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 a AC electrical distribution system, will be provided with which of the following components （）.
A
Frequency meter
B
Ammeter
C
Voltmeter
D
All of the above
参考答案
参考解析
解析：
暂无解析
更多 “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” 相关考题
考题
Where could you monitor the correct instant for synchronizing without aid of synchroscope or synchronizing lamp?
A.Distribution boardB.Section boardC.Emergency switchboardD.Main switchboard
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
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.main switchboardD.governor relay box
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
计算机技术在饭店中的应用分为（）系统（（hotel management system）、CRS（center reservation system）中央预定系统和GDS（global distribution system）系统三个阶段。
考题
（）are used widely in the operation of warehouse and distribution center andform the basic handling device for a number of selection system.A、CranesB、ConveyorsC、ForklifttruckD、Pallets
考题
Which commands will list all the logical volumes and the file system distribution across a specific physical volume of the following？（）A、lspv -lB、lslv -pC、lsps -aD、lsvg -m
考题
A System p distribution customer is very concerned about Reliability， Availability and Serviceability （RAS）. They are planning to install several p6 servers in their facilities and want to be able to move an LPAR from one System p to another. Which of the following would accomplish this（）A、System p servers using similar SAN storageB、System p servers must share an HMCC、System p servers must have the same level HMCD、System p servers with VIOS
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Air blowing from the intake air filter of an operating air compressor indicates （）.A
broken inlet valvesB
broken discharge valvesC
pulsations in the air distribution systemD
overloading of the air distribution system
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Which of the following is the default location for Fonts in Windows 7?（）A
C:/System Files/FontsB
C:/Windows/FontsC
C:/Windows/System Files/FontsD
C:/System/Fonts
考题
单选题Accidental grounds in a shipboard electrical system must be repaired as soon as possible as they will （）A
result in immediate power outagesB
damage circuit breakersC
appear on the ground detection systemD
damage insulation and may cause outages
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It is well known that the whole power distribution of the ship’s electrical services mainly depend on the（）.A
sub-boardsB
main switchboardsC
emergency switchboardsD
distribution boards
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
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The main distribution duct in an air conditioning system which contains the cooling coils and filters is called the（）A
manifoldB
condenserC
chamberD
plenum
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