Advertisements
Advertisements
Question
A screw gauge has a least count 0.001 cm and zero error +0.007 cm. Draw a neat diagram to represent it.
Advertisements
Solution
Diagram of a screw gauge with L.C. 0.001 cm and zero error +0.007 cm.

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?
A vernier callipers has its main scale graduated in mm and 10 divisions on its vernier scale are equal in length to 9 mm. When the two jaws are in contact, the zero of the vernier scale is ahead of the zero of the main scale and the 3rd division of the vernier
scale coincides with a main scale division.
Find : (i) The least count and
(ii) The zero error of the vernier callipers.
The thimble of a screw gauge has 50 divisions. The spindle advances 1 mm when the screw is turned through two revolutions.
(i) What is the pitch of the screw gauge?
(ii) What is the least count of the screw gauge?
Define metre according to the old definition.
State the formula for calculating length if:
The reading of the main scale is known and the number of vernier scale divisions coinciding with the main scale is known.
When does a vernier callipers has the positive error?
Name the measuring employed to measure the diameter of a needle.
State whether the following statement is true or false by writing T/F against it.
A metre scale can measure a length of 6.346 cm.
The precision of vernier calipers is ______ mm.
