Consumable electrodes are used in the __________ welding.

A. Gas

B. Arc

C. Thermit

D. Resistance

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

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  1. Laser is a device to produce
  2. Water hammer is caused in steam carrying pipelines, because of
  3. Wavelength of radiation emitted by a body depends on the __________ of its surface.
  4. Basicity of the slag in Indian blast furnace is in the range of
  5. Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented…
  6. __________ property of a material is determined by the Herbert Pendulum device.
  7. In Imperial Smelting Process for extraction of zinc, zinc vapour thus produced is quenched in the external…
  8. Which of the following is a commonly used manometric liquid for low pressure range?
  9. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2.
  10. Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect…
  11. Blast furnace slag is mainly molten
  12. Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare…
  13. Nusselt number/Biot number varies
  14. In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb…
  15. One ton of refrigeration is not equivalent to the heat removal rate of
  16. The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and…
  17. Carbon is present in the form of __________ in grey cast iron.
  18. Superheating of steam is done at constant
  19. One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C).…
  20. Plastics as a material of construction suffer from the drawback of low
  21. Powder metallurgy is used to produce
  22. Density in the solid state is slightly less than that in its liquid state, in case of
  23. Which of the following represents the correct time-temperature curve when a block of metal is heated…
  24. The life of a ball bearing is inversely proportional to
  25. A pycnometer is used for the measurement of
  26. __________ temperature remains constant during adiabatic saturation process of unsaturated air.
  27. Percentage of argon (by volume) in dry atmospheric air is about
  28. Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
  29. Name the safety device used to protect the boiler, when the water level falls below a minimum level.
  30. Wrought iron is not