Shaft/rotor speed is most accurately measured by a

A. Frequency counter

B. Tachometer

C. Strobometer

D. Speedometer

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Powder metallurgy technique is used in the production of __________ tools.
  2. Which of the following metals is the most prone to work hardening?
  3. Work done by a/an __________ process is determined by ∫p. dv
  4. Thermistors are used in __________ devices.
  5. Out of the following, the most malleable material is
  6. Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing…
  7. Adhesives
  8. The refrigerant freon-12 is chemically
  9. Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same…
  10. Nitriding of a steel part does not increase its
  11. Which one is neutral in character?
  12. Large scale fire on fuel gas line is normally extinguished by
  13. __________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in…
  14. Which of the following metals is not subjected to electrolytic refining/purification?
  15. Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot
  16. For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is…
  17. In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular…
  18. Which of the following fastening devices has a head at one end and a nut fitted to the other?
  19. Isotropic materials have the same __________ in all directions.
  20. The majority charge carriers in p-type silicon are
  21. Cemented carbide tools are not suitable for cutting
  22. In chemical dehumidification process
  23. Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C…
  24. Hydrogen can be
  25. The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________…
  26. Stellite is a __________ material.
  27. A solution which resists change in its pH value on addition of acid/alkali is called the __________…
  28. Spheroidising of a material is a/an __________ process.
  29. Dew point temperature always gives an indication of the __________ of the moist air.
  30. Fibrous fracture is normally encountered in the __________ materials.