Workshop Technology MCQ Question with Answer

Workshop Technology MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 8
In arc welding, the electric arc is produced between the work and the electrode by

Flow of current
Contact resistance
All of these

Question No : 9
Riddle is used for

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

Question No : 10
The fullers are used

For finishing flat surfaces
For necking down a piece of work
For punching a hole
To finish the punched hole

Question No : 11
The surface to be left unmachined is marked on the pattern by

Red colour
Yellow colour
Black colour
Blue colour

Question No : 12
In welding copper alloys with TIG arc welding

Direct current with straight polarity is used
Direct current with reversed polarity is used
Alternating current is used
Any one of these

Question No : 13
In forehand welding, the angle between the welding torch and the work is ________ as compared to backhand welding.

None of these

Question No : 14
A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?

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