Sludge formation in a diesel engine lube oil system is caused by（）..

第1题

[单选题] A refrigeration system contaminated with moisture can be affected by （）.

A、acid formation B、sludge formation C、ice in the expansion valve D、All of the above

第2题

[] When does auxiliary burner of incinerator put into operation? （） Ⅰ. start incinerator when it is cold Ⅱ. the sludge for dealing with is little Ⅲ. the sludge for dealing with is large Ⅳ. the water and impurity in sludge are too much Ⅴ. the temperature in incinerator is low Ⅵ. dealing with little solid rubbish When does auxiliary burner of incinerator put into operation? （） Ⅰ. start incinerator when it is cold Ⅱ. the sludge for dealing with is little Ⅲ. the sludge for dealing with is large Ⅳ. the water and impurity in sludge are too much Ⅴ. the temperature in incinerator is low Ⅵ. dealing with little solid rubbish

A、A.Ⅰ+Ⅱ+Ⅲ+Ⅴ B、B.Ⅰ+Ⅱ+Ⅲ+Ⅳ C、C.Ⅰ+Ⅳ+Ⅴ+Ⅵ D、D.Ⅰ+Ⅱ+Ⅲ+Ⅵ

点击查看答案

第3题

[单选题] When does auxiliary burner of incinerator put into operation? （） Ⅰ.tart incinerator when it is cold Ⅱ.he sludge for dealing with is little Ⅲ.he sludge for dealing with is large Ⅳ.he water and impurity in sludge are too much Ⅴ.he temperature in incinerator is low Ⅵ.ealing with little solid rubbish

A、Ⅰ+Ⅱ+Ⅲ+Ⅴ B、Ⅰ+Ⅱ+Ⅲ+Ⅳ C、Ⅰ+Ⅳ+Ⅴ+Ⅵ D、Ⅰ+Ⅱ+Ⅲ+Ⅵ

点击查看答案

第4题

[多选题] You executed the following commands to find the location of the alert log file： Where is the alert log file stored（）

A、in the BACKGROUND_DUMP_DEST location； in text format B、in the BACKGROUND_DUMP_DEST location； in XML format C、in the BACKGROUND_DUMP_DEST location； in both text and XML format D、in the DIAGNOSTIC_DEST/diag/rdbms/orcl/orcl/alert directory； in text format E、in the DIAGNOSTIC_DEST/diag/rdbms/orcl/orcl/alert directory； in XML format F、in the DIAGNOSTIC_DEST/diag/rdbms/orcl/orcl/alert directory； in both text and XML format

点击查看答案

第5题

[单选题] The sludge tank installed in the diesel engine room is used to collect（） Ⅰ.sludge from the fuel oil settling tanks ad centrifuge Ⅱ.water that has been collected in the settling tank

A、Ⅰonly B、Ⅱ only C、bothⅠand Ⅱ D、neitherⅠor Ⅱ

点击查看答案

第6题

[单选题] （）can cause oil flow from sludge outlet of self cleaning separator.

A、Too much sludge accumulated in separator bowl B、Diameter of gravity disc too large C、High level tank lack of water D、Oil input too rapidly

点击查看答案

第7题

[] During OSPF adjacency formation, in which state is a router in when it is negotiating to be in charge of the database synchronization process?（） During OSPF adjacency formation, in which state is a router in when it is negotiating to be in charge of the database synchronization process?（）

A、A.A B、B.B C、C.C D、D.D

点击查看答案

第8题

[单选题] The water in an auxiliary boiler should be tested daily for （）.

A、dissolved oxygen B、chlorides C、sludge D、dissolved nitrogen

点击查看答案

第9题

[单选题] Concerning the management of sewage treatment plant using activated sludge, which of the following is correct?（）

A、the plant should be prohibited to supplying air B、the plant should work at intervals C、the plant should be added disinfector in time D、we should check strength of activated sludge, ivory-white color is best

点击查看答案

Sludge formation in a diesel engine lube oil system is caused by（）

请使用微信扫码支付