Fuels And Combustion MCQ Questions & Answers | Chemical Engineering

A. Produces more slag when used in the blast furnace

B. Has poor strength and abrasion resistance

C. Is desirable in producer gas manufacture

D. None of these

A. Reduces the coking time

B. Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls

C. Increases the loss of fine coal dust from the ovens when charging

D. None of these

A. Sewage gas

B. LPG

C. Producer gas

D. Natural gas

A. Produce weak coke

B. Produce strong coke

C. May damage the coke oven walls during carbonisation

D. Both B and C

A. CO

B. CO₂

C. H₂O

D. Both B & C

A. Increase

B. Decrease

C. Increase or decrease depending on the fuel type

D. Not change

A. Higher amount of methane

B. Lower amount of hydrogen

C. Both A & B

D. Higher amount of both methane and hydrogen

A. Pitch

B. Fuel oil

C. Blast furnace gas

D. Bituminous coal

A. Sulphur & phosphorous content

B. Porosity

C. Fusion point of its ash

D. Hardness & strength

A. Lignite

B. Bituminous

C. Semi-anthracite

D. Anthracite