51. In order to maintain an oxidising atmosphere in a furnace, it should have
52. Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of
53. Which of the following furnaces will have maximum thermal efficiency?
54. An example of a periodic furnace is the
55. Blast furnace stoves are meant for heating
56. Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by
57. Neutral atmosphere is maintained in a/an __________ furnace.
58. The method of Lobo and Evans is concerned with the calculation of the
59. Pulverised fuel fired furnaces employ __________ fuel firing.
60. Combustion of fuel in a furnace with oxygen enriched air results in higher
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