Engines that operate with rotors instead of pistons or cylinders are seldom used in modern automobiles because

A. they don't produce enough power.

B. they produce dangerous emissions and aren't fuel efficient.

C. they can be highly explosive.

D. the batteries are heavy and expensive.

Question

26 December, 15:58

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Jayvon Dudley · Answer 1

B. They produce dangerous emissions and aren't fuel efficient

Engines that operate with rotors instead of pistons or cylinders are seldom used in modern automobiles becauseA. they don't produce enough power.B. they produce dangerous emissions and aren't fuel efficient.C. they can be highly explosive.D. the batteries are heavy and expensive.