Furnace Technology Turn down ratio of a burner 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 as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. 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 as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? Ceramic recuperator Regenerator Metallic recuperator None of these Ceramic recuperator Regenerator Metallic recuperator None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace. Low frequency induction Resistance Arc High frequency induction Low frequency induction Resistance Arc High frequency induction ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Specific heating capacity of a furnace is expressed as Weight heated/hr Weight heated/hr/furnace volume Weight heated/furnace volume None of these Weight heated/hr Weight heated/hr/furnace volume Weight heated/furnace volume None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace. Low frequency induction Arc None of these Resistance Low frequency induction Arc None of these Resistance ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is a heat treatment furnace? Rotary kiln Annealing furnace Muffle furnace Reheating furnace Rotary kiln Annealing furnace Muffle furnace Reheating furnace ANSWER DOWNLOAD EXAMIANS APP
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