Workshop Technology The increase in hardness due to cold working, is called Flame hardening Work hardening Induction hardening Age hardening Flame hardening Work hardening Induction hardening Age hardening ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The surface to be left unmachined is marked on the pattern by Yellow colour Red colour Blue colour Black colour Yellow colour Red colour Blue colour Black colour ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Green sand is a mixture of 70% sand and 30% clay 50% sand and 50% clay 30% sand and 70% clay 90% sand and 10% clay 70% sand and 30% clay 50% sand and 50% clay 30% sand and 70% clay 90% sand and 10% clay ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In arc welding, the temperature of heat produced by the electric arc is of the order of 5000°C to 6000°C 3000°C to 4000°C 4000°C to 5000°C 6000°C to 7000°C 5000°C to 6000°C 3000°C to 4000°C 4000°C to 5000°C 6000°C to 7000°C ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as Permanent mould casting method Die casting method Slush casting method Centrifugal casting method Permanent mould casting method Die casting method Slush casting method Centrifugal casting method ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The draft or taper allowance on casting is generally 2 to 5 mm/m 5 to 10 mm/m 10 to 15 mm/m 1 to 2 mm/m 2 to 5 mm/m 5 to 10 mm/m 10 to 15 mm/m 1 to 2 mm/m ANSWER DOWNLOAD EXAMIANS APP
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