Decreases
Increases
Remains unaltered
May increase or decrease (depends on the method of storage)
✅ The correct answer is option A.
Engineering
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2772. Which of the following coal gasification processes will produce gas having maximum methane content?
Winkler process
Lurgi process
Kopper-Totzek process
All of the above
✅ The correct answer is option B.
2773. Which of the following has the highest calorific value?
Lignite
Sub-bituminous coal
Anthracite
Peat
✅ The correct answer is option C.
2774. Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with
methyl alcohol
ethyl alcohol
methane
ethane
✅ The correct answer is option A.
2775. Which of the following processes consumes hydrogen ?
Fluid catalytic cracking
Visbreaking
Propane deasphalting
None of these
✅ The correct answer is option A.
2776. Flash point of atmospheric distillation residue is determined by __________ apparates.
Pensky-Martens (closed cup type).
Abel.
Cleveland (open cup type)
none of these.
✅ The correct answer is option C.
2777. Which one is used to determine the colour of petroleum products ?
Colour comparator
Saybolt chromometer
Cleveland apparatus
None of these
✅ The correct answer is option A.
2778. Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene ?
Reforming
Pyrolysis
Alkylation
Hydrocracking
✅ The correct answer is option A.
2779. Fuel for a nuclear reactor (thermal) is
Uranium
Plutonium
Radium
None of these
✅ The correct answer is option A.
2780. Low temperature oxidation of coal during storage does not decrease its
Oxygen content
Caking power
Calorific value
None of these
✅ The correct answer is option D.