21. In electric resistance welding, pressure is applied just after the completion of current.
TRUE
FALSE
✅ The correct answer is option A.
Workshop Technology MCQs
22. The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called
shearing
piercing
punching
blanking
✅ The correct answer is option C.
23. A mortise gauge is a
striking tool
planing tool
boring tool
marking tool
✅ The correct answer is option D.
24. A pattern is used to make the mould cavity for pouring the molten metal for casting.
Yes
No
✅ The correct answer is option A.
25. The binder commonly used in making oil sand, is
clay-type binder
organic-type binder
inorganic-type binder
any one of these
✅ The correct answer is option B.
26. Forming is the operation of removing metal to the desired shape from the edge of a plate.
Correct
Incorrect
✅ The correct answer is option B.
27. The diaphragm moulding machine is used to
ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
ram the sand harder at the back of the mould and softer on the pattern face
produce uniform packing of sand in the mould
give uniform sand hard
✅ The correct answer is option D.
28. A moving mandrel is used in
wiredrawing
tube drawing
metal cutting
forging
✅ The correct answer is option B.
29. The parts of circular cross-section which are symmetrical about the axis of rotation are made by
hot forging
hot spinning
hot extrusion
hot drawing
✅ The correct answer is option B.
30. When the weld is made from left to right, it is known as back-hand welding.
Agree
Disagree
✅ The correct answer is option A.