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Green coal, in order to be burnt, must be

A. Heated sufficiently

B. Burnt in excess air

C. Heated to its ignition point

D. Burnt as powder

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

You can do it
  1. Which of the following statement is correct?
  2. The behaviour of coal in a furnace is determined by
  3. Vacuum for reciprocating steam engines compared to steam turbines is
  4. In order to compare the capacity of boilers, the feed water temperature and working pressure are taken…
  5. The number of flue tubes in Lancashire boiler is
  6. The cylinder condensation or missing quantity may be reduced by
  7. Which of the following statement is correct?
  8. Calorific value of coal is of the order of
  9. Which of the following is not a boiler mounting?
  10. An economiser in a boiler
  11. Thermal equilibrium means that the flow of steam is
  12. Pick up wrong statement about desired properties of a good fuel
  13. The function of a piston rod is
  14. Reheating of steam in a turbine
  15. The function of injector used in small capacity boilers is to
  16. 1 kg.m is equal to
  17. Stage efficiency is also known as
  18. Maximum energy loss in a boiler occurs due to
  19. The Locomotive boiler has
  20. Hard coke is used in
  21. The effect of friction on the flow of steam through a nozzle is to
  22. The efficiency of steam turbines may be improved by
  23. The selection of type and size of a steam boiler depends upon
  24. In accelerated circulation type boiler
  25. With increase in load, radiant superheater has
  26. On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented…
  27. An ideal regenerative cycle is
  28. When the inlet pressure of steam is equal to the exit pressure, then
  29. Adiabatic process is
  30. The function of a crosshead is to guide motion of the _________ and to prevent it from bending.