Piercing is an operation of cutting
In bending operation, the metal takes the shape of a punch.
In welding aluminium with TIG arc welding, alternating current is used.
In fore-hand welding, the angle between the welding torch and the work is __________ as compared to back-hand welding.
The surface to be machined is marked on the pattern by
Structural sections such as rails, angles, I-beams are made by
In a __________ , two or more operations are performed simultaneously at the single stroke of the ram.
The current in electric resistance welding can be regulated by
During hot working of metals
In permanent mould casting method
Which one of the following material will require the largest size of riser for the same size of casting?
Which of the following statement is wrong?
Shift is a casting defect which
The cold working of metals is carried out
Lancing is the operation of
Linde welding uses
A process used for making thin phosphate coating on steel is called parkerising.
The advantage of thermit welding is that
In electric resistance welding, pressure applied varies from
In a __________ , the molten metal is poured and allowed to solidify while the mould is revolving.
During cold working process
The minimum size of a billet iscm xcm.
A rip saw
In a cold chamber die casting machine, only non-ferrous alloys with __________ are casted.
When a pattern is made in three parts, the __________ is known as a drag.
In electric resistance welding, pressure is applied just after the completion of current.
The consumable electrode is used in
In a compound die
During drawing operation, the states of stress in cup would include
Notching is the operation of
The purpose of a gate is to
The recrystallisation temperature of steel is
A gimlet is a __________ tool.
Slick is used for repairing and finishing the mould.
In order to deliver molten metal from pouring basin to gate, a __________ is used.
Riddle is used for
When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by
In welding magnesium with TIG arc welding, direct current with __________ is used.
The welding set up is said to have reversed polarity when the work is connected to the negative terminal and the electrode holder to the positive terminal.
A mortise gauge is a
Shrinkage allowance is made by adding to external dimensions and subtracting from internal dimensions.
Scribing block is used to
The operation of cutting a sheet of metal in a straight line along the length, is known as
A file removes the metal during
A diamond pointed chisel is used for cutting
When two pieces of different metals are to be welded by projection welding, then the projection should be made on the metal piece having __________ conductivity.
A basic hole is one whose
The maximum flame temperature occurs
V-block is used to
A hacksaw blade cuts on the