Gauges MCQ with Answers

31) One of the precision instruments used to check the dimensional accuracy of an external 'V' thread, is a screw thread micrometer. Which one of the following elements of a screw thread is checked with screw thread micrometer ?

Answer is:

Pitch diameter

One of the precision instruments used to check the dimensional accuracy of an external 'V' thread, is a screw thread micrometer. Which one of the following elements of a screw thread is checked with screw thread micrometer ?

32) Which one of the following grades of slip gauges set is meant for reference purpose ?

Answer is:

Grade 00

Explanation:

Grades of slip gauges
Grade '00' accuracy - It is a calibration grade used as a standard for reference to test all the other grades.
Grade '0' accuracy - It is an inspection grade meant for inspection purposes.
Grade I accuracy - Workshop grade for precision tool room applications.
Grade II accuracy - For general workshop applications.