Domestic
Blastfurnace
Foundary
None of these
✅ The correct answer is option A.
Chemical Engineering MCQs
Main use of hard coke produced by high temperature carbonisation is in the
Iron blast furnace
Cupola in foundaries
Sinter making
Domestic ovens
✅ The correct answer is option A.
Which of the following is a measure of the agglutinating (i.e., binding) property of coal?
Thickness of plastic layer
Caking index
Swelling index
Gray-king index
✅ The correct answer is option B.
Which of the following constituents of coal is the most important in the production of coke?
Moisture
Ash
Volatiles
Carbon
✅ The correct answer is option D.
A travelling grate stoker is meant for the efficient burning of __________ coal.
Caking
Pulverised
Non-caking
High ash
✅ The correct answer is option C.
Fossil fuels mean
Solid fuels
Liquid fuels
Those fuels which are found in the crust of earth
Premature fuels with low calorific value
✅ The correct answer is option C.
Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces
Higher amount of methane
Lower amount of hydrogen
Both A & B
Higher amount of both methane and hydrogen
✅ The correct answer is option C.
Overfire burning in a furnace is a phenomenon characterised by the
Supply of excess fuel
Supply of excess air
Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air
None of these
✅ The correct answer is option C.
__________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold.
High thermal conductivity
Low porosity
Non-wetting characteristics
High density
✅ The correct answer is option C.
Chromite refractories are used in
bottom of soaking pits.
between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other.
both (a) & (b)
neither (a) and (b)
✅ The correct answer is option C.