# Comparison of arithmetic mean temperature difference & LMTD - Heat Transfer

**Q. How can the arithmetic mean temperature difference and LMTD of a same heat exchanger be compared?***- Published on 12 Aug 15***a.** the arithmetic mean temperature difference is less than LMTD of a same heat exchanger

**b.** the arithmetic mean temperature difference is more than LMTD of a same heat exchanger

**c.** the arithmetic mean temperature difference and LMTD of a same heat exchanger are equal

**d.** none of the above

**ANSWER: the arithmetic mean temperature difference is more than LMTD of a same heat exchanger**