Tuesday, September 6, 2016
- Tuesday, September 06, 2016
- PunjabtechnicalUniversity ajay gour
- 3rd Semester M.Tech(PEE), Metrology And Industrial Insepction M.Tech(PEE) 3rd
- No comments
Roll no. Totle no. of pages: 02 Totle no. of questions: 08
METROLOGY AND INDUSTRIAL INSPECTION
Subject code: PE-521
Paper ID: [E0456]
INSTRUCTIONS TO CANDIDATE:
NOTE : Attempt any questions
a) What is meant by primary, secondary and working standards? Explain their use In the field of metrology.
b) Explain the use of slip gauges and sine bar in the measurement of anlogs. In thiscontent, Explain the procedure and working principle involved.
a) What is an auto-collimator? What is its application? Explain the constructionaldetails, working procedure and underlying principle.
b) Explain the aplication areas of optical projectorsand micriscopes? What is the underlying principle and working procedure of an otical projector?
a) What arethe main components which comprise surface finis? Explain the general procedure involved in the measurementof surface roughness.
b) Explain the role of plastic replica technoques in the assessment of surface roughness.
a) Explain the concept behind the calibration ogauges by the interference method.Why dose the interference method gets its name? Discuss the limitationsof the technique.
b) Explain the underlyin principaland proceduer of calibration in the use of guage length interferometer.
a) What are the measuringmethod for run-out and profile in gear metrolog. Explain.
b) Explain in detail the procedure of three wire method for measurement of screw thread characterics.
a) For what applicatons are compararoes generally used? Why this family of instrument gets this name,’comparator’?
b) Explain the constructional details, underlying principle,working procedure and application of screw thread micrometer.
a) What general procedure can be adopted for the selection of gauging aquipment?
b) Communication of specifications must be done in an efective manner. Coment.
c) What is the need and role of quality control management I the field of metrology and industrial inspection?
Q8. Write short notes on the following:
a) Line and End Standards
b) Ruling and calibratio of Standard Scales.
c) Obliquity coreection in calibration of working standards.
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