Download GTU BE/B.Tech 2019 Summer 4th Sem New 2142503 Metrology And Measurement Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
- SEMESTER-IV(NEW) — EXAMINATION - SUMMER 2019

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Subject Code:2142503 Date:09/05/2019
Subject Name: Metrology and Measurement
Time:02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Draw and explain generalized measurement system. 03
(b) Compare the terms: Accuracy and Precision. 04

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(c) Define Metrology. Explain mechanical strain gauges. 07

Q.2 (a) Explain the calibration process of temperature measuring devices. 03
(b) Describe the working principle of Photoelectric tachometer. 04
(c) Explain the working principle of LVDT with merits and demerits. 07

OR

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(c) List out various temperature measuring devices. Explain working of 07
thermo couples briefly.

Q.3 (a) Classify various linear measuring instruments. 03
(b) Draw a neat sketch of Vernier Height Gauge. 04
(c) Write a short note on Vernier Micrometer. 07

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OR

Q.3 (a) Enlist various errors arise during the manufacturing of screw threads. 03
(b) Write a short note on light interference microscope. 04
(c) Explain the working principle of sine bar with example. 07

Q.4 (a) Classify various angular measuring instruments. 03

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(b) Write a short note on tool maker’s microscope. 04
(c) Explain gear tooth terminology with neat sketch. 07

OR

Q.4 (a) Enlist various surface measuring instruments. 03
(b) What is the application of angle dekkor? 04

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(c) Explain the working of Taylor Hobson Talysurf with neat sketch. 07

Q.5 (a) What do you mean by pyrometry? Enlist various types of 03
pyrometers.
(b) What are the merits and demerits of mechanical comparator? 04
(c) Explain the measurement of effective diameter by Two wire method. 07

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OR

Q.5 (a) Explain the function of Slip Gauges. Explain Wringing method in 03
detail.
(b) What are the merits and demerits of pneumatic comparator? 04
(c) Draw and explain working of Co-ordinate Measuring Machine. 07

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