Q. The two rolls in a two high rolling mills are of __________ size.

View solution

Q. The welding process used in joining mild steel shanks to high speed drills, is

View solution

Q. The mode of deformation of the metal during spinning is

View solution

Q. The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as

View solution

Q. Fin is a casting defect which is due to thin projections of metal not intended as a part of casting.

View solution

Q. The process of increasing the cross-section of a bar at the expense of its length, is called

View solution

Q. In TIG arc welding, the welding zone is shielded by an atmosphere of

View solution

Q. The metal extrusion process is generally used for producing

View solution

Q. The operation of giving impressions of figures, letters or designs on sheet metal parts, is known as embossing.

View solution

Q. In a gas welding of mild steel using an oxy-acetylene flame, the total amount of acetylene consumed is 10 litre. The oxygen consumption from the cylinder is

View solution

Q. The sand used for making cores is

View solution

Q. Sand wash is a casting defect which

View solution

Q. Cold working distorts grain structure and does not provide an appreciable reduction in size.

View solution

Q. Cast iron and steel pipes are produced by

View solution

Q. The acetylene cylinder is usually painted with

View solution

Q. In order to ram the sand harder at the back of the mould and softer on the pattern face, a __________ is used.

View solution

Q. The property of sand due to which the sand grains stick together, is called

View solution

Q. The temperature produced by oxy-hydrogen flame is about

View solution

Q. The process of decreasing the cross-section of a bar and increasing its length, is called

View solution

Q. A casting defect which occurs due to improper venting of sand is known as

View solution