Q. Cores are used to

View solution

Q. The drawing down is a process of __________ the cross-section of a bar.

View solution

Q. During hot working of metals

View solution

Q. When a pattern is made in three parts, the __________ is known as a drag.

View solution

Q. Shrinkage allowance is made by adding to external dimensions and subtracting from internal dimensions.

View solution

Q. The shrinkage allowance for cast iron pattern is

View solution

Q. An oxidising flame is obtained when equal volumes of oxygen and acetylene are supplied.

View solution

Q. A neutral flame is obtained by supplying

View solution

Q. An oxidising process used for aluminium and magnesium articles is called

View solution

Q. For welding plates of thickness less than 5 mm, its edges

View solution

Q. In order to check the clearance between two mating surfaces, a __________ gauge should be used.

View solution

Q. When the weld is made from left to right, it is known as back-hand welding.

View solution

Q. The current in electric resistance welding can be regulated by

View solution

Q. In a cold chamber die casting machine, only non-ferrous alloys with __________ are casted.

View solution

Q. A mortise gauge is a

View solution

Q. In spot welding, the spacing between two spot weld should not be less than

View solution

Q. Aluminium is the best material for making patterns because it is

View solution

Q. Gagger is used for cleaning the moulding sand.

View solution

Q. In sheet metal work, the cutting force on the tool can be reduced by

View solution

Q. In order to get uniform thickness of the plate by rolling process, one provides

View solution