Percent elongation
Resilience
Freezing point
Strength
✅ The correct answer is option B.
Chemical Engineering MCQs
Thermocole (expanded polystyrene) is not used for
low temperature thermal insulation as in refrigerator and air conditioners.
accoustic control and ceiling for building.
high temperature thermal insulation in furnaces.
packing of delicate electronic gadgets.
✅ The correct answer is option C.
Plastic articles are normally produced by __________ moulding.
green sand
injection
shell
dry sand
✅ The correct answer is option B.
In polytropic process (PVn = constant), if n = 1; it means a/an __________ process.
A. Adiabatic
B. Reversible
C. Isothermal
D. None of these
✅ The correct answer is option C.
The principle applied in liquefaction of gases is
A. Adiabatic expansion
B. Joule-Thomson effect
C. Both A and B
D. Neither A nor B
✅ The correct answer is option C.
Joule-Thomson co-efficient depends on the
A. Pressure
B. Temperature
C. Both A & B
D. Neither A nor B
✅ The correct answer is option C.
Specific heat of a gas for a reversible adiabatic process is
A. Negative
B. Zero
C. Infinity
D. None of these
✅ The correct answer is option B.
A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of
siloxane elastomers.
polyamides.
vinyl polymers.
urea-formaldehyde resins.
✅ The correct answer is option D.
Which of the following is the lowest cost plastic commercially available ?
Polythene
Teflon
Bakelite
PVC
✅ The correct answer is option A.
Which of the following polymers belong to the class of formaldehyde resin ?
Melamine resins
Teflon
Dacron
None of these
✅ The correct answer is option A.