Related Questions

Coke made in narrower by-product coke ovens (as compared to wider ovens) is
A Less reactive
B Stronger
C Smaller in size
D All of the above
Narrow coke ovens as compared to wider coke ovens
A Produce smaller coke
B Produce stronger coke
C Require less time of carbonisation
D All of the above
By-products are __________ recovered in 'Beehive ovens'.
A Fully
B Partially
C Not at all
D Negligibly
Coking time in beehive coke oven is about
A 12 hours
B 2-3 days
C One week
D Two weeks
Beehive coke oven
A Facilitates by-products recovery
B Takes 2-3 days for coking of coal but requires no external fuel for heating
C Gives larger yield of coke (around 85%) as compared to by-product ovens
D Produces coke with very poor strength
A red house is built from red bricks . A blue house is built from blue bricks. A white house is built from white bricks. Then what is a greenhouse made from ?
A green bricks
B wood
C glass
D steel
The solid brick shown is made of small square shaped bricks of side 1. when the large brick is disassembled into its component small bricks. the total surface area of all the small bricks is how much greater than the surface area of the large brick?
A 32
B 40
C 60
D 72
Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr.
A 2.5
B 0.5
C 10
D 20
Coking time in narrow by-product coke ovens is around __________ hours.
A 18
B 48
C 8
D 80
Undercharging of coal in the by-product coke ovens results in
A Decrease in the c.v. of coke oven gas
B Increase in its throughput
C Increase in the c.v. of coke oven gas
D No change in the c.v. of coke oven gas

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