A、carbon deposits on the flame scanner
B、high fuel oil temperature
C、low fuel oil viscosity
D、high steam pressure
更多“Ignition failure in an automatically controlled auxiliary boiler could be caused by（）”相关的问题
A、An increase in compression ratio will increase the ignition lag B、An increase in compression ratio will decrease the ignition lag C、A decrease in compression ratio will decrease the ignition lag D、A decrease in ignition lag will increase the compression ratio
A、It produces a warning for new failures before advising for CRITICAL and HIGH failures. B、It ignores new failures and considers the failures listed in the last LIST FAILURE command only. C、It produces an error with recommendation to run the LIST FAILURE command before the ADVISE FAILURE command. D、It produces advice only for new failures and the failures listed in the last LIST FAILURE command are ignored.
A、A.ignition failure B、B.oxygen corrosion of the fuel lines C、C.the pistons to seize D、D.blue smoke
A、A.a burned out solenoid in the oil supply valve B、B.high temperature excess air C、C.incorrectly setting the hot-well dump valve D、D.an incorrectly positioned burner snubber realy
A、The CHANGE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository(ADR) B、The VALIDATE DATABASE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) C、The ADVISE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE D、The RECOVER command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE command was executed
A、Another repair session is running concurrently. B、The failure ID has not been mentioned in the command for data file 5. C、There are new failures recorded in the Automatic Diagnostic Repository (ADR). D、The ADVISE FAILURE command has not been issued before the REPAIR FAILURE command.
A、Transactions and queries accessing database objects contained in any tablespace stored in DGROUP1 will fall. B、Mirroring of allocation units will be done to ASM disks in the CONTROLLER2 failure group until the CONTROLLER1 for failure group is brought back online. C、The data in the CONTROLLER1 failure group is copied to the controller2 failure group and rebalancing is initiated. D、ASM does not mirror any data until the controller failure group is brought back online, and newly allocated primary allocation units (AU) are stored in the controller2 failure group, without mirroring. E、Transactions accessing database objects contained in any tablespace stored in DGROUP1 will fail but queries will succeed.
A、excessive purging before lighting off B、insufficient trail for ignition period C、a faulty transformer in the ignition circuit D、insufficient purging before lighting off
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