Select the correct statement(s) for a given vernier callipers, when the two jaws of the apparatus are in contact.

Select the correct statement(s) for a given vernier callipers, when th

1.	Select the correct statement(s) for a given vernier callipers, when the two jaws of the apparatus are in contact.
Answer» If the ZERO of the vernier CALLIPERS, does not coincide with the zero of the MAIN scale, then the vernier callipers is said to possess zero error. Zero error and zero correction are same numerically, but opposite in SIGN. Zero error is positive, when zero of the vernier scale lies to the left of the zero of the main scale. Zero error is negative, when zero of the vernier scale lies to the left of the zero of the main scale. ANSWER :A::B::D