Download GTU BE/B.Tech 2019 Summer 4th Sem Old 141901 Mechanical Measurement And Metrology Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 4th Sem Old 141901 Mechanical Measurement And Metrology Previous Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?IV(OLD) ? EXAMINATION ? SUMMER 2019
Subject Code:141901 Date:17/05/2019
Subject Name: Mechanical Measurement & Metrology
Time:02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Define and Explain following terms:
(i) Accuracy and Precision (ii) Error (iii) Threshold.
07
(b) Explain the construction and use of the Sine bar. 07

Q.2 (a) Explain construction and working of LVDT. 07
(b) Explain pneumatic comparator and state the advantages and disadvantages. 07
OR
(b) Describe followings with neat sketch.
(i) Slip Gauge (ii) Dial Indicator.
07

Q.3 (a) Explain three wire method to measure the effective diameter of given screw
thread with neat sketch.
07
(b) List and explain characteristics of measuring devices stating illustrations. 07
OR
Q.3 (a) What are the various possible sources of errors in measurement? Define static
error and explain any two static errors with example.
07
(b) Describe with sketch the construction and use of Gear Tooth Vernier Caliper.
How is the gear tooth thickness at PCD measured?
07

Q.4 (a) Explain Surface Texture and Elements of Surface Roughness. 07
(b) Describe construction and working of Optical pyrometer. 07
OR
Q.4 (a) Define Flatness and describe a method to find out the flatness of a surface plate. 07
(b) Describe the construction and working of resistance temperature detector (RTD)
with its advantages and disadvantages.
07

Q.5 (a) Explain with sketch, construction and working of Piezometer & U-Tube
Manometer stating application.
07
(b) Explain construction and working of vibrating reed tachometer. 07
OR

Q.5 (a) Explain briefly the construction and working of bourdon tube pressure gauge. 07
(b) Explain working principle of Stroboscope. And list steps to measure angular
speed of shaft using stroboscope.
07

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