Home

A watt's governor can work satisfactorily at speeds from

A. 60 to 80 r.p.m.

B. 80 to 100 r.p.m.

C. 100 to 200 r.p.m.

D. 200 to 300 r.p.m.

Please do not use chat terms. Example: avoid using "grt" instead of "great".