1.
The study of scientific metrology deals with

2.
Which of the following processes is used to monitor space signals of a space craft?

3.
Which of the following is not a type of direct measuring instrument?

4.
Johansson mickrocator is a type of

5.
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

6.
Which method is used to test the straightness of an object?

7.
What is a least square line?

8.
What does allowance represent in clearance fits?

9.
Which of the following statements is/are false?

10.
A surface of 2.1 mm is to be measured using a interferometer. Calculate nominal fraction for blue light which has wavelength of 0.785 μm.