What is the significance of measurement, and why is it important?
Differentiate between primary and secondary standards of measurement.
What are the factors that influence the selection of measuring instruments?
Define precision, accuracy, sensitivity, repeatability, range, threshold, hysteresis, and calibration.
Discuss the types of errors that can occur in measurements.
Explain the measurement of surface finish.
Introduce transducers and their role in measurement.
Describe the working principle of a strain gauge.
Explain force measurement and its applications.
Discuss torque measurement and the methods used.
Explain the working principle of a McLeod gauge for pressure measurement.
Describe speed measurement techniques.
Discuss different methods for displacement measurement.
Explain flow measurement and the various techniques used.
Discuss temperature measurement and the different types of temperature sensors.
Explain miscellaneous measurements, including humidity measurement using a hair hygrometer, density measurement using a hydrometer, liquid level measurement using a sight glass and float gauge, and biomedical measurement using a sphygmomanometer.
Define limits, fits, and tolerances and their importance in engineering.
Explain selective assembly and interchangeability in relation to limits, fits, and tolerances.
Describe the hole and shaft basis system and its applications.
Explain Taylor’s Principle and its significance in limit design.
Describe the design and use of plug and ring gauges.
Discuss the concept of multi-gauging and inspection.
Explain angular measurement using a universal bevel protractor, sine bar, spirit level, and clinometers.
Discuss the working principles of angle gauges and provide examples of numerical problems related to setting angle gauges.
Describe screw thread measurements, including the two-wire method and thread gauge micrometer.
Explain the working principle of a floating carriage dial micrometer.
Discuss the measurement and testing of gears, including analytical and functional inspection, rolling test, measurement of tooth thickness using the constant chord method, and the use of gear tooth vernier.
Explain the errors that can occur in gears, such as backlash, runout, and composite errors.
Discuss machine tool testing, including measurements of parallelism, straightness, squareness, coaxiality, roundness, and runout.
Explain the alignment testing of machine tools according to the IS standard procedure.
