# Thermal efficiency of furnaces can be improved by _____ ? with Answer - Chemical Engineering Mcqs | TestPrep

> Solved MCQ: Thermal efficiency of furnaces can be improved by _____ ? Correct Answer: D. All A., B. and C.. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Thermal efficiency of furnaces can be improved by _____ ?

Direct Answer & Quick Reference

The correct option is **D. All A., B. and C.**.

A. Waste heat recovery from flue gas

B. Minimising heat losses from furnace walls

C. Maintaining proper draught

D. All A., B. and C. **(Correct Answer)**

✨ Explain with AI

Verified Key: D. All A., B. and C.
Solved by 1,650+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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