Practice Test: Question Set - 25
1. In the Lurgi coal gasifier
- (A) Coking coals cannot
be used
- (B) Low carbon conversion
efficiency is achieved
- (C) Entrainment of solids
is higher
- (D) Large quantity of
coal can be processed
2. Thermosetting materials
- (A) Are cross-linked
molecules
- (B) Soften on application
of heat
- (C) Are solvent soluble
- (D) None of these
3. Cement mainly contains
- (A) CaO, SiO2,
Al2O3
- (B) MgO, SiO2,
K2O
- (C) Al2O3,
MgO, Fe2O3
- (D) CaO, MgO, K2O
4. Silicone is a/an
- (A) Thermoplastic
- (B) Inorganic polymer
- (C) Monomer
- (D) None of these
5. Claude process of gas liquefaction employs
- (A) Merely compression of
gas beyond its critical pressure
- (B) Joule-Thomson
expansion cooling
- (C) Heat
exchange with colder stream
- (D) Adiabatic
expansion against a piston or in a turbine
6. Liquor poisoning generally occurs due to the presence of __________ in it.
- (A) Ethyl alcohol
- (B) Impurities
- (C) Methyl alcohol
- (D) Carbonic acid
7. Cellulose percentage in bamboo fibre is about
- (A) 10
- (B) 20
- (C) 50
- (D) 85
8. The process involved in converting rubber into a thin sheet or coating it on fabric is called
- (A) Extrusion
- (B) Mastication
- (C) Calendaring
- (D) Vulcanization
9. Neoprene is the trade name of
- (A) Polyurethane
- (B) Phenol
formaldehyde
- (C) Polychlorophrene
- (D) Styrene-butadiene
rubber
10. Sulphur removal by heating of pyrite ore in presence of air is called its
- (A) Reduction
- (B) Roasting
- (C) Calcination
- (D) Smelting
11. Analgesic drugs are
- (A) Pain
relievers
- (B) Antibiotics
- (C) Used in the treatment
of T.B.
- (D) Used in the treatment
of typhoid
12. Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.
- (A) 7-14 and 14-30
- (B) 7-14 and 40-50
- (C) 14 - 30 and 40-50
- (D) 10 - 20 and 40 - 50
13. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.
- (A) Ostwald's
- (B) Bosch
- (C) Solvay
- (D) Haber's
14. Saponification number of an oil or fat
- (A) Gives an idea about
its molecular weight
- (B) Is inversely
proportional to its molecular weight
- (C) Detects its
adulteration
- (D) All (a), (b) &
(c)
15. Pick out the wrong statement. Iodine value of an oil or fat is
- (A) The number of grams
of iodine taken up by 100 gm of oil or fat
- (B) A measure of its
unsaturation
- (C) Helpful in findings
its adulteration & its suitability for making soap
- (D) Independent of the
type of oil, whether it is drying or non-drying
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