The correct sequence of the decreasing order of brake thermal efficiency of the three given basic types of engines is
A. four stroke C.I. engine, four stroke S.I. engine, two stroke S.I. engine
B. four stroke S.I. engine, four stroke C.I. engine, two stroke S.I. engine
C. four stroke C.I. engine, two stroke S.I. engine, four stroke S.I. engine
D. two stroke S.I. engine, four stroke S.I. engine, four stroke C.I. engine
Answer:A
The correct sequence of the decreasing order of brake thermal efficiency of the three given basic types of engines is
A. four stroke C.I. engine, four stroke S.I. engine, two stroke S.I. engine B. four stroke S.I. engine, four stroke C.I. engine, two stroke S.I. engine C. four stroke C.I. engine, two stroke S.I. engine, four stroke S.I. engine D. two stroke S.I. engine, four stroke S.I. engine, four stroke C.I. engine
Explanation: The brake thermal efficiency of the three given basic types of engines decreases in the order four stroke C.I. engine, four stroke S.I. engine, two stroke S.I. engine.