Workshop Technology Questions

• Cast iron and steel pipes are produced by
• Green sand is a mixture of
• The vertical welding do not require plate edge preparation upto 16 mm thickness.
• The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as
• Which of the following statement is wrong?
• The welding process used to join the ends of two pipes of uniform cross-section, is
• For arc welding
• The dowels are
• In a four high rolling mill, the diameter of backing up rolls is __________ the diameter of working rolls.
• Fin is a casting defect which is due to thin projections of metal not intended as a part of casting.
• Seam weiding is a
• For smoothing and cleaning out depressions in the mould, a __________ is used.
• The algebraic difference between the maximum limit and the basic size is called
• When the dimension is expressed as , then the tolerance is
• Projection welding is a
• The punch and die set up is __________ for punching and piercing operation.
• The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as
• In a simple die
• The instrument used to measure external and internal diameter of shafts, thickness of parts and depth of holes, is
• The adhesiveness is the property of a sand due to which