Q. An example of shaft furnace is the
✅ Correct Answer: (C)
Blast furnace
Furnace Technology MCQs | Page - 16
Dear candidates you will find MCQ questions of Furnace Technology here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent.
✅ Correct Answer: (B)
40
Q. Thermal efficiency of blast furnace stoves used for heating blast (air) may be about _______________ percent.
✅ Correct Answer: (D)
80
Q. Maximum thermal efficiency of boiler may be about __________ percent.
✅ Correct Answer: (D)
90
Q. Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent.
✅ Correct Answer: (B)
25-30
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