210) Which of the following is correct ? (where p_a = Actual mean effective pressure, p_m = Theoretical mean effective pressure, and K = Diagram factor)

211) The working pressure range for a La-Mont boiler is

212) The draught in locomotive boilers is produced by a

213) The ratio of heat actually used in producing the steam to the heat liberated in the furnace is known as equivalent evaporation from and at 100 Degree C.

214) There is about 15 to 20% of coal saving when an economiser is used in a boiler.