Chemical Engineering MCQs

6108 MCQs  (Page 126 of 611)

Rotary kiln is not involved in the production of___________________?
A. Cement
B. Lime from limestone
C. Slaked lime from quick lime
D. None of these
Plasticisers are added to paints to______________________?
A. Make it corrosion resistant
B. Make glossy surface
C. Give elasticity & prevent cracking of the film
D. Increase atmospheric oxidation
BHC (Benzene hexachloride) is made by the chlorination of benzene_____________________?
A. Which is an addition reaction
B. Which is a substitution reaction
C. In absolute dark
D. In presence of sunlight
The combustion reaction, C + O2 = CO2, is__________________?
A. Exothermic
B. Endothermic
C. Autocatalytic
D. None of these
Styrene-butadiene-rubber (SBR) as compared to natural rubber has________________?
A. Poorer tensile strength
B. Poorer resistance to oxidation
C. Greater amount of heat build-up under heavy loading
D. All a , b. and c.
Impurities present in brine is normally removed by treatment with ?
A. Nh3 and co2
B. Lime and soda ash
C. Lime, ammonia and carbon
D. All a , b. and c.
Producer gas consists mainly of________________________?
A. Co, co2 n2, h2
B. Co, h2
C. H2, ch4
D. C2h2, co2, h2