Metrology & Quality Control Test Questions


Q.  Which of the following statements are true? 1. Mechanical comparators are compact and easy to handle 2. Parallax error is never observed in mechanical comparator 3. Sigma comparator is a type of mechanical comparator 4. Mechanical comparators have low inertia which makes them sensitive to vibrations

a. 1 and 2
b. 3 and 4
c. 1 and 3
d. All of the above



 
 

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