Furnace Technology Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. 1050 350 750 1250 1050 350 750 1250 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Advantages of use of preheated combustion air are Saving in fuel consumption Reduction in scale losses Increase in flame temperature All of these Saving in fuel consumption Reduction in scale losses Increase in flame temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The method of Lobo and Evans is concerned with the calculation of the Mass transfer co-efficient Heat absorption in radiant section of a furnace Heat transfer by forced convection in a reboiler Heat transfer in vacuum condensers Mass transfer co-efficient Heat absorption in radiant section of a furnace Heat transfer by forced convection in a reboiler Heat transfer in vacuum condensers ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by Oxygen enrichment of combustion air Preheating the fuel gas All of these Preheating the combustion air Oxygen enrichment of combustion air Preheating the fuel gas All of these Preheating the combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The resistance furnace produces heat by the Combination of induced current and skin effect Electric arc struck between electrodes and the charge None of these Flow of current through a heating element Combination of induced current and skin effect Electric arc struck between electrodes and the charge None of these Flow of current through a heating element ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following accentuates clinker-ing troubles on furnace grate burning coal? All of these Thick firebed and preheated primary air Low forced draft & fuel bed temperature Low reactivity of carbonised residue containing high proportion of iron & sulphur All of these Thick firebed and preheated primary air Low forced draft & fuel bed temperature Low reactivity of carbonised residue containing high proportion of iron & sulphur ANSWER DOWNLOAD EXAMIANS APP
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