Workshop Technology In arc welding, the electric arc is produced between the work and the electrode by Contact resistance All of these Voltage Flow of current Contact resistance All of these Voltage Flow of current ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology During hot working of metals Mechanical properties are improved due to refinement of grains Grain structure of the metal is refined All of the listed here Porosity of the metal is largely eliminated Mechanical properties are improved due to refinement of grains Grain structure of the metal is refined All of the listed here Porosity of the metal is largely eliminated ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct? Any one of the above The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction The bottom and middle roll rotate in the same direction The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction Any one of the above The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction The bottom and middle roll rotate in the same direction The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Spot welding is used for welding Butt joints in plates having 0.025 mm to 1.25 mm thickness Lap joints in plates having 0.025 mm to 1.25 mm thickness Butt joints in plates having thickness above 3 mm Lap joints in plates having thickness above 3 mm Butt joints in plates having 0.025 mm to 1.25 mm thickness Lap joints in plates having 0.025 mm to 1.25 mm thickness Butt joints in plates having thickness above 3 mm Lap joints in plates having thickness above 3 mm ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In arc welding, the temperature of heat produced by the electric arc is of the order of 6000°C to 7000°C 4000°C to 5000°C 5000°C to 6000°C 3000°C to 4000°C 6000°C to 7000°C 4000°C to 5000°C 5000°C to 6000°C 3000°C to 4000°C ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The cutting edge of a chisel should be Hardened and tempered Case hardened Tempered Hardened Hardened and tempered Case hardened Tempered Hardened ANSWER DOWNLOAD EXAMIANS APP
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