Chemical Engineering Subcategories

Chemical Engineering	Chemical Reaction
Polymer Technology	Fuels and Combustion
Refractory Technology	Fluid Mechanics for Chemical
Thermodynamics for Chemical	Materials and Construction
Fertilizer Technology	Chemical Environmental Engineering

Containers made of high silicon cast iron (14% Si) are not suitable for the storage of ____________________?

A. Acetic acid
B. Benzoic & boric acids
C. Phosphoric acid (95%) & sulphuric acid (95%)
D. Hydrochloric acid (concentrated)

Alinco, which is a aluminium-cobalt-nickel steel, is used for making __________________?

A. Surgical instruments
B. Powerful magnets
C. Chemical equipments
D. Boiler tubes

Which of the following comprises of hydrocarbons ?

A. Mica flakes
B. Glass
C. Rubber
D. None of these

The softest material just next to talc in the Mho’s scale is___________________?

A. Quartz
B. Gypsum
C. Feldspar
D. Fluorite

‘Age hardening’ of duralumin is due to____________________?

A. Copper
B. Magnesium
C. Both A. & B.
D. Neither A. nor B.

In cold working of metal as compared to its hot working____________________?

A. Cracks and blow holes are eliminated
B. Ductility and impact strength improves
C. Appreciable strain hardening is produced
D. Yield stress, hardness and fatigue strength is not at all affected

Spark plugs are made of______________________?

A. High alumina ceramic
B. Metallic carbides
C. Corundum
D. Carborundum

The crystal structure of most of the common metals is_____________________?

A. Orthorhombic
B. Cubic
C. Hexagonal
D. None of these

Lead pipe is_____________________?

A. Especially resistant to solutions containing H2SO4
B. Usually joined by burning (e.g. by melting to adjacent pieces with a torch)
C. Having very low elastic limit resulting in permanent deformation from either mechanical or
thermal strain

Cast iron is having very high ___________________?

A. Proximity between its elastic limit and ultimate breaking strength
B. Ductility
C. Tensile strength
D. All A., B. and C.