1000+ Chemical Engineering Fuels and Combustion Quiz Questions - 3

Question: 11

Largest constituent of coke oven glass is

(A) CO2

(B) CH₄

(C) H₂

(D) N₂

Question: 12

Most of the coking coals are

(A) lignite

(B) anthracite

(C) bituminous

(D) none of these

Question: 13

Preheating of combustion air is done to

(A) reduce its requirement for effecting the complete combustion

(B) complete the combustion of fuel

(C) increase the calorific value of the fuel

(D) increase the adiabatic flame temperature

Question: 14

Which of the following coke has the least percentage of ash?

(A) metallurgical coke

(B) petroleum coke

(C) beehive coke

(D) foundry coke

Question: 15

Which of the following is not continuous waste heat recovery equipment from the flue gases going out of furnace?

(A) waste heat boiler

(B) ceramic recuperator

(C) regenerator

(D) economiser