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 bottom and middle roll rotate in the same direction
The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction
Any one of the above

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
Riddle is used for

Reinforcement of sand in the top part of moulding box
Cleaning the moulding sand
Smoothing and cleaning out depressions in the mould
Moistening the sand around the edge before removing pattern

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
Linde welding uses

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

ANSWER DOWNLOAD EXAMIANS APP