Phenol and formaldehyde are polymerised to a resultant product known as

Related MCQs

• The product of blast furnace is known as
• The product of a cupola known as
• A non-crystalline polymer which can be stretched to more than twice its original length and which contracts quickly on releasing the load, is known as
• A material which undergoes no deformation till its yield point is reached and then it flows at a constant stress is known as
• Any process of heating and cooling steel that produces a rounded or globular from of carbide is known as
• The process in which steel is heated 20? to 40?C below the lower critical temperature, held there for a prolonged period and then allowed to cool slowly in the furnace is known as
• The operation of cutting out flat areas to some desired shape and which is generally the first step in a series of operations is known as
• Process of making a thin phosphate coating on steel to act as a base or primer for enamels and paints in known as
• Plastic deformation which is carried out in a temperature region and over a time interval such that the strain hardening is not relieved is known as
• When metal is deformed by cold work, severe stresses known as residual stresses are undesirable and to remove them