A、A.air or water in the furnace
B、B.combustion pulses
C、C.fuel oil pump failure
D、D.flame failure
更多“Excessive vibration of an automatically fired auxiliary boiler can be caused by （）”相关的问题
A、improper adjustments B、contaminated fuel C、kinked fuel lines D、excessive engine vibration
A、improper adjustment B、contaminated fuel C、kinked fuel lines D、excessive engine vibration
A、A.unusual vibration B、B.excessive worn parts C、C.abnormal pressure D、D.any of the above
A、Improper lubrication B、Air in the fuel system C、Coated fuel lines D、Excessive vibration
A、A.electrical overload B、B.surging at governed RPM C、C.loose engine mounting bolts D、D.coolant leaking into the cylinder
A、Excessive pitching B、Excessive yawing C、Excessive rolling D、No change should be evident
客服
TOP
查看正确答案
