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Temperature attained in soldering of metals is about __________ °C.

A. 150-300

B. 400-500

C. 650-800

D. 1000-1100

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

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  1. Tumbling is the process of improving the __________ of the materials/parts.
  2. Which of the following materials has the maximum shrinkage allowance?
  3. Pick out the correct statement.
  4. __________ circuit is most commonly used to measure strain with the help of a strain gauge.
  5. Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.
  6. The most detrimental impurity in high pressure boiler feed water is
  7. Galvanic corrosion cannot be prevented by
  8. Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam…
  9. The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation…
  10. Brittleness induced due to the presence of sulphur in steel can be reduced by adding
  11. Dew point temperature always gives an indication of the __________ of the moist air.
  12. __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
  13. __________ is used for tying the steel columns to concrete foundation.
  14. Pick out the wrong statement.
  15. The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and…
  16. Pick out the wrong statement.
  17. Ferromagnetic materials owe their properties to __________ inner sub-shells.
  18. Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement.…
  19. The only suitable method for hardening the low carbon steel is case hardening. Which of the following…
  20. All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in…
  21. Which of the following has the least value of ultimate tensile strength (UTS)?
  22. Which of the following is an acidic constituent of B.F. slag?
  23. Main constituent of bone ash is
  24. Methyl orange indicator turns
  25. Which of the following approaches the ideal gas behaviour most closely?
  26. A steam pipe is intended to be insulated with two layers of insulating materials of different thermal…
  27. Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation…
  28. The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature…
  29. In Imperial Smelting Process for extraction of zinc, zinc vapour thus produced is quenched in the external…
  30. The amount of different substances produced, when the same quantity of electricity is passed through…