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 term 'Vernier constant'.
A vernier callipers has a zero error of + 0.06 cm. Draw a neat labelled diagram to represent it.
Name the part of the vernier callipers which is used to measure the following
Internal diameter of a mug
Name the instrument which has the least count
0.1 mm
In the vernier callipers, there are 10 divisions on the vernier scale and 1 cm on the main scale is divided into 10 parts. While measuring the length, the zero of the vernier lies just ahead of the 1.8 cm mark and the 4th division of vernier coincides with a main scale division.
(a) Find the length.
(b) If zero error of vernier callipers is -0.02 cm,
What is the correct length ?
A micrometre screw gauge has a negative zero error of 7 divisions. While measuring the diameter of a wire the reading on the main scale is 2 divisions and 79th circular scale division coincides with baseline.
If the number of divisions on the main scale is 10 to a centimetre and circular scale has 100 divisions, calculate
- pitch
- observed diameter
- least count
- corrected diameter.
What do you understand by the following term as applied to micrometre screw gauge?
Sleeve scale
What is meant by the pitch of a screw gauge? The pitch of a screw is 1 mm.
Find the reading of the instrument shown in the following figure.
The main scale reading while measuring the thickness of a rubber ball using Vernier caliper is 7 cm and the Vernier scale coincidence is 6. Find the radius of the ball.
