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 145hard
In producer gas making furnace, steam is added along with air to mainly control the
Question 146easy
An example of shaft furnace is the
Question 147hard
The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent.
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Question 148hard
Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.
Question 149hard
Maximum thermal efficiency of boiler may be about __________ percent.
Question 150hard
Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent.
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Question 151hard
Thermal efficiency of an open hearth furnace may be about __________ percent.
Question 152medium
Furnace pressure is normally controlled by regulating the
Question 153medium
Which of the following is a directly fired intermittant furnace?