Question

What are the ventilating parts in the ventilating circuits?

(a) sharp or projecting inlet edges

(b) inlet corners

(c) variations in cross-sections of air paths

(d) sharp or projecting inlet edges, inlet corners, variations in cross-sections of air paths

The question was posed to me in an online interview.

Question is from Design of Fan topic in chapter Aspects of Design of Mechanical Parts of Design of Electrical Machines

Answer 1

The correct answer is (d) sharp or projecting inlet edges, inlet corners, variations in cross-sections of air paths

To explain: There are various ventilation parts provided in the ventilation circuits. They are sharp or projecting inlet edges, inlet corners, variations in cross-sections of air paths.