【名词&注释】
不符合(inconformity)、第一节(first quarter)、增压器转子(blower rotor)
[单选题]当轴系的同轴度误差过大时,应采用()方法调整轴系状态。
A. 改变第一道中间轴承的位置
B. 改变最后的中间轴承的位置
C. 改变主机位置
D. 改变所有中间轴承的位置
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学习资料:
[单选题]增压器转子校中时不需检测()。
A. 转子轴向串动量
B. 压气机叶轮的前间隙
C. 压气机叶轮的后间隙
D. 各轴承的轴承间隙
[单选题]经检验,轴系状态良好,仅个别法兰上的δ、φ不符合要求,应采用()方法调整。
A. 调节相关中间轴承位置
B. 调节相关中间轴的位置
C. 调节第一节中间轴的位置
D. 调节相关中间轴和中间轴承的位置
[单选题]A hot air start pipe indicates that there is ().
A. inefficient cooling
B. a leaking air start valve
C. a clogged drain valve
D. a leaking air bottle
[单选题]The diffuser prevents pressure pulses from one cylinder () another during operation.
A. to interfere with
B. interfering with
C. to help scavenging
D. helping scavenging
[单选题]The main factor which determines the output of each cylinder is ()
A. the cylinder weight
B. the cylinder bore
C. the cylinder length
D. the cylinder cover
[单选题]The diesel engine valve subjected to most severe conditions of service is the ().
A. cylinder exhaust valve
B. air starting valve
C. air inlet valve
D. cylinder relief valve
[单选题]Exhaust valve grooving and corrosion is caused by certain components of residual fuel oilThese components are sodium, sulfur, and ().
A. vanadium
B. carbon
C. copper
D. ash
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