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
A switchboard for an AC electrical system requires the use of which of the following devices（）.
A
Frequency meter
B
Ohmmeter
C
Induction voltage regulator
D
Current transformer governor
参考答案
参考解析
解析：
暂无解析
更多 “单选题A switchboard for an AC electrical system requires the use of which of the following devices（）.A Frequency meterB OhmmeterC Induction voltage regulatorD Current transformer governor” 相关考题
考题
Which system should be supplied to obtain the best efficiency and lowest emissions?A.Lean combustion principleB.Fuel oil systemC.Electrical control systemD.Electronic control system
考题
A switchboard for an AC electrical system requires the use of which of the following devices?A.Frequency meter.B.Ohmmeter.C.Induction voltage regulator.D.Current transformer governor.
考题
Loran-C is which type of system ________．A.Reflected electronB.Electrical radiationC.Quarterpoint electrical navigationD.Hyperbolic radio navigation
考题
Deep-fat cooking equipment shall be fitted with the following:（）A、An automatic or manual fixed extinguishing system tested to an appropriate standardacceptable to the OrganizationB、Controls for manual operation of the fire-extinguishing system which are clearlylabeled for ready use by the crewC、Arrangements for automatically shutting off the electrical power upon activation of thefire-extinguishing systemD、an alarm for indicating operation of the fire-extinguishing system in the galley wherethe equipment is installed
考题
Which two statements best describe the wireless security standard that is defined by WPA (Choose two.)（）。A、It specifies use of a static encryption key that must be changed frequently to enhance securityB、It requires use of an open authentication methodC、It specifies the use of dynamic encryption keys that change each time a client establishes a connectionD、It requires that all access points and wireless devices use the same encryption keyE、It includes authentication by PSK
考题
A system has three different network adapters installed. Which of the following should a technician use to get the details of all the adapters at the same time?（）A、IPCONFIG /ALLB、NETSTAT /AC、NBTSTAT /ALLD、PING LOCALHOST
考题
Company.com is running a p5-550 system with inactive processors. The system is managed using the Integrated Virtualization Manager. How would the system administrator activate two additional processors？（）A、Use the Advanced Systems Management Interface to enter the Capacity on Demand Enablement code.B、Use the Web-based System Manager Interface to enter the Capacity on Demand enablement code.C、Use smitty or smit interface to enter the Capacity on Demand enablement code.D、Use oem_setup_env on the Virtual I/O Server to enter the Capacity on Demand enablement code.
考题
A customer is debating whether to use Shared Ethernet versus Virtual Ethernet. Which of the following best describes a key difference between Shared and Virtual Ethernet？（）A、Shared Ethernet runs on POWER4 systemsB、Virtual Ethernet runs on POWER4 systemsC、Shared Ethernet requires a Virtual I/O server and Advanced Power VirtualizationD、Virtual Ethernet requires a Virtual I/O server and Advanced Power Virtualization
考题
What is a design consideration when using existing PCIe I/O drawers in a maximum bandwidth/throughput configuration on a new Power 750 system?（）A、The new system requires 1 installed processor card for the GX++ bus adapterB、The new system requires a minimum of 2 installed processor cards for the GX++ bus adapterC、The new system requires a minimum of 3 installed processor cards and the HPC InfiniBand cluster adapterD、The new system requires 1 installed processor card for the GX++ bus adapter and the HPC InfiniBand cluster adapter
考题
The current time zone for one of the user sessions is set to the database local time zone. For one application， the user session requires the time zone to be set to the local operating system time zone without affecting other user sessions. Which two solutions could the user implement to achieve this objective？ （）A、 use the ALTER SYSTEM command to change the time zoneB、 use the ALTER SESSION command to change the time zoneC、 use the ALTER DATABASE command to change the time zoneD、 set the value for the operating system variable ORA_SDTZ on the client machineE、 set the value for the operating system variable ORA_SDTZ on the database server machine
考题
单选题Loran-C is which type of system（）.A
Reflected electronB
Electrical radiationC
Quarterpoint electrical navigationD
Hyperbolic radio navigation
考题
单选题What is a design consideration when using existing PCIe I/O drawers in a maximum bandwidth/throughput configuration on a new Power 750 system?（）A
The new system requires 1 installed processor card for the GX++ bus adapterB
The new system requires a minimum of 2 installed processor cards for the GX++ bus adapterC
The new system requires a minimum of 3 installed processor cards and the HPC InfiniBand cluster adapterD
The new system requires 1 installed processor card for the GX++ bus adapter and the HPC InfiniBand cluster adapter
考题
单选题The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the （）.A
bridge control panelB
disconnect linksC
governor relay boxD
main switchboard
考题
单选题If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）A
Dry chemicalB
HalonC
Low velocity fogD
Steam
考题
单选题A switchboard, for a AC electrical distribution system, will be provided with which of the following components （）.A
Frequency meterB
AmmeterC
VoltmeterD
All of the above
考题
单选题To extinguish an electrical fire, you should use （）.A
mechanical foamB
chemical foamC
carbon dioxideD
soda acid
考题
单选题Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out （）A
De-energize the applicable switchboard busB
Bypass the interlocksC
Secure and tag the supply circuit breaker in the open positionD
Station a man at the circuit supply switch
考题
单选题（） is a machine by which electrical energy is transformed into mechanical energy.A
An alternatorB
An electric motorC
A diesel engineD
A main switchboard
考题
单选题Your vessel is equipped with a fixed C02 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）.A
Use the C02 system and evacuate the engine roomB
Use the fire main system and evacuate the engine roomC
Evacuate the engine room and use the C02 systemD
Evacuate the engine room and use the fire main system
考题
单选题Which extinguishing agent is the best for use on electrical fires?（）A
FoamB
CO2C
Dry chemicalD
Water fog
考题
单选题A ground in an electrical circuit outside the engine room （）.A
cannot be detected tinder normal conditionsB
is of no consequence to engineering personnelC
is indicated at the branch circuit breaker panelD
is indicated by the ground detecting lamps on the main switchboard
考题
单选题In an alternating current electrical system, a low system power factor is a direct sign of （）A
wasted energyB
efficient operationC
a short in the exciter field windingsD
an excessive number of minor system grounds
考题
多选题Deep-fat cooking equipment shall be fitted with the following:（）AAn automatic or manual fixed extinguishing system tested to an appropriate standardacceptable to the OrganizationBControls for manual operation of the fire-extinguishing system which are clearlylabeled for ready use by the crewCArrangements for automatically shutting off the electrical power upon activation of thefire-extinguishing systemDan alarm for indicating operation of the fire-extinguishing system in the galley wherethe equipment is installed
考题
单选题Which of the listed fire extinguishers is recommended for use on an electrical switchboard fire?（）A
CO2B
ABC dry chemicalC
CO2 propelled foamD
All of the above
考题
单选题A switchboard for an AC electrical system requires the use of which of the following devices（）.A
Frequency meterB
OhmmeterC
Induction voltage regulatorD
Current transformer governor
考题
单选题Which of the following statements best describes the relationship between a logical volume and a journaled file system (JFS)?（）A
Increasing the size of a logical volume also increases the size of the file systemB
Reducing the size of a logical volume requires reducing the size of the file system firstC
Increasing the size of a file system requires increasing the size of the logical volume firstD
Increasing the size of a file system also increases the size of the logical volume when necessary
考题
单选题A transformer in an electric circuit serves to （）A
generate its own electrical powerB
transform electrical energy into mechanical energyC
increase or decrease circuit voltage as requiredD
convert AC current to DC current
热门标签
最新试卷
