Furnace Technology The purpose of controlling the furnace atmosphere is to prevent surface attack by Either of the above Sulphur penetration Oxidation/scaling Decarburising Either of the above Sulphur penetration Oxidation/scaling Decarburising ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Causing metal embrittlement All of these Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement All of these Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Decarburisation of steel Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) All of these Affects its crystalline structure Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) All of these Affects its crystalline structure ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Calcination of limestone to produce lime is done in a __________ kiln. Vertical shaft Both B and C Tunnel Rotary Vertical shaft Both B and C Tunnel Rotary ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Pot furnace which is either regenerative or recupterative, is used in the manufacture of Potteries Stainless steel Refractory bricks Glass Potteries Stainless steel Refractory bricks Glass 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. Resistance Arc Low frequency induction None of these Resistance Arc Low frequency induction None of these ANSWER DOWNLOAD EXAMIANS APP
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