Mechanical measurement and metrology
Previous year question paper with solutions for Mechanical measurement and metrology
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- Differentiate between systematic and random errors.
- What is meant by local interchangeability?
- Differentiate between the terms “Accuracy” and “precision” with suitable examples.
- How do you classify measuring instruments? Explain them in brief.
- What is temperature compensation in strain gauges?
- What is the order of pressure measured by Ionization Gauge?
- What do you understand by working standards?
- Explain the difference between roughness and waviness.
- What are photo cell transducers?
- What are angle gauges? How are they used?
- List the functional elements of a measurement system.
- How is primary measurement standard different from secondary measurement standard?
- Explain the concept of calibration.
- Give a classification of errors in measurement.
- How do you define surface roughness?
- What is speed of response of a measuring instrument?
- What is the purpose hot wire anemometer?
- How do you measure vibration of a body?
- What is the role of temperature compensation in a measuring instrument?
- How does a transmission dynamometer measure the Torque?
- Distinguish between threshold and resolution.
- Explain principle of operating a dead weight gauge tester.
- What is difference between absolute pressure and gauge pressure?
- Suggest a method for measuring dynamic pressure variations in the exhaust manifold of an IC engine.
- What is bimetallic thermometer? Which material is used in this type of thermometer?
- What is a clinometer?
- What is pneumatic load cell?
- Suggest suitable transducers to convert each of the following into electrical signals: i) Pressure ii) Acceleration iii) Angular speed of shaft iv) Liquid level
- How the temperature of a furnace is measured?
- What is difference between systematic and random errors?