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
Engines, which are to be run in parallel have governors specially adapted for the same（）, about 4% to obtain basic load sharing.
A
speed settings
B
speed droops
C
speed drops
D
speed changes
参考答案
参考解析
解析：
暂无解析
更多 “单选题Engines, which are to be run in parallel have governors specially adapted for the same（）, about 4% to obtain basic load sharing.A speed settingsB speed droopsC speed dropsD speed changes” 相关考题
考题
Main engines as well as auxiliary engines operating on heavy fuel should have continuousoon the lubricating oil, either according tothebypass or batch principles
A.filteringB.centrifugingC.depositingD.operating
考题
第一组Older loop scavenged engines may have a single injector mounted centrally in the cylinder head. Because the exhaust valve is in the center of the cylinder head on modern uniflow scavenged engines the fuel valves (2 or 3) are arranged around the periphery of the head. The pressure at which the injector operates can be adjusted by adjusting the loading on the spring. The pressures at which the injectors operate vary depending on the engine, but can be as high as 540 bar. Some injectors have internal cooling passages in them extending into the nozzle through which cooling water is circulated. This is to prevent overheating and burning of the nozzle tip. Injectors on modern engines do not have internal cooling passages. They are cooled by a combination of the intensive bore cooling in the cylinder head being close to the valve pockets and by the fuel which is re-circulated through the injector when the follower is on the base of the cam or when the engine is stopped. As well as cooling the injector, re-circulating the fuel when the engine is stopped keeps the fuel at the correct viscosity for injection by preventing it from cooling down. Fuel injectors must be kept in good condition to maintain optimum efficiency, and to prevent conditions arising which could lead to damage within the cylinder. Injectors should be changed in line with manufacturers recommendations, overhauled and tested. Springs can weaken with repeated operation leading to the injector opening at a lower pressure than designed. The needle valve and seat can wear which together with worn nozzle holes will lead to incorrect atomization and dribbling.Modern uniflow scavenged engines have______.A.a single injector mounted in the center of the cylinder headB.several injectors mounted around the external boundary of the cylinder headC.a single injector mounted at the external boundary of the cylinder headD.several injectors mounted in the center of the cylinder head
考题
Diesel engines driving alternators operating in parallel must maintain a set frequency regardless of load changes. The governor characteristic used to accomplish this is known as _______.A.actuationB.sensitivityC.compensationD.promptness
考题
In () technology, two separate and complete processing units run in parallel on a Single chip.
A.Hyper-threadingB.CachingC.Multi-taskingD.Dual-core
考题
You have an Exchange Server 2010 Mailbox server.You need to identify which users have the largest mailboxes on the server.What should you do？（）A、Run the Get-MailBoxStatistics cmdlet.B、Run the Get-StoreUsageStatistics cmdlet.C、Add the MSExchangeIS Client performance counters to the Performance Monitor.D、Add the MSExchangeIS Mailbox performance counters to the Performance Monitor.
考题
A technician is installing a parallel PCI card. Which of the following is the IEEE standard for parallel?（）A、802.11bB、1284C、1394D、802.11g
考题
Which of the following will occur if a laptop SATA 1 drive is installed on a SATA 2 controller?（）A、The drive will run at the lower SATA 1 speed.B、The drive will not work due to incompatibility.C、The drive will run at the higher SATA 2 speed.D、The drive will have intermittent POST errors.
考题
Which of the following expansion ports can a server boot from？（）A、 AGPB、 USBC、 SerialD、 Parallel
考题
Which data synchronization options between two geographical locations are supported by PowerHA SystemMirror?（）A、Parallel and SerialB、Serial and AsynchronousC、Parallel and SynchronousD、Synchronous and Asynchronous
考题
You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA， a big file tablespace of size 100 TB on tape drive， but you have tapedrives of only 10 GB each. Which method would accomplish the task quickly and efficiently？（） A、 parallel image copy backupB、 backup with MAXPIECESIZE configured for the channelC、 parallel backup with MAXPIECESIZE configured for the channeD、 intrafile parallel backup
考题
You have created a script in the recovery catalog called backup_database. Which of the following commands would successfully execute that script？（） A、 run { open script backup_database； run script backup_database }B、 run { engage script backup_database； }C、 run { run script backup_database； }D、 Run { execute script backup_database； }E、 The name backup_database is an invalid name for an RMAN script. Trying to run it from RMAN would result in an error.
