Workshop Technology In arc welding, the temperature of heat produced by the electric arc is of the order of 3000°C to 4000°C 4000°C to 5000°C 5000°C to 6000°C 6000°C to 7000°C 3000°C to 4000°C 4000°C to 5000°C 5000°C to 6000°C 6000°C to 7000°C ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The cutting edge of a chisel should be Case hardened Hardened and tempered Tempered Hardened Case hardened Hardened and tempered Tempered Hardened 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 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 The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction Any one of the above 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 The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology For welding plates of thickness less than 5 mm, its edges Should be bevelled to a single-V or U-groove Do not require bevelling Should have a double-V or U-groove on one side Should have a double-V or U-groove on both sides Should be bevelled to a single-V or U-groove Do not require bevelling Should have a double-V or U-groove on one side Should have a double-V or U-groove on both sides ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The increase in hardness due to cold working, is called Age hardening Flame hardening Induction hardening Work hardening Age hardening Flame hardening Induction hardening Work hardening ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The hot working of metals is carried out Above the recrystallisation temperature At the recrystallisation temperature Below the recrystallisation temperature At any temperature Above the recrystallisation temperature At the recrystallisation temperature Below the recrystallisation temperature At any temperature ANSWER DOWNLOAD EXAMIANS APP