M

Mr. Dubey • 52.30K Points
Coach 

Q. Which of the following is true for checking the Relative perpendicular motion of the longitudinal and transverse carriage?

(A) the permissible error allowed is 0.005 mm in 2500 mm length.
(B) this is checked using a slip gauges
(C) precision square of class i or 0 is used
(D) maximum error in precision error is of ± 10″ in squareness
Correct : Option (C)

Explanation: 
 the permissible error allowed in this case is 0.005 mm in 1100 mm length. this can be done by using a precision square of class i or class 0 accuracy having a maximum error of ± 10″ in squareness.

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