Furnace Technology MCQs
Practice free Furnace Technology multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 165 questions — no login required.
Question 28easy
Air filtration in a furnace
Question 29hard
In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of
Question 30hard
If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace.
Advertisement
Question 31hard
Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent.
Question 32easy
Hearth furnaces are not used for
Question 33hard
The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent.
Advertisement
Question 34medium
The heating capacity of continuous reheating furnace depends upon the
Question 35medium
Means for giving direction to the circulation of gases in furnaces are
Question 36hard
If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.