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

Mechanical Engineering : Workshop Technology - Quiz(MCQ)

The upper and bottom rolls rotate in the same direction whereas the middle roll rotate 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.

All of the above

Correct Answer : Option (A) : The upper and bottom rolls rotate in the same direction whereas the middle roll rotate in opposite direction.

Recently Updated in Workshop Technology Questions

In __________ welding, the weld may be made either from left to right or from right to left.

fore-hand

vertical

back-hand

None of the above

Correct Answer : vertical

In a four high rolling mill, there are four rolls out of which

two are working rolls and two are backing up rolls

three are working rolls and one is backing up roll

one is working roll and three are backing up rolls

All of the above

Correct Answer : two are working rolls and two are backing up rolls

Galvanising is a

zinc diffusion process

process of coating zinc by hot dipping

process used for making thin phosphate coating on steel

None of the above

Correct Answer : process of coating zinc by hot dipping