Current measuring instruments must always be connected in ______.A.series with a circuitB.parallel with a circuitC.series-parallel with a circuitD.delta with the shunt
Current measuring instruments must always be connected in ______.
A.series with a circuit
B.parallel with a circuit
C.series-parallel with a circuit
D.delta with the shunt
相关考题:
No matter what you may say, he () to his own views. A.would always stickB.will always stickC.should always stickD.must always stick to
For a current liability to exist, the following two tests must be met. The liability must be due usually within a year and must be paid out of current assets.()
Which statement concerning current is TRUE ________.A.Current can be determined by measuring the direction and distance between simultaneous EP and DR positionsB.The drift of the current should be averaged out on a one hour basisC.After the current is determined,it should not be used for further plotting because it is an unknown variableD.The distance between a simultaneous DR position and fix is equal to the drift of the current
Which condition must be satisfied before an EIGRP neighbor can be considered a feasiblesuccessor?()A、The neighbor's advertised distance must be less than or equal to the feasible distance of the current successor.B、The neighbor's advertised distance must be less than the f easible distance of the current successor.C、The neighbor's advertised distance must be greater than the feasible distance of the current successor.D、The neighbor's advertised distance must be equal to the feasible distance of the current successor .E、The neighbor's advertised distance must be greater than or equal to the feasible distance of the current successor.
You have configured a Cisco Catalyst switch to perform Layer 3 routing via an SVI and have assigned that interface to VLAN 20. To check the status of the SVI, you issue the show interfaces vlan 20 command at the CLI prompt. You see from the output display that the interface is in an "up/up" state. What must be true in an SVI configuration to bring the VLAN and line protocol up?()A、The port must be physically connected to another Layer 3 device.B、At least one port in VLAN 20 must be active.C、The Layer 3 routing protocol must be operational and receiving routing updates from neighboring peer devices.D、Because this is a virtual interface, the operational status will always be in an "up/up" state.
The PassGuide network consists of a series of routers that are all configured for IBGP. Which one of the following IBGP characteristics is true()A、The IBGP routers must always be fully meshed.B、The IBGP routerscan be in a different AS.C、The IBGP routersmust be directly connected.D、TThe IBGP routersdo not need to be directly connected.E、None of the other alternatives apply are true
What is true regarding subqueries?()A、The inner query always sorts the results of the outer queryB、The outer query always sorts the results of the inner queryC、The outer query must return a value to the outer queryD、The inner query returns a value to the outer queryE、The inner query must always return a value or the outer query will give an error
Which statement is true about IBGP routers? ()A、They must be fully meshedB、They can be in a different ASC、They must be directly connected
An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? ()A、The switch must be configured with an IP address,subnet mask,and default gateway.B、The switch must be connected to a router over a VLAN trunk.C、The switch must be reachable through a port connected to its management VLAN.D、The switch console port must be connected to the Ethernet LAN.E、The switch management VLAN must be created and have a membership of at least one switch port.F、The switch must be fully configured as an SNMP agent.
An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? ()A、The switch must be configured with an IP address, subnet mask, and default gateway.B、The switch must be connected to a router over a VLAN trunk.C、The switch must be reachable through a port connected to its management VLAN.D、The switch console port must be connected to the Ethernet LAN.E、The switch management VLAN must be created and have a membership of at least one switch
Which of the following is true about an OSPF area border router (ABR)?()A、The ABR must have multiple interfaces connected to the backbone areAB、An ABR is a router with two interfaces, each connected to a different nonbackbone areAC、The only requirement to be considered an ABR is at least one interface connected to the backbone areAD、An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
单选题A lifeline must be connected to the liferaft ().Aat the bowBat the sternCin the middleDall around
单选题Voltage will always lead current in a/an ()Acapacitive circuitBinductive circuitCmagnetic circuitDresistive circuit
单选题What is true regarding subqueries?()AThe inner query always sorts the results of the outer queryBThe outer query always sorts the results of the inner queryCThe outer query must return a value to the outer queryDThe inner query returns a value to the outer queryEThe inner query must always return a value or the outer query will give an error
单选题You need to ensure that old data and current data can be queried according to the business requirements. What should you do?()ASpecify a view based on the archival data table and current data tables.BSpecify that the data must be queried by using a stored procedure.CSpecify that both the archival data table and the current data tables must have indexes created on the same columns.DSpecify that a SQL Server Agent job must be used to copy current data into the archival data table each night.
单选题When measuring AC current flow, you must always connect the meter ()Ain series with the power source and loadBin parallel with the power source and loadCinsuring correct polarityDusing the lowest range possible to prevent instrument damage
单选题The PassGuide network consists of a series of routers that are all configured for IBGP. Which one of the following IBGP characteristics is true()AThe IBGP routers must always be fully meshed.BThe IBGP routerscan be in a different AS.CThe IBGP routersmust be directly connected.DTThe IBGP routersdo not need to be directly connected.ENone of the other alternatives apply are true
单选题Internal combustion engine crankcase vent outlets must be equipped with ()Ahinged rain guardsBcorrosion resistant flame screensCdipsticks for measuring oil levelsDcrankcase ventilation fans
单选题Which condition must be satisfied before an EIGRP neighbor can be considered a feasiblesuccessor?()AThe neighbor's advertised distance must be less than or equal to the feasible distance of the current successor.BThe neighbor's advertised distance must be less than the f easible distance of the current successor.CThe neighbor's advertised distance must be greater than the feasible distance of the current successor.DThe neighbor's advertised distance must be equal to the feasible distance of the current successor .EThe neighbor's advertised distance must be greater than or equal to the feasible distance of the current successor.
单选题In a diesel engine jacket water cooler, with seawater cooling the fresh water, the()Asea water temperature must never be warmer than 40℃Bjacket water pressure should always be greater than the sea water pressureCjacket water temperature must always be less than 60℃Djacket water pressure must always be less than the sea water pressure
单选题Which statement is true about IBGP routers? ()AThey must be fully meshedBThey can be in a different ASCThey must be directly connected
多选题An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? ()AThe switch must be configured with an IP address,subnet mask,and default gateway.BThe switch must be connected to a router over a VLAN trunk.CThe switch must be reachable through a port connected to its management VLAN.DThe switch console port must be connected to the Ethernet LAN.EThe switch management VLAN must be created and have a membership of at least one switch port.FThe switch must be fully configured as an SNMP agent.
多选题An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? ()AThe switch must be configured with an IP address, subnet mask, and default gateway.BThe switch must be connected to a router over a VLAN trunk.CThe switch must be reachable through a port connected to its management VLAN.DThe switch console port must be connected to the Ethernet LAN.EThe switch management VLAN must be created and have a membership of at least one switch
单选题Current measuring instruments must always be connected in ()Aseries with a circuitBparallel with a circuitCseries-parallel with a circuitDdelta with the shunt
单选题Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure().AnitrogenBoxygenCcarbon dioxideDwater vapor
单选题Which statement concerning current is TRUE().ACurrent can be determined by measuring the direction and distance between simultaneous EP and DR positionsBThe drift of the current should be averaged out on a one hour basisCAfter the current is determined,it should not be used for further plotting because it is an unknown variableDThe distance between a simultaneous DR position and fix is equal to the drift of the current