Practice Test: Question Set - 10
1. Chalcopyrite is the main ore of
- (A) Copper
- (B) Lead
- (C) Tin
- (D) Iron
2. Linde process of gas liquefaction employs
- (A) Exchange of heat with colder stream
- (B) Adiabatic expansion through a throttle valve (Joule-Thomson
expansion)
- (C) Adiabatic expansion against a piston or in a turbine
- (D) Merely compressing the gas beyond its critical pressure
3. Pig iron is produced by blast furnaces in India using mostly the iron ore named
- (A) Hematite
- (B) Magnetite
- (C) Siderite
- (D) Chalcopyrite
4. __________ is a thermosetting plastic.
- (A) Polyvinyl chloride
- (B) Polythene
- (C) Bakelite
- (D) Teflon
5. Lubricating greases are a mixture of
- (A) Mineral oil, soap and additives
- (B) Mineral oil and metallic soap
- (C) Mineral oil and fatty oil
- (D) Fatty oil and metallic soap
6. Antibiotic
- (A) Inhibits/destroys the growth of microorganisms
- (B) Is used as a pain reliever
- (C) Is an antimalarial
- (D) Is an anaesthetic
7. Which of the following fuel gases contains maximum amount of carbon monoxide?
- (A) Coke oven gas
- (B) Water gas
- (C) Blast furnace gas
- (D) L.D. converter gas
8. Digestion of wood-base materials (for manufacture of pulp) is done to
- (A) Remove lignin
- (B) Produce long fibres
- (C) Prevent deterioration on storage
- (D) None of these
9. __________ process is used for producing soda ash.
- (A) Chamber
- (B) Chance
- (C) Tromp
- (D) Solvay
10. Thermosetting plastic materials
- (A) Can be repeatedly melted
- (B) Is useful for melt casting
- (C) Cannot be melted after forming
- (D) Is useful for spinning
11. Starting material for the production of butadiene in India is
- (A) Naphthalene
- (B) Benzol
- (C) Ethyl alcohol
- (D) Phthalic anhydride
12. Pick out the wrong statement.
- (A) Low intensity explosives are also called
propellants, whereas high intensity explosive are called detonators
- (B) Gun powder comprises of 75% salt petre, 15% charcoal and 10% sulphur
- (C) Lead azide is a popular military explosive
- (D) TNT is a hygroscopic explosive having very high
melting point and is non-toxic to human being
13. Main constituents of cotton fiber is
- (A) Lignin
- (B) Cellulose
- (C) Starch
- (D) Gelatine
14. Rancidity of the fatty oil can be reduced by its
- (A) Decoloration
- (B) Hydrogenation
- (C) Oxidation
- (D) Purification
15. Chrome tanning and vegetable tanning are done for
- (A) Light & heavy leather respectively
- (B) Heavy & light leather respectively
- (C) Both light & heavy leather
- (D) Neither light nor heavy leather
Next Tests:
Blogger Comment
Facebook Comment