Workshop Technology A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct? 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 Any one of the above The bottom and middle roll rotate in the same direction ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology For gas welding, the pressure desired at the welding torch for acetylene is 7 to 103 kN/m² 560 to 840 kN/m² 280 to 560 kN/m² 70 to 280 kN/m² 7 to 103 kN/m² 560 to 840 kN/m² 280 to 560 kN/m² 70 to 280 kN/m² ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The purpose of a riser is to Deliver molten metal into the mould cavity Act as a reservoir for the molten metal Deliver the molten metal from pouring basin to gate Feed the molten metal to the casting in order to compensate for the shrinkage Deliver molten metal into the mould cavity Act as a reservoir for the molten metal Deliver the molten metal from pouring basin to gate Feed the molten metal to the casting in order to compensate for the shrinkage ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as Cold peening Extrusion Cold heading Hot piercing Cold peening Extrusion Cold heading Hot piercing ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The temperature at which the new grains are formed in the metal is called Eutectic temperature Recrystallisation temperature Lower critical temperature Upper critical temperature Eutectic temperature Recrystallisation temperature Lower critical temperature Upper critical temperature ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The temperature of the inner luminous cone of neutral flame is about 2100°C 3200°C 1000°C 1250°C 2100°C 3200°C 1000°C 1250°C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS