Practice Test: Question Set - 26
1. Coke used for the production of calcium carbide should have
- (A) Low ash content
- (B) Low
ignition temperature
- (C) High
electrical resistivity
- (D) All (a), (b) and (c)
2. Pick out the wrong statement.
- (A) Kraft method of pulp manufacture
can process all types of fibrous raw materials
- (B) Digestion time for
bagasse is less than that for wood base materials
- (C) Both temperature and
pressure in the digestor is less in case of the sulphite method as compared to
that in the sulphate method
- (D) None of these
3. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
- (A) Exothermic
- (B) Endothermic
- (C) Catalytic
- (D) Autocatalytic
4. Hydrogenation of edible vegetable oils
- (A) Is
an exothermic reaction
- (B) Increases their
melting point
- (C) Is done in presence
of nickel catalyst
- (D) All (a), (b) and (c)
5. H2S is scrubbed from refinery gases by absorption using
- (A) Dilute H2SO4
- (B) Ethanol amine
- (C) Chilled water
- (D) Tri-butyl phosphate
6. Which of the following is an endothermic reaction?
- (A) Absorption of SO3 in
98% H2SO4
- (B) C + H2O =
CO + H2
- (C) Thermal
dissociation of iron pyrites
- (D) Both (b) and (c)
7. Pasteurisation of milk means
- (A) Removal of fatty and
albuminous substance from it
- (B) Killing
of organisms present in it by heating it at controlled temperature without
changing its natural characteristics
- (C) Inhibiting
the growth of micro-organisms without killing them
- (D) None of these
8. Alcohol is produced by the
- (A) Oxidation
of an aldehyde
- (B) Hydrolysis
of an ether
- (C) Esterification
of a fat
- (D) None of these
9. Sucrose is a disaccharide consisting of
- (A) Glucose and glucose
- (B) Glucose and fructose
- (C) Glucose
and galactose
- (D) Fructose
and galactose
10. Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove
- (A) Color
- (B) Turbidity
- (C) Bacteria
- (D) All (a), (b) and (c)
11. All enzymes are made of
- (A) Fats
- (B) Carbohydrates
- (C) Proteins
- (D) Amino acids
12. Main constituent of dolomite is
- (A) CaCO3
- (B) MgCO3
- (C) K2CO3
- (D) Na2CO3
13. Essential oils are usually obtained using
- (A) Steam
distillation
- (B) Extractive
distillation
- (C) Solvent
extraction
- (D) Leaching
14. Nickel is not used as a catalyst in the __________ reaction.
- (A) Shift
conversion
- (B) Oil
hydrogenation
- (C) Steaming
reforming of naphtha
- (D) Ammonia
cracking/dissociation
15. Which of the following is an organometallic compound?
- (A) Isopropyl
alcohol
- (B) Tetra-ethyl lead
- (C) Zeolite
- (D) Cumene
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