考题
单选题Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of （）A
less even torqueB
higher cylinder head temperaturesC
fewer power strokes per revolutionD
greater weight/size requirements
考题
单选题The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the （）.A
voltage regulatorsB
field rheostatsC
reverse power relaysD
prime mover governors
考题
单选题In stopping distances of vessels，head reach can best be described as the（）.A
difference between the vessel's speed through the water at any instant and the new speed ordered on the telegraphB
distance the vessel has actually run through the water since a change of speed was orderedC
distance the vessel will run between taking action to stop her and being stationary in the waterD
speed at which a vessel should proceed to ensure that she will run a predetermined distance，once her engines have been stopped
考题
单选题You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA， a big file tablespace of size 100 TB on tape drive， but you have tapedrives of only 10 GB each. Which method would accomplish the task quickly and efficiently？（）A
parallel image copy backupB
backup with MAXPIECESIZE configured for the channelC
parallel backup with MAXPIECESIZE configured for the channeD
intrafile parallel backup
考题
单选题（）, so they are widely used on board ship nowadays.A
Diesel engines have more advantages in comparison with gasoline enginesB
Diesel engines have more advantages in comparison to gasoline enginesC
Gasoline engines have more advantages in comparison with diesel enginesD
Gasoline engines have more advantages in comparison to diesel engines
考题
单选题Diesel engines driving alternators operating in parallel must maintain set frequency regardless of load changesThe governor characteristic used to accomplish this is known as （）A
actuationB
sensitivityC
compensationD
thrust shaft
考题
单选题In （） technology, two separate and complete processing units run in parallel on a Single chip.A
Hyper-threadingB
CachingC
Multi-taskingD
Dual-core
考题
单选题Which of the following devices is common to both mechanical and hydraulic governors?（）A
Direct linkage between the ball-head and fuel rackB
A servomotorC
A compensating deviceD
Flyweights
考题
单选题Main engines as well as auxiliary engines operating on heavy fuel should have continuous on the lubricating oil, either according to the bypass or batch principles（）A
filteringB
centrifugingC
depositingD
operating
考题
单选题Exhaust pipes for separate diesel engines can be combined only when （）A
space limitations prevent separately run pipesB
the engines are small auxiliary unitsC
they are arranged to prevent gas backflow to each engineD
a waste heat boiler is installed
考题
单选题The booster pump, which supplies diesel oil to（） , should have a possibility of being powered by compressed air or by emergency power.A
the main enginesB
the auxiliary enginesC
the emergency generator engineD
the auxiliary engines and the main engine(s)
考题
单选题Which of the following will occur if a laptop SATA 1 drive is installed on a SATA 2 controller?（）A
The drive will run at the lower SATA 1 speed.B
The drive will not work due to incompatibility.C
The drive will run at the higher SATA 2 speed.D
The drive will have intermittent POST errors.
考题
单选题Which of the following devices is a common basic element with nearly all mechanical governors?（）A
Power pistonB
Control rackC
Weights acted on by centrifugal forceD
Isochronous droop spring
考题
单选题You have a client computer that runs Windows 7. You need to identify which unsigned drivers have beeninstalled. Which command should you run?（）A
Cipher.exe /s.B
Driverquery.exe /si.C
Msinfo32.exe /q.D
Pnputil.exe i.
考题
单选题You have created a script in the recovery catalog called backup_database. Which of the following commands would successfully execute that script？（）A
run { open script backup_database； run script backup_database }B
run { engage script backup_database； }C
run { run script backup_database； }D
Run { execute script backup_database； }E
The name backup_database is an invalid name for an RMAN script. Trying to run it from RMAN would result in an error.
考题
单选题The main operating characteristic of diesel engines which distinguishes them from other internal combustion engines is the （）A
method of supplying airB
cooling systemC
method of igniting fuelD
valve operating mechanism
热门标签
最新试卷
