正确答案: B
Ⅰ+Ⅲ+Ⅴ
题目:柴油机气缸盖的结构特点是()。Ⅰ.结构复杂;Ⅱ.阀件多;Ⅲ.孔道较多;Ⅳ.受热不均;Ⅴ.壁厚不均。
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学习资料的答案和解析:
[单选题]柴油机镀铬气缸套正常磨损率应在()mm/kh范围内。
0.01~0.03
[单选题]液压拉伸器是利用油压使螺栓()后轻易地上紧或松脱螺栓。
产生弹性变形
[单选题]某些新型大型低速柴油机的气缸盖上,设有用来拆卸缸盖螺帽的液压装置(液压环)和配备了专用环形六角扳手,该扳手的作用是()。
液压装置失效时,用来松开缸盖螺帽
[单选题]当船轴上的裂纹深度不大于轴径的5%,长度不大于轴径的10%时,可采用()修理。
C.焊补
[单选题]舵杆纵向裂纹应采用()修理。
焊补
[单选题]After passing through the turbine the exhaust gas is conducted out into the().
open air
[单选题]Charging-air pressure increases if there is incorrect combustion and drop in the () of the diesel engine.
mechanical efficiency
[单选题]If the needle valve in a fuel injection nozzle sticks open ().
time of injection will change
[单选题]Which of the following would cause a diesel to have black smoke?()
leaky injector