Workshop Technology The advantage of Thermit welding is that All parts of the weld section are molten at the same time Results in a minimum problem with internal residual stresses Weld cools almost uniformly All of these All parts of the weld section are molten at the same time Results in a minimum problem with internal residual stresses Weld cools almost uniformly All of these ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In arc welding, the temperature of heat produced by the electric arc is of the order of 4000°C to 5000°C 3000°C to 4000°C 5000°C to 6000°C 6000°C to 7000°C 4000°C to 5000°C 3000°C to 4000°C 5000°C to 6000°C 6000°C to 7000°C ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The temperature of the inner luminous cone of neutral flame is about 1250°C 2100°C 1000°C 3200°C 1250°C 2100°C 1000°C 3200°C ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The current in electric resistance welding can be regulated by Changing the secondary turns of the transformer Changing the primary turns of the transformer Any one of the listed here Varying the input supply Changing the secondary turns of the transformer Changing the primary turns of the transformer Any one of the listed here Varying the input supply ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology V-block is used to Check the trueness of flat surfaces Locate centres of round rods Check the surface roughness None of these Check the trueness of flat surfaces Locate centres of round rods Check the surface roughness None of these ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded) 6 t 3 t √t 1.5 t 6 t 3 t √t 1.5 t ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS