Advertisements
Advertisements
Question
State the formula for calculating the pitch of screw.
Advertisements
Solution
Pitch of screw
= `"Distance moved by thimble on main scale"/"Number of rotations of thimble"`
E.g. If 5 mm is the distance moved by the thimble on the main scale in 5 rotations then,
Pitch = `(5 "mm")/5` = 1 mm
APPEARS IN
RELATED QUESTIONS
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?
Draw a neat and labelled diagram of a screw gauge.
Name its main parts and state their functions.
The pitch of a screw gauge is 0.5 mm and the head scale is divided in 100 parts. What is the least count of a screw gauge?
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 is the function of ratchet in the screw gauge?
How do you account for negative zero error, for calculating the correct diameter of wires?
Consider the following case where the zero of vernier scale and the zero of the main scale are clearly seen. If L.C. of the vernier calipers is 0.01 cm, write the zero error and zero correction of the following.

