单项选择题
What is the effect of heated intake air on a diesel engine? （）
A.Increases efficiency B.Increases engine horsepower C.Increases engine life D.Reduces engine horsepower
单项选择题 What is one effect of running a diesel engine at too cool a temperature? （）
单项选择题 What is an advantage of diesel over steam turbine propulsion? （）
单项选择题 What is an advantage of a steam turbine over a diesel for the main propulsion?（）
