Third year, Department of Mechanical Sandwich
Engineering
First and second Units Questions.
Answer ALL
questions
PART A – (5×2=10
marks)
1. What
is meant by metrology?
2. What
is Measurand?
3. What
is the difference between accuracy and repeatability?
4. State
Abbe’s Principal of alignment?
5. Explain
Abbe’s error and Abbe’s offset?
6. What
is Bias?
7. What
is optical flat?
8. What
are the uses of vernier calipers?
9. Write
5 needs of measurement?
10. Draw
a wave diagram of a in phase light wave combination?
PART B
1. Explain
flatness test by interferometry with neat sketch? (16 marks)
2. Discuss
about BIS and its applications? (16 marks)
3. Write
about ISO 000 and its elements? (16 marks)
4. a.
What are the types of comparators? (8 marks)
5. a.What is hologram? (8 marks)
b. Explain different types of projectors? (8
marks)
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