配套习题- 热机 -【青果学院】

1/5单选题

难度：

1.

关于热机，错误的说法是（）

A	利用内能来做功的机器叫热机
B	蒸汽机、内燃机、燃气轮机、喷气发动机都叫热机
C	一切热机的工作过程都包括四个冲程
D	热机工作时将内能转化为机械能

正确答案：Qw==

PHA+54Ot5py65piv5oqK5YaF6IO96L2s5YyW5Li65py65qKw6IO955qE5py65Zmo77yM5pyJ5Lqb54Ot5py65piv5Zub5Liq5Yay56iL77yM5Lmf5pyJ5Lik5Liq5Yay56iL5oiW5YWt5Liq5Yay56iL55qE77yM56eN57G75pyJ6JK45rG95py644CB5YaF54eD5py644CB5rG96L2u5py644CB5Za35rCU5Y+R5Yqo5py644CB54Gr566t5Y+R5Yqo5py6562J77yM5omA5Lul562U5qGI5Li6Qy48L3A+

2/5单选题

难度：

2.下列流程图是用来说明单缸四冲程汽油机的一个工作循环及涉及到的主要能量转化情况．关于对图中①②③④的补充正确的是（　　）

A	①做功冲程②内能转化为机械能③压缩冲程④机械能转化为内能
B	①压缩冲程②内能转化为机械能③做功冲程④机械能转化为内能
C	①做功冲程②机械能转化为内能③压缩冲程④内能转化为机械能
D	①压缩冲程②机械能转化为内能③做功冲程④内能转化为机械能

正确答案：RA==

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

3/5单选题

难度：

3.在汽油机工作的四个冲程中，将机械能转化为内能的是（）

A	吸气冲程
B	压缩冲程
C	做功冲程
D	排气冲程

正确答案：Qg==

5YaF54eD5py655qE5LiA5Liq5bel5L2c5b6q546v55Sx5ZC45rCU5Yay56iL44CB5Y6L57yp5Yay56iL44CB5YGa5Yqf5Yay56iL44CB5o6S5rCU5Yay56iL5Zub5Liq5Yay56iL57uE5oiQ77yM5YW25Lit5Y6L57yp5Yay56iL5Lit5py65qKw6IO96L2s5YyW5oiQ5YaF6IO977yM5YGa5Yqf5Yay56iL5Lit5YaF6IO96L2s5YyW5oiQ5py65qKw6IO977yM5omA5Lul562U5qGI5Li6Qi4=

4/5单选题

难度：

4.下列关于单缸四冲程内燃机一个工作循环中四个冲程的顺序排列正确的是（）

A	丙、丁、乙、甲
B	乙、丁、甲、丙
C	乙、甲、丁、丙
D	甲、乙、丙、丁

正确答案：Qg==

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

5/5单选题

难度：

5.有关汽油机和柴油机的说法，不正确的是（）

A	使用的燃料不同
B	柴油机气缸顶部有喷油嘴，而汽油机气缸顶部有火花塞
C	柴油机笨重但功率大
D	做功冲程中汽油机的气缸内燃气的压强和温度比柴油机气缸内燃气的压强和温度高

正确答案：RA==

5rG95rK55py655qE54eD5paZ5piv5rG95rK577yM5p+05rK55py655qE54eD5paZ5piv5p+05rK577yb5rG95rK55py65rCU57y46aG26YOo5pyJ54Gr6Iqx5aGe77yM5p+05rK55py65rCU57y46aG26YOo5pyJ5Za35rK55Zi077yb5p+05rK55py65Li76KaB55So5LqO6YeN5Z6L5py65qKw77yM5Yqf546H5aSn77yb5p+05rK55py65Y6L57yp5Yay56iL5Y6L57yp55qE5piv56m65rCU77yM55Sx5LqO5rKh5pyJ54Gr6Iqx5aGe77yM54K554Gr5pa55byP5piv5Y6L54eD5byP77yM5omA5Lul5p+05rK55py65rCU57y45YaF54eD5rCU55qE5Y6L5by65ZKM5rip5bqm5pu06auY77yM5omA5Lul562U5qGI5Li6RC4=