SUBJECT - METROLOGY AND INSTRUMENTATION
CODE - 09 703
SEMESTER - SEVENTH
BRANCH - ME
UNIVERSITY - CALICUT
YEAR - 2012
Part A
Answer all Questions
I.(a) Define precision and accuracy.
(b) Distinguish between ‘Line Standard’ and ‘End standard’.
(c) State the basic requirements of a transducer.
(d) Give classification of temperature measuring instruments.
(e) Define the terms ‘Primary Texture’ and ‘Secondary Texture’.
(5x2=10 marks)
Part B
Answer any four questions,
II.(a)Discuss various types of errors in measurement systems ?
(b).What is input filtering method ?•
(c).Explain the working of a differential transformer.
(d).Sketch a Me Leod gauge and explain its working.
(e).Sketch and explain various thermocouple junctions.
(f).Describe in brief the total radiation pyrometer.
Part C
Answer all questions
III.(a)Define and explain physical measurement. Briefly explain the various methods employed in measurements.
Or
(b)Explain the method of opposing inputs with a suitable example.
IV.(a)What is a transducer ? Explain, different types of transducer.
Or
(b)Write short notes on: (i) Bulk modules gauge.
(ii) Thermal conductivity gauges.
V.(a) Explain theory and constructional details of (i) Rotameter, (ii) Drag force flow meter
Or
(b) Describe with neat sketches; .
(i) Liquid filled thermometer.
(ii) Resistance thermometer.
VI.(a) Briefly explain with sketches/diagrams.
(i) Sine bars, (ii) Slip gauges, (iii) Angle gauges.
Or
(b) How the Tomlinson surface recorder and Talysurf machine work ? What are their relative merits.
(4x10=40 marks)
