Furnace Technology Thermal efficiency of furnaces can be improved by All of these Minimising heat losses from furnace walls Maintaining proper draught Waste heat recovery from flue gas All of these Minimising heat losses from furnace walls Maintaining proper draught Waste heat recovery from flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology If fuel and air are mixed ahead of the burner, it is called a/an __________ burner. Rotary Outside mixing type Premix Diffusion Rotary Outside mixing type Premix Diffusion ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent. 85 15 40 70 85 15 40 70 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Specific heating capacity of a furnace is expressed as Weight heated/hr/furnace volume None of these Weight heated/furnace volume Weight heated/hr Weight heated/hr/furnace volume None of these Weight heated/furnace volume Weight heated/hr ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum heat transfer in high temperature furnaces is by Convection Either A, B or C; depends on the type of furnace Conduction Radiation Convection Either A, B or C; depends on the type of furnace Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
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