A certain engine converts 20% of available heat energy into work. Then its efficiency will be? 20% 80% 50% None of these Right Answer: 20% Share : December 16, 2017 Asghar Khan Physics Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -When the ohmeter measures the infinite resistance, its pointer lies at?For what physical quantity is the pascal a unit?The slope of frequency of incident light and stopping potential for a given surface will be?