Thermodynamics - Engineering

Q1:

Coke is produced

A when coal is first dried and then crushed to a fine powder by pulverising machine

B from the finely ground coal by moulding under pressure with or without a binding material

C when coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel

D by heating wood with a limited supply of air to a temperature not less than 280°C

ANS:C - when coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel

Explanation: No answer description is available.