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Energy of the sun arises mainly from __________ reactions.

A. Fusion

B. Fission

C. Combustion

D. None of these

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  2. 'Amortization' in respect of financial obligation of a company means the
  3. The life of a ball bearing is inversely proportional to
  4. For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = - 60000 J . mole-1 . If a system…
  5. Pipelines carrying various utilities in chemical industries are identified by their colour codes. The…
  6. The following type of bonding is strongly directional in solids.
  7. Damage to metal surface by mechanical action is called
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  12. Use of flux during soldering is done to
  13. On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the…
  14. The ratio of the shear stress to the principal stress on a principal plane is
  15. Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat…
  16. On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate…
  17. Fibrous fracture is normally encountered in the __________ materials.
  18. Corona discharge is related to the operation of a/an
  19. __________ of air does not increase with increase in temperature.
  20. When an isolated thermodynamic system executes a process,
  21. The activity of pure hydrogen gas at 1000°C and 5 atm pressure
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  24. Unit of surface tension in S.I. unit is
  25. Out of the following, the best material capable of withstanding shock & vibration without the danger…
  26. Pick out the wrong statement about coating/electroplating of metals.
  27. A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer…
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  29. Heating of ferromagnetic materials to a temperature above Curie temperature makes it
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