Advertisements
Advertisements
प्रश्न
What is the function of ratchet in the screw gauge?
Advertisements
उत्तर
When the flattened end of the screw comes in contact with stud, ratchet becomes free and makes a rattling noise. It indicates that the screw should not be further pushed towards the stud.
APPEARS IN
संबंधित प्रश्न
Define the least count of vernier callipers. How do you determine it?
A screw gauge has a least count 0.001 cm and zero error +0.007 cm. Draw a neat diagram to represent it.
Which of the following measures a small length to high accuracy : metre rule , vernier callipers or screw gauge?
The pitch of a screw gauge is 1 mm and the circular scale has 100 divisions. In measurement of the diameter of a wire, the main scale reads 2 mm and 45th mark on the circular scale coincides with the base line. Find
(i) The least count and
(ii) The diameter of the wire.
When a screw gauge with a least count of 0.01 mm is used to measure the diameter of a wire, the reading on the sleeve is found to be 1 mm and the reading on the thimble is found to be 27 divisions.
(i) What is the diameter of the wire in cm?
(ii) If the zero error is +0.005 cm, what is the correct diameter?
In figure for vernier callipers, calculate the length recorded.
The least count of a vernier callipers is 0.01 cm and it has an error of + 0.07 cm. While measuring the radius of a sphere, the main scale reading is 2.90 cm and the 5th vernier scale division coincides with the main scale. Calculate the correct radius.
What do you understand by the term zero error?
State the correction if the positive error is 7 divisions when the least count is 0.01 cm.
A vernier caliper using the scale invented by Galileo.
