Furnace Technology Turn down ratio of a burner Should be 1:1 for a batch type furnace. Is normally much more for a continuous furnace as compared to a batch furnace Is the ratio of maximum to minimum permissible heat input rates Should be as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. Is normally much more for a continuous furnace as compared to a batch furnace Is the ratio of maximum to minimum permissible heat input rates Should be as low as possible i.e., 1 : 2 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Recuperator is Heavier than regenerator meant for the same duty Not used for fuel gas preheating A continuous waste heat recovery equipment An intermittant waste heat recovery equipment Heavier than regenerator meant for the same duty Not used for fuel gas preheating A continuous waste heat recovery equipment An intermittant waste heat recovery equipment ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent. < 8 < 10 < 5 < 2 < 8 < 10 < 5 < 2 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 44119 65-70 25-30 45-50 44119 65-70 25-30 45-50 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? Ceramic recuperator Metallic recuperator None of these Regenerator Ceramic recuperator Metallic recuperator None of these Regenerator ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators compared to metallic recuperators for the same duty Are lighter Occupy more space Have higher pressure differential between flue gas & air side Are less costly Are lighter Occupy more space Have higher pressure differential between flue gas & air side Are less costly ANSWER DOWNLOAD EXAMIANS APP
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