Manufacturing And Production Technology
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint.

None of these
Double riveted
Both (A) and (B)
Single riveted

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Manufacturing And Production Technology
Calculate the weld per minute, work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles ‘on’ and 2 cycles ‘off’ Power supply is at 50 Hz.

500 welds/min, 1250 mm/min
3000 welds/min, 75 mm/min
600 welds/min, 1500 mm/min
22 welds/min, 55 mm/min

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