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

Condensation polymerisation of caprolactam is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6?

A. -20 to 25
B. 50 to 75
C. 100 to 150
D. 250-280

Density of low density polythene is about ____________ gm/c.c?

A. 0.38
B. 0.56
C. 0.81
D. 0.91

Poly-tetra-fluoro ethylene (PTFE) is known as_________________?

A. Dacron
B. Teflon
C. Bakelite
D. Celluloid

Nylon-66 is manufactured from ____________________?

A. Adipic acid and Hexamethylene diamine
B. Caprolactam
C. Maleic anhydride and Hexamethylene diamine
D. Dimethyl terephthalate (DMT) and ethylene glycol

Properties of a polymer is affected by the____________________?

A. Chain length
B. Intermolecular forces
C. Both A. and B.
D. None of these

In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer ?

A. PTFE
B. Buna-S
C. PMMA
D. Polycaprolactam

In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is________________?

A. Terylene
B. Polybutadiene
C. PVC
D. Polypropylene

Polycondensation reaction of polymerisation ___________________?

A. Does not produce linear polymers
B. Produces only thermoplastic material
C. Produces epoxy polymers
D. Does not need any catalyst

Cellulose content in bamboo fibre is about ______________ percent?

A. 10
B. 20
C. 50
D. 85

Which of the following is generally not drawn into fiber ?

A. Polyamide
B. Unsaturated polyesters
C. Saturated polyesters
D. Polyacrylonitrile