网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
The exhaust boilers are used to recover some of （） carried in the exhaust gas from the main engine.
A
water
B
oil
C
heat
D
steam
参考答案
参考解析
解析：
暂无解析
更多 “单选题The exhaust boilers are used to recover some of （） carried in the exhaust gas from the main engine.A waterB oilC heatD steam” 相关考题
考题
I used to _____TV on weekends, but now I start to do some sports with my friends.A：watchedB：watchC：watchingD：be watched
考题
If some of the cylinders are not firing, the ones affected may be determined by watchingA.the exhaust temperatureB.the exhaust pressureC.the governorD.the fuel flow meter
考题
The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.A.large conical springsB.compressed air pressureC.hydraulic pressureD.exhaust gas pressure
考题
In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces_______ .A.all of the oil used by the engine through a filterB.some of the oil used by the engine through a filterC.some of the oil used by the engine through a centrifugeD.all of the oil used by the engine through a centrifuge
考题
A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler ______.A.corrosion at low engine loadsB.erosion at high engine loadsC.overload at high engine loadsD.scaling at all exhaust temperatures
考题
Which statement is TRUE concerning inert gas systems on tankers ________．A.Flue gases from the ship's boilers are used in some systemsB.The gas is heliumC.Using the system accelerates the rusting of the tanksD.All of the above
考题
All portable fire extinguishers must be capable of being ______.A.carried by hand to a fireB.carried or rolled to a fireC.recharged in the fieldD.used on class “B” fire
考题
As a child I used to wash my parents′car to earn some__money.A.paper
B.easy
C.private
D.pocket
考题
The data file belonging to theSYSTEMtablespaceis corrupted and no backup of the file is available. How do you recover the data file？（）A、The data file cannot be recovered.B、The date file can be restored from theSYSTEMauto backup.C、Take thetablespaceoffline，drop，kand re-create it.D、Recovery Manager （RMAN） is used to recover the data file.E、The ALTER DATABSE CREATE DATAFILE..commandis used to recover the data file.
考题
If a backup is expired， which of the following is true？（） A、 It can never be used for a restore/recover operation.B、 Oracle will remove the backup set pieces from the flash recovery area.C、 The backup has been used at least once to restore and recover the database.D、 The backup is no longer valid because of a resetlogs operation.E、 The physical backup set pieces are missing from the media.
考题
Which command is used to begin a tablespace point-in-time recovery？（） A、 Restore tablespaceB、 Recover tablespaceC、 Tablespace recoverD、 Recover to timeE、 recover datafile
考题
单选题Which of the following is the best version of the ideas conveyed in sentences 1 and 2 (reproduced below)?My parents used to put olives on everything. Salads, pizza, pasta, chicken, even some desserts.A
(As it is now)B
My parents used to put olives on every- thing; salads, pizza, pasta, chicken, even some desserts.C
My parents used to put olives on every- thing, salads, pizza, pasta, chicken, even some desserts.D
My parents used to put olives on every- thing: salads, pizza, pasta, chicken, and even some desserts.E
My parents used to put olives on every-thing; including salads, pizza, pasta, chicken, even some desserts.
考题
单选题（）is a caing used for exhaust pipe from the engines.A
The funnelB
The messroomC
The galleyD
The satellite antenna
考题
单选题Diesel engine exhaust gas temperatures can be used to determine individual cylinder （）.A
performanceB
horsepower outputC
fuel consumptionD
scavenge effect
考题
单选题The diesel engine exhaust gas bypass, as fitted with some waste heat boilers, is installed to （）A
prevent engine back pressure at heavy loadsB
increase total engine efficiency at low loadsC
prevent boiler corrosion at low engine loadsD
improve engine fuel consumption at any load
考题
多选题Media recovery can sometimes be stopped by the inability to read past a certain point in the redo stream. This is often referred to as “stuck recovery”. Before Oracle9i， the Database Administrator had few options to deal with stuck recovery. If the corrupt redo could not be recovered from some other source， then all transactions that committed after the corrupt point in the redo steam would be lost. Oracle9i changes that with the Trial Recovery feature. Trial Recover is used to test the application of the redo logs to the database. What are three other characteristics of Trial Recovery（）ASpeeds up subsequent media recover actions.BWrites any uncorrupted block to disk during the test recovery.CCan be invoked by adding the TEST option to any RECOVER command.DAllows the Administrator to determine how many blocks are affected by corruption.EMarks blocks as corrupt in memory， allowing the test recover to proceed to completion.
考题
单选题Diesel engine exhaust temperatures may be used to indicate （）.A
leaking exhaust valvesB
an overloaded cylinderC
a clogged injector nozzleD
all of the above
考题
单选题The purpose of designing some waste heat boilers with sinuous fire tubes, is to（）A
increase exhaust gas velocity through the boilerB
reduce accumulations of carbon deposits on the heat transfer surfacesC
eliminate exhaust gas pulsations and noiseD
increase the rate of heat transfer to the waterside
考题
单选题Generating tubes in waste heat boilers are finned to （）.A
reduce gas flow turbulenceB
prevent exhaust gas corrosionC
increase the rate of combustionD
increase the rate of heat transfer
考题
单选题—Excuse me. Could you tell me _____?—Yes. There is a video shop next to the tall building.A
where can I buy some CDsB
where I can buy some CDsC
when can I buy some CDsD
when I can buy some CDs
考题
单选题In motor ship, （） is often used to recover some of the heat carried in the exhaust gases from the main engine.A
an diesel oil heaterB
a waste heat boilerC
a fresh water generatorD
all the above
考题
单选题The data file belonging to the SYSTEM tablespace is corrupted and no backup of the file is available. How do you recover the data file？（）A
The data file cannot be recovered.B
The date file can be restored from the SYSTEM auto backup.C
Take thetablespaceoffline，drop，kand re-create it.D
Recovery Manager （RMAN） is used to recover the data file.E
The ALTER DATABSE CREATE DATAFILE..commandis used to recover the data file.
考题
单选题Fins are installed on the generating tube surfaces in waste heat boilers to （）.A
prevent soot fires in the exhaust systemB
prevent exhaust gas erosion of the tubesC
increase the velocity of exhaust gas flowD
increase the rate of heat transfer
考题
单选题The most common instrument used to measure diesel engine exhaust pressure is the （）A
pyrometerB
bourdon gaugeC
pneumercatorD
manometer
考题
单选题Which of the following operating procedures should be carried out immediately after any diesel engine is started?（）A
Take all exhaust temperature readingB
Check the sump oil levelC
Verify proper lube oil pressureD
All of the above
考题
单选题Which command is used to begin a tablespace point-in-time recovery？（）A
Restore tablespaceB
Recover tablespaceC
Tablespace recoverD
Recover to timeE
recover datafile
考题
单选题I_______with all the windows closed, but now I'd like some fresh air.A
am used to sleepB
am use to sleepingC
used.to sleepingD
used to sleep
热门标签
最新试卷
