Define Metrology. Explain clearly difference between primary, secondary and working standards
[3 marks]Draw a block diagram of a generalized measurement system (GMS) and explain the various elements of it in detail.
[4 marks]Explain the construction and working of a Vernier height gauge with the help of a neat sketch.
[7 marks]Discuss the elements of screw thread with neat sketch.
[3 marks]Explain following gear errors : 1. Profile error, 2. Pitch error, 3. Errors in pressure angel, 4. Tooth thickness error
[4 marks]Write short note on Parkinson Gear tester.
[7 marks]Draw the neat sketch of “Taly surf” and its working principle.
[7 marks]Define unilateral and bilateral tolerances. Give examples for each.
[3 marks]Explain hole base vs shaft base system.
[4 marks]Explain types of fit with neat sketch.
[7 marks]Describe construction, working principle of Vernier Micrometer with neat sketch.
[3 marks]Define and Explain following terms (i) Sensitivity (ii) Hysteresis ( iii) Range and span
[4 marks]Accuracy and precision
[ marks]Explain the gear tooth thickness measurement by gear tooth Vernier calliper.
[7 marks]Explain working principle of bimetallic strip.
[3 marks]What is thermocouple? Explain application of series and parallel connection in thermocouple.
[4 marks]Describe the construction and working of resistance temperature detector (RTD).
[7 marks]What are the difference between systematic error and random error?
[3 marks]Explain liquid in glass thermometer.
[4 marks]Describe the construction and working of optical pyrometer.
[7 marks]Explain rope brake dynamometer
[3 marks]Explain the principle of electrical Strain gauges
[4 marks]Explain three wire method for measuring effective diameter of a thread.
[7 marks]Briefly Explain comparators.
[3 marks]Write short note on proving ring type load cell.
[4 marks]Explain working of McLeod gauge for pressure measurement.
[7 marks]