Download GTU BE/B.Tech 2019 Winter 4th Sem New 2141901 Mechanical Measurement And Metrology Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 4th Sem New 2141901 Mechanical Measurement And Metrology Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? IV (New) EXAMINATION ? WINTER 2019
Subject Code: 2141901 Date: 13/12/2019

Subject Name: Mechanical Measurement & Metrology

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS

Q.1 (a) State necessity and objectives of metrology. 03
(b) Differentiate following terms: i) Accuracy and precision
ii) Repeatability and Reproducibility
04
(c) Describe errors and sources of errors. 07

Q.2 (a) What precaution should be taken while using micrometer. 03
(b) Write a short note on : Spirit level 04
(c) Explain the construction and working of a Vernier Caliper. 07
OR
(c) Explain the followings: i) Mechanical strain gauges
ii) Gauge factor
07
Q.3 (a) Write application and limitation of angle gauges. 03
(b) Explain Proving ring with sketch. 04
(c) Describe with sketch the construction and working of a RTD. Give
advantages and disadvantages of RTD.
07
OR
Q.3 (a) What is a ?Peltier effect? in thermocouple? 03
(b) Explain hemispherical bore gauge with applications. 04
(c) What are absorption dynamometers? Explain any one with a neat sketch. 07
Q.4 (a) List out various characteristics of good comparators 03
(b) Write a short note on seismic accelerometer. 04
(c) Explain Tool maker?s Microscope. 07
OR
Q.4 (a) Write the advantages of Coordinate measuring machines 03
(b) Explain Liquid in glass Thermometer. 04
(c) Explain the construction and working of LVDT with its advantage and
disadvantages.
07
Q.5 (a) Explain surface texture characteristics. 03
(b) Explain adverse effect of poor surface finish. 04
(c) Explain Two wire method for measuring effective diameter of thread. 07
OR

Q.5 (a) Give comparison between involute and cycloidal gears. 03
(b) Explain Parkinson gear tester with neat sketch. 04
(c) Sketch and describe the construction and working of Tomlinson surface
roughness tester.
07

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