engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Power Engineering Boilers

In a boiler, feed water supplied per hour is 205 kg while coal fired per hour is 23 kg. The net enthalpy rise per kg of water is 145 kJ. If the calorific value of coal is 2050 kJ/kg, then boiler efficiency will be

1

56%

2

75%

3

48%

4

63%

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