[試題] 96下 蘇金佳 汽機車引擎 期中考
課程名稱︰汽機車引擎
課程性質︰選修
課程教師︰蘇金佳
開課學院：工學院
開課系所︰機械系
考試日期（年月日）︰2008.04.15
考試時限（分鐘）：100分鐘
是否需發放獎勵金：是！謝謝
（如未明確表示，則不予發放）
試題 : close book
1.Briefly explain the following terms:(a) volumetric efficiency,(b)adiabatic
flame temperature, (c)compression ratio, and (d)equivalence ratio
(5%@, 20%total)
2.Discuss the intake process of the twp-stroke engine and explain the
disavantage of the process. (10%)
3.Discuss the process of the Otto cycle.(10%)
4.Explain why for the same compression ratio the thermal efficiency of the
Otto cycle is higher or lower than that of the Diesel cycle. (10%)
5.Explain the effect of finite heat release on the efficiency of a gasoline
engine.(10%)
6.Discuss the difference between imep and bemp. (10%)
7.Write down the chemical equation of the complete combusion of nitromethane
(CH3NO2) in air under stoichiometric conditions. (10%)
8.Explain the principle of the operation of the engine dynamometer. (10%)
9.Explain the variation of the curves shown down in the following figure.(10%)
(圖在課本 p.98 Figure4-14)
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