Chemical Engineering MCQs

6108 MCQs  (Page 140 of 611)

Terylene is__________________?
A. Same as dacron
B. A polyester
C. Both a. & b.
D. Neither a. nor b.
Unsaturated oils compared to saturated oils have___________________?
A. Lower melting point & higher reactivity to oxygen
B. Higher melting point & higher reactivity to oxygen
C. Lower melting point & lower reactivity to oxygen
D. Higher melting point & lower reactivity to oxygen
Wax is a___________________?
A. Mixture of glycerides
B. Mixture of esters of polyhydric alcohols excepting glycerine
C. Liquid at room temperature
D. Mixture of glycerides of fatty acids
Ordinary glass is not a/an_________________?
A. Amorphous isotropic material
B. Supercooled liquid
C. Material with sharp definite melting point
D. Electrical insulator
Hydrochloric acid is also known as_________________?
A. Oil of vitriol
B. Muriatic acid
C. Strong organic acid
D. Green acid
Higher viscosity index of a lubricating oil denotes_______________?
A. Less changes in fluidity of oil with temperature
B. Substantially high change in fluidity of oil with temperature
C. Its unsuitability under varying temperature conditions
D. None of these
Reverse osmosis is normally used for the_______________?
A. Separation of isotopes of uranium from gaseous uranium hexafluoride
B. Separation of helium from natural gas
C. Desalination of brackish water to produce potable (drinking) water
D. Purification of oxygen