... ratio 'r' and the efficiency 'η' are related by (a) rDiesel > rOtto (b) rDiesel < rOtto (c) ηOtto > ηDiesel (d) ηOtto < ηDiesel [GATE- 200 0] Previous Years IES Questions Carnot cycle Q1 Which gas ... of IC engines is (a) stroke CI engine, stroke SI engine, stroke SI engine [IES- 1995] (b) stroke SI engine, stroke CI engine, stroke SI engine (c) stroke CI engine, stroke SI engine, stroke SI engine ... idling and low speed operation, the carburretor supplies a mixture which can be termed as [GATE- 200 4] (a) Lean (b) slightly leaner than stoichiometric (c) stoichiometric (d) rich Previous Years IES...