Chemical Process MCQs

Chemical Engineering Objective Questions

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176. Comparing sulphate process with sulphite process, we find that __________ in the later.

A. Both temperature & pressure in the former is less than that

B. Both temperature & pressure in the former is more than that

C. Temperature is more in the former whereas pressure is more

D. Pressure is more in the former whereas temperature is less

177. Pick out the wrong statement.

A. Strongly caking coal should not be used in the Lurgi gasifier

B. Acetylene gas can not be used for illumination purpose

C. Water gas is called blue gas because of the color of the flame, when it is burnt

D. Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

178. Which of the following sugars is the sweetest?

179. Polythene is a/an __________ polymerisation product.

B. Condensation

C. Thermosetting

D. None of these

180. Enzymes are

A. Proteins with high molecular weight (around 10, 000)

B. Derived from living organisms

C. Catalyst for temperature sensitive reactions

D. All of the above

181. Low purity oxygen is used for

A. L.D. steel making

B. Cutting and welding of metals

C. Medicinal purposes

D. Chemical oxidation processes

182. Triple superphosphate is manufactured by reacting

A. Phosphate rock with phosphoric acid

B. Phosphate rock with sulphuric acid

C. Phosphate rock with nitric acid

D. Ammonium phosphate with phosphoric acid

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