Workshop Technology
The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

Less than 0.1 percent
More than 0.3 percent
Less than 0.3 percent
Anywhere between 0.1 to 1 percent

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Workshop Technology
Linde welding uses

Neutral flame and rightward technique
Carburising flame and rightward technique
Neutral flame and leftward technique
Oxidizing flame and leftward technique

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Workshop Technology
A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?

The bottom and middle roll rotate in the same direction
Any one of the above
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

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Workshop Technology
The purpose of a gate is to

Delivers molten metal from pouring basin to gate
Delivers molten metal into the mould cavity
Act as a reservoir for the molten metal
Feed the molten metal to the casting in order to compensate for the shrinkage

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