations calculate
- pitch
- least count
A micrometre screw gauge having a positive zero error of 5 divisions is used to measure diameter of a wire, when reading on the main scale is 3rd division and the 48th circular scale division coincides with baseline. If the micrometer has 10 divisions to a centimetre on the main scale and 100 divisions on a circular scale, calculate
- Pitch of screw
- Least count of screw
- Observed diameter
- Corrected diameter.
For what range of measurement is micrometre screw gauge used?
What do you understand by the following term as applied to micrometre screw gauge?
Thimble
What do you understand by the following term as applied to screw gauge?
Positive zero error
How the backlash error is avoided?
In a vernier calipers, (N + 1) divisions of vernier scale coincide with N divisions of main scale. If 1 MSD represents 0.1 mm, the vernier constant (in cm) is ______.
