Related Questions

This is used in applications for nonferrous construction:
A Copper tubing
B Steel pipe
C PVC pipe
D Iron tubing
The casting method adopted for ornaments and toys of nonferrous alloys, is
A Permanent mould casting
B Slush casting
C Die casting
D Centrifugal casting
The trade name of a nonferrous cast alloy composed of cobalt, chromium and tungsten is called
A Ceramic
B Stellite
C Diamond
D Cemented carbide
Carborundum is another name of
A Silicon carbide
B Silicon oxide
C Calcium carbide
D Calcium oxide
Carborundum consists mainly of
A Bauxite
B Silicon carbide
C Boron carbide
D Calcium carbide
The main constituent of carborundum is __________ carbide.
A Calcium
B Silicon
C Boron
D Aluminium
The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as
A Cementation process
B Crucible process
C Bessemer process
D Open hearth process
Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically
A Polymethyl methacrylate (PMMA)
B Polytetraflouroethylene(PTFE)
C Polycarbonates
D Phenolic resins
Wax used for making candle is chemically a mixture of
A Aliphatic hydrocarbons
B Aromatic hydrocarbons
C Cyclic hydrocarbons
D Aliphatic and aromatic hydrocarbons
Which of the following metals has least melting point ?
A Gold
B Silver
C Mercury
D Copper

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