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 two most common gases used in pneumatic system are （）
A
compressed air and nitrogen
B
helium and nitrogen
C
oxygen and hydrogen
D
oxygen and acetylene
参考答案
参考解析
解析：
暂无解析
更多 “单选题The two most common gases used in pneumatic system are （）A compressed air and nitrogenB helium and nitrogenC oxygen and hydrogenD oxygen and acetylene” 相关考题
考题
Current ratio and quick ratio are two of the most common ratios used to analyze a firm’s short－term or liquidity position.()
此题为判断题(对，错)。
考题
The most widely used LAN system is ______ which adopts a form. of access known as CSMA-CD．A．EthemetB．ATMC．FDDID．Wireless
考题
______ the most versatile of the common metals, lead was widely valued and used in ancient times.A. It isB. ThereforeC. AmongD. Because
考题
Radio, telephone and press ____ of conveying news and information.
A.are the most three common meansB.are the most common three meansC.are the three most common meansD.are three the most common means
考题
Which three statements are true about the working of system privileges in a multitenant control database(CDB) that has pluggable databases (PDBs)?()
A. System privileges apply only to the PDB in which they are used.B. Local users cannot use local system privileges on the schema of a common user.C. The granter of system privileges must possess the set container privilege.D. Common users connected to a PDB can exercise privileges across other PDBs.E. System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users.
考题
Which two commands are used during the password recovery process?()
A. clear system loginB. boot -sC. recoveryD. delete system root-authentication
考题
The display screen is the most common (72) device used to show you what the computer is doing．A．inputB．printingC．outputD．electronic
考题
The use of sinking and dispersing chemical agents for removal of surface oil is ______.A.the most common method used in the United StatesB.too expensive for common useC.generally safe to sea lifeD.authorized only with prior approval of the Federal On-Scene Coordinator
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
NAS， SAN， and Tape library are MOST commonly used for which of the following？（）A、System paging fileB、Virtual memoryC、GPU processingD、Backup and file storage
考题
Which two commands are used during the password recovery process?（）A、clear system loginB、boot -sC、recoveryD、delete system root-authentication
考题
The most common kinds of （）used on board ship are as follows: primer coat, undercoat, topcoat, heat-resistant paint, varnish and anti-fouling paint.A、cement washB、bitumenC、paintD、varnish
考题
A technician is called for a computer that is not connecting to the network. Which of the following would be the MOST common tool used to identify the issue? （）A、Cable testerB、MultimeterC、Loop back plugsD、Crossover cable
考题
Which of the following commands would MOST likely be used to see where a loss of connectivity between two devices on a network is located?（）A、tracertB、netstatC、nslookupD、ping
考题
Which three statements are true about the working of system privileges in a multitenant control database(CDB) that has pluggable databases (PDBs)?（）A、System privileges apply only to the PDB in which they are used.B、Local users cannot use local system privileges on the schema of a common user.C、The granter of system privileges must possess the set container privilege.D、Common users connected to a PDB can exercise privileges across other PDBs.E、System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users.
考题
You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003. Your network includes domain controllers, file and print servers, and application servers. The application servers run a variety of programs, including Microsoft SQL Server 2000 and Microsoft Exchange Server 2003. Your staff are responsible for monitoring current system performance on all servers. You need to enable your staff to use System Monitor to gather performance data for each unique server type. The data will be used for trend analysis and forecasting. Which two actions should you perform? （）(Each correct answer presents part of the solution. Choose two)A、For each server, add the most common performance counters and save them as an HTML file.B、For each server, add the most common performance counters and save them as a counter report file.C、Create trace logs based on the file and schedule and trace logs to gather data.D、Create alerts on the file and schedule the alerts to gather data.E、Create counter logs based on the file and schedule the counter logs to gather data.
考题
单选题Radio, television and press are ______ of conveying news and information.A
the most three common means B
the most common three meansC
the three most common means D
three the most common means
考题
单选题Restrictions occurring in the small orifices of pneumatic control system components can be used by （）A
moisture in the compressed air supplyB
excessive dryness in the compressed air supplyC
pressure surging in the compressed air receiverD
insufficient lubrication of the system components
考题
单选题The two most common gases used in pneumatic system are （）A
compressed air and nitrogenB
helium and nitrogenC
oxygen and hydrogenD
oxygen and acetylene
考题
单选题The exhaust system for a turbocharged two-stroke/cycle diesel engine functions to（）A
discharge exhaust gases and smokeB
furnish energy to the turbochargerC
reduce engine room noiseD
all of the above
考题
单选题The use of sinking and dispersing agents for the removal of surface oil is （）.A
the most common method used in the United StatesB
too expensive for common useC
generally safe to sea lifeD
generally harmful to sea life
考题
单选题Compressed air is used on board ship （）.A
for starting diesel enginesB
in pneumatic control systemC
in pneumatic toolsD
All the above are true
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A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）A
purge lube oil from the liquid refrigerantB
recover water purged from the systemC
separate foul gases from the receiverD
purge non-condensable gases without losing refrigerant
考题
单选题（）uses one or two high pressure pumps for all the cylinders with one more standby, while（）have a separate high-pressure pump for each cylinder.A
A common rail engine；conventional enginesB
A conventional engine；common rail enginesC
A marine diesel engine；most other enginesD
A two-stroke engine；four-stroke engines
考题
单选题The most common diesel engine fuel system problems are caused by （）.A
incorrect adjustmentsB
dirty fuelC
broken fuel linesD
excessive vibration
考题
单选题If an air compressor is used to supply air primarily to the combustion control system and other pneumatic controllers, the entire system is known as the （）.A
control air systemB
forced draft air systemC
supply air systemD
ships service air system
考题
单选题The use of sinking and dispersing chemical agents for removal of surface oil is（）.A
the most common method used in the United StatesB
too expensive for common useC
generally safe to sea lifeD
authorized only with prior approval of the Federal On-Scene Coordinator
热门标签
最新试卷
