Chemical Process Design and Simulation Online Practice - Set 06

Practice Test: Question Set - 06

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1. Sizing material is incorporated in paper to

(A) Impart resistance to penetration by liquids

(B) Increase its thickness

(C) Increase its flexibility & opacity

(D) Increase its brightness

Answer: Option A

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2. Widely used method for the conditioning of boiler feed water is the

(A) Cold lime process

(B) Coagulation

(C) Hot-lime soda process

(D) Sequestration

Answer: Option C

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3. Phenol formaldehyde is produced by condensation polymerization. It is also known as

(A) Teflon

(B) Bakelite

(C) Polyester

(D) Nylon-66

Answer: Option B

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4. Shrinkage volume in cement setting does not depend upon the

(A) Sand to cement ratio

(B) Water to cement ratio

(C) Ambient temperature fluctuation

(D) Drying period

Answer: Option A

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5. What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

(A) Cl₂ & Na

(B) Cl₂ & H₂

(C) O₂ & H₂

(D) Cl₂, H₂ & NaOH solution

Answer: Option D

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6. Hydrolysis of sugar is called

(A) Hydration

(B) Inversion

(C) Esterification

(D) None of these

Answer: Option B

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7. Chloramines are used in water treatment for

(A) Disinfection and control of taste & odour

(B) Corrosion control

(C) Removing turbidity

(D) Control of bacteria

Answer: Option A

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8. Commercially ethylene is produced from naphtha by

(A) Catalytic cracking

(B) Catalytic dehydrogenation

(C) Pyrolysis

(D) Hydrocracking

Answer: Option D

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9. Ethanol amine is produced using ammonia and

(A) Ethyl benzene

(B) Ethylene oxide

(C) Ethanol

(D) Ethane

Answer: Option B

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10. Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

(A) Chromium

(B) Arsenic

(C) Copper

(D) Manganese

Answer: Option C

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11. Ore concentration by froth floatation utilizes the __________ of ore particles.

(A) Density difference

(B) Wetting characteristics

(C) Terminal velocities

(D) None of these

Answer: Option B

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12. Yellow glycerine is made into white, using

(A) Activated carbon

(B) Diatomaceous earth

(C) Bauxite

(D) Bentonite

Answer: Option A

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13. Wet chlorine gas produced during electrolysis of brine is dehydrated by

(A) Spraying 66° Be H₂SO₄ counter current to the flow of the gas

(B) Passing it through a bed of diatomaceous earth

(C) Passing it through a bed of silica gel

(D) None of these

Answer: Option A

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14. Flux addition during smelting of ore is done to

(A) Remove impurities/gangue

(B) Enhance rate of reaction

(C) Accelerate reduction of ore

(D) Separate slag from metal

Answer: Option A

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15. Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.

(A) Coke and sand Coke and sand

(B) Brine and coal

(C) Coke and caustic soda

(D) None of these

Answer: Option B

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View All Answers

01. Answer: Option A
02. Answer: Option C
03. Answer: Option B
04. Answer: Option A
05. Answer: Option D
06. Answer: Option B
07. Answer: Option A
08. Answer: Option D
09. Answer: Option B
10. Answer: Option C
11. Answer: Option B
12. Answer: Option A
13. Answer: Option A
14. Answer: Option A
15. Answer: Option B

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