Multiple Choice Question (MCQ)
Question: What is the minimum cross sectional area of the ducts used with bus AC?
A.
400 cm<sup>2</sup>
B.
500 cm<sup>2</sup>
C.
600 cm<sup>2</sup>
D.
700 cm<sup>2</sup>
Correct Answer: 600 cm<sup>2</sup>