The following thermocouple may be used for measuring temperature upto 1873°K.

A. Chromel-alumel

B. Copper-constantan

C. Platinum-platinum rhodium

D. Iron-constantan

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  1. Which of the following is the most wear resistant grade of carbide used for the cutting tools?
  2. A pycnometer is used for the measurement of
  3. Laser is a device to produce
  4. Which of the following varies as the square root of oil pressure during atomisation of fuel oil through…
  5. While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen…
  6. Which of the following alloying elements is present in maximum percentage in high speed steel?
  7. Super conduction in metals is observed at a temperature of __________ °K.
  8. Uniform ramming of sand in green sand moulding process leads to
  9. Pressure required to increase the density of water by about 1% is __________ atmosphere.
  10. Auto collimator is used to check
  11. In an eutectic system, two elements are completely
  12. Cast iron contains __________ percent carbon.
  13. With increase in temperature, the electrical conductivity of semiconductors
  14. Which of the following is not a dielectric material?
  15. Change in volume of metals from absolute zero temperature to their melting points is
  16. Normalising does not __________ of a metal.
  17. The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation…
  18. The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature…
  19. The malleability of a material is the property by virtue of which it can be rolled or hammered into…
  20. Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.
  21. __________ is not a case hardening process.
  22. __________ of austenite decreases the hardenability in steel.
  23. Which of the following is not used as a bearing material?
  24. Shrinkage allowance on pattern is provided to compensate for shrinkage when the
  25. Hot extrusion of aluminium is done in the temperature range of __________ °C.
  26. Lap joints are preferred over butt joints in soldering/brazing, because these joints are
  27. Spheroidising of a material is a/an __________ process.
  28. Which of the following low melting alloy containing bismuth and lead is used for electric fuse?
  29. Which of the following phenomenon will exhibit the minimum heat transfer?
  30. Out of the following, the __________ pipe has the least corrosion resistance.