EXAMIANS
The reason for excessive clinker formation in gas producers is the
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Ceramic recuperators compared to metallic recuperators for the same duty
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The purpose of controlling the furnace atmosphere is to prevent surface attack by
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The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace.
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Artificial draught produced by a fan in the furnace can be controlled by the
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In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of
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Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of
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While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C.
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The function of an economiser in a boiler is to preheat the
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The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent.
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