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 main generators are connected to（）.
A
distribution boards
B
section boards
C
emergency switch boards
D
main switch boards
参考答案
参考解析
解析：
暂无解析
更多 “单选题The main generators are connected to（）.A distribution boardsB section boardsC emergency switch boardsD main switch boards” 相关考题
考题
Energy is obtained from rivers by______.A. building bridges across themB. driving generators into themC. building dams across themD. directing them into homes and factories
考题
We find your terms()and now send you our order for 3 sets of generators.
A、satisfiedB、satisfactionC、satisfactoryD、of satisfaction
考题
The emergency generator or emergency battery is connected to _______on most large ships.A.distribution boardsB.section boardsC.emergency switch boardsD.main switch boards
考题
The main generators are connected to ______.A.distribution boardsB.section boardsC.emergency switch boardsD.main switch boards
考题
While paralleling two AC generators using synchronizing lamps only, both lamps will go dark when the generators are______.A.running at the same speedB.groundedC.of the same polarityD.in phase
考题
A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the ______．A.Fire hose might be damaged by cargo operationsB.Vessel is in portC.Fire-main system is not chargedD.Fire pumps are used for purposes other than supplying water to the fire main
考题
Where is the TX reference point? （）A、Where the jumper cable is connected to the output of the TX.B、Where the jumper cable is connected to the RBS.C、Where the jumper cable is connected to the output of the combiner.D、Where the jumper cable is connected to the antenna.E、Immediately outside the antenna.
考题
单选题The operating diesel generators will have their exhaust temperatures, cooling water and lubricating oil temperatures and pressures （） in much the same way as for the main engine.A
to be keptB
loggedC
changedD
has remained
考题
单选题Voltage generated by most AC generators is fed from the machine to the bus by means of（）.A
brushes on a commutatorB
brushes on slip ringsC
slip rings on a commutatorD
direct connections from the stator
考题
单选题Your company has a main office and two branch offices that are connected by WAN links. The main office runs the DNS service on three domain controllers. The zone for your domain is configured as an Active Directory-integrated zone. Each branch office has a single member server that hosts a secondary zone for the domain. The DNS servers in the branch offices use the main office DNS server as the DNS Master server for the zone. You need to minimize DNS zone transfer traffic over the WAN links. What should you do？（）A
Decrease the Retry Interval setting in the Start of Authority （SOA） record for the zoneB
Decrease the Refresh Interval setting in the Start of Authority （SOA） record for the zoneC
Increase the Refresh Interval setting in the Start of Authority （SOA） record for the zoneD
Disable the netmask ordering option in the properties of the DNS master server for the zone.
考题
单选题Which is a function of the voltage regulators used with AC generators?（）A
To cut out generators when they are no longer requiredB
To cut in additional generators automatically as requiredC
To divide the KW load equally between generators operating in parallelD
To divide reactive current between generators operating in parallel
考题
单选题While paralleling two AC generators using synchronizing lamps only, both lamps will go dark when the generators are （）.A
running at the same speedB
groundedC
of the same polarityD
in phase
考题
单选题Which of the following statements represents the main difference between a relay and a contactor?（）A
Contactors control current and relays control voltageB
A relay is series connected and a contactor is parallel connectedC
Contactors can handle heavier loads than relaysD
Contactors are made from silver and relays are made from copper
考题
单选题Normally，potable water systems are connected directly to the（）.A
fire-main systemB
feed-water systemC
freshwater sanitary systemD
domestic water tank
考题
单选题Multiple fire pumps may be used for other purposes provided that one pump is（）.A
on line to the fire mainB
kept available for use on the fire main at all timesC
capable of being connected to the fire mainD
rated at or above 125 psi
考题
单选题Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）A
SensitivityB
PowerC
Speed droopD
Compensation
考题
单选题Brushless generators are designed to operate without the use of（）.A
brushesB
slip ringsC
commutatorsD
all of the above
考题
单选题A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the（）.A
fire hose might be damaged by cargo operationsB
vessel is in portC
fire-main system is not chargedD
fire pumps are used for purposes other than supplying water to the fire main
考题
单选题You are the network administrator for Tailspin Toys. The company has a main office and two branch offices. The network in the main office contains 10 servers and 100 client computers. Each branch office contains 5 servers and 50 client computers. Each branch office is connected to the main office by a direct T1 line. The network design requires that company IP addresses must be assigned from a single classful private IP address range. The network is assigned a class C private IP address range to allocate IP addresses for servers and client computers. Tailspin Toys acquires a company named Wingtip Toys. The acquisition will increase the number of servers to 20 and the number of client computers to 200 in the main office. The acquisition is expected to increase the number of servers to 20 and the number of client computers to 200 in the branch offices. The acquisition will also add 10 more branch offices. After the acquisition， all branch offices will be the same size. Each branch office will be connected to the main office by a direct T1 line. The new company will follow the Tailspin Toys network design requirements. You need to plan the IP addressing for the new company. You need to comply with the network design requirement. What should you do？（）A
Assign the main office and each branch office a new class A private IP address range. B
Assign the main office and each branch office a new class B private IP address range.C
Assign the main office and each branch office a subnet from a new class B private IP address range.D
Assign the main office and each branch office a subnet from the current class C private IP address range.
考题
单选题Which CLI command displays the currently connected PPPoA subscribers?（）A
show usersB
show subscriberC
show aaa subscriberD
show connected subscriber
考题
单选题The linear motion of a diesel engine piston is converted to the rotary motion required to drive gears, propeller shafts, and generators by the （）.A
flywheelB
crankshaftC
journal bearingsD
camshaft
考题
单选题When two DC generators operate in parallel, they are protected against motorizing by（）A
blow out coilsB
governor relayC
under voltage tripsD
reverse current trips
考题
单选题If two AC generators are to be operated in parallel, the load is distributed evenly by（）A
means of rheostat the governor settingsB
a balance coil excitationC
adjusting the governor settingsD
changing excitation
考题
单选题Where tanks are arranged for either oil or ballast （） must be fitted in the pipe so that only the ballast main or the oil transfer main connected to the tank.A
a sea water chestB
a change-over chestC
a buffer tankD
a three-way valve
考题
单选题DC generators are classified according to the manner in which（）A
they are usedB
the field windings are connected to the loadC
the armature circuit is connected to the loadD
the field windings are connected to the armature circuit
热门标签
最新试卷