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In the diving apparatus, helium is used along with oxygen, because it is

A. Easily available

B. Not soluble in blood at high pressure

C. Lighter than nitrogen

D. Completely miscible with oxygen

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  1. The unit of gc is
  2. The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
  3. For grinding of softer materials, the grinding wheel should have __________ grain size.
  4. 'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and
  5. For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be
  6. In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean…
  7. What is the value of included angle of a triangular notch for maximum discharge?
  8. The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.
  9. __________ is used as a material of construction for the blade of power saw.
  10. Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying…
  11. __________ circuit is most commonly used to measure strain with the help of a strain gauge.
  12. Stresses encountered in the metal forming processes are less than the __________ of the material.
  13. Removal of non-condensable from steam or other vapour is termed as the __________ process.
  14. Globular form of cementite is formed during the __________ process.
  15. The mechanism which changes the value of manipulated variable in response to the output signal from…
  16. Which of the following gases cause global warming?
  17. The noble metals
  18. Case hardening of a material is
  19. Out of the following, which will fracture most readity, when hit with a hard hammer?
  20. Oxide layer formed on the non-ferrous metal surface after its annealing is
  21. Gage pressure within a spherical droplet of a fluid is 'p'. What will be gage pressure within a bubble…
  22. Which of the following metals reacts violently with water?
  23. Matte smelting is used in the extraction of
  24. A solution which resists change in its pH value on addition of acid/alkali is called the __________…
  25. Atomic __________ is a whole number for an element.
  26. Brinell Hardness Number (BHN) for talc is approximately in the range of
  27. For an ideal gas, Cp - Cv is
  28. Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an…
  29. Which of the following is not categorised as the ore agglomeration process?
  30. The only suitable method for hardening the low carbon steel is case hardening. Which of the following…