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  1. Enzymes belong to the category of
  2. The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________…
  3. __________ cannot increase the fatigue strength of a material.
  4. The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________…
  5. Softening of hardened steel is done by its
  6. Which of the following performance characteristics of a S.I engine is not affected by the front end…
  7. The order of a chemical reaction
  8. Natural water contains approximately __________ percent of heavy water.
  9. Joule-Thomson co-efficient is the ratio of
  10. Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
  11. All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in…
  12. Air standard Otto cycle is more efficient than the diesel cycle for the same
  13. Which of the following is not a principal alloying element for the structural steel?
  14. Cast iron contains __________ percent carbon.
  15. Magnetic permeability of iron is increased by its
  16. At 100% relative humidity, the dew point temperature of moist air is
  17. Mild steel has __________ crystal lattice structure.
  18. Tin based white metals are used, where bearings are subjected to
  19. Larger length & diameter water pipes are made by
  20. The units of the rate constant for a second order reaction are
  21. The emf of a Deniell cell Zn | Zn2+ || Cu2+ | Cu can be increased by
  22. Particle nature of cathode rays is proved due to the fact that they
  23. Coating provided on the electrodes used in the arc welding is not expected to
  24. A pycnometer is used for the measurement of
  25. The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
  26. Which one is neutral in character?
  27. Induced draft fans provided in large thermal power plant boilers have __________ blades.
  28. Heating of ferromagnetic materials to a temperature above Curie temperature makes it
  29. Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the…
  30. Desalination of water