Ash
Inherent mineral matter
Free impurities
Volatile matter
✅ The correct answer is option B.
Chemical Engineering MCQs
Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?
Dehydrogenation of naphthene
Dehydrogenation of lower paraffins
Dehydrocyclisation of higher paraffins
Isomerisation of paraffins
✅ The correct answer is option B.
With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.
Hydrogen
Methane
Unsaturated hydrocarbons
All of the above
✅ The correct answer is option A.
Fischer-Tropsch method aims at the
Gasification of coal
Synthesis of gasoline (from water gas)
Hydrogenation of coal to produce gasoline
None of these
✅ The correct answer is option B.
The hottest part of the flame lies in its____zone.
Non-luminous
Luminous
Yellow
Unburnt gases
✅ The correct answer is option A.
Platforming is a __________ process.
moving bed
fluidised bed
non-regenerative & fixed bed
regenerative
✅ The correct answer is option C.
An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating.
5
15
40
60
✅ The correct answer is option C.
Natural gasoline is produced
from oil wells
in oil refineries
by natural gas stripping
none of these
✅ The correct answer is option C.
Boiling range of motor gasoline is an indication of the
case of starting
rate of acceleration
vapour locking tendency
all (a), (b) and (c)
✅ The correct answer is option B.
Which of the following has the highest viscosity of all (at a given temperature) ?
Naphtha
Fuel oil
Light diesel oil
Petrol
✅ The correct answer is option B.