单选题When a sudden increase in steam demand occurs from the boiler, the water level in the drum at the higher pressure will（）Arise quicklyBrise slowlyCdrop quicklyDdrop slowly
单选题
When a sudden increase in steam demand occurs from the boiler, the water level in the drum at the higher pressure will（）
A
rise quickly
B
rise slowly
C
drop quickly
D
drop slowly
参考解析
解析：
暂无解析
相关考题：
Your network contains two offices named Office1 and Office2. The offices connect to each other by using a demand-dial connection.You add a new subnet in Office2.You need to ensure that a demand-dial connection starts when users attempt to connect to resources in the new Office2 subnet.What should you do from the Remote Routing and Access console？（）A. From the remote access server in Office2, right-click the demand-dial interface and click Connect.B. From the remote access server in Office1, right-click the demand-dial interface and click Connect.C. From the remote access server in Office1, right-click the demand-dial interface and click Update Routes.D. From the remote access server in Office2, right-click the demand-dial interface and click Update Routes.
If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be ______.A.high steam pressure in the boilerB.abnormally high feed-water temperatureC.abnormally high boiler water temperatureD.steam demand exceeding feed pump capacity
Steam smoke will occur when ______.A.extremely cold air from shore passes over warmer waterB.warm dry air from shore passes over cooler waterC.cold ocean water evaporates into warm airD.cool rain passes through a warm air mass
All electrical appliances aboard a vessel should be grounded to ______.A.prevent them from falling when the vessel rollsB.protect personnel from electrical shockC.increase their operating efficiencyD.prevent unauthorized personnel from operating them
What are two characteristics of dual-ring interconnect in SDH networks？ （）A、 It protects signals against node failures between rings.B、 It protects signals against node failure within a single ring.C、 It allows for traffic to be preempted when a ring switch occurs.D、 Traffic can be dropped and continued at interconnecting nodes.E、 It protects preemptible traffic from being dropped when a ring switch occurs.
What is the effect of using Capacity on Demand on LPARs configured on a managed system?（）A、It allows dynamic increase of CPU and memory allocation for all LPARs.B、It allows dynamic increase of CPU and memory allocation for LPARs when the 'Desired' and 'Maximum' partition profile values are equal.C、It allows dynamic increase of CPU and memory allocation for LPARs when the 'Desired' partition profile values are less than the 'Maximum' values.D、It allows dynamic increase of CPU and memory allocation for LPARs when the 'Desired' partition profile values are greater than the 'Maximum' values.
When a user tries to log into the system, the following error occurs: "3004-004. You must "exec" login from the lowest login Shell". Which of the following procedures should be performed next to determine the cause of the problem?（）A、 Reboot the system. B、 Increase the number of ptys. C、 Increase number of licenses. D、 Run df -k to check for full filesystems.
When a critical error occurs, which module in Enterprise Manager will automatically collect diagnostics data from WebLogic Server?（）A、ReportsB、ComplianceC、Support WorkbenchD、Asset DiscoveryE、visual creation of JDBC DataSource object to Oracle RAC
单选题What is NOT a function of the steam drum of a marine water-tube boiler（）.AReceives saturated steam from the generating tubesBServes as a reservoir of boiler feed waterCHolds internal fittings for separation of moisture from steamDCollects steam exhausted from the turbines
单选题When a sudden increase in steam demand occurs from the boiler, the water level in the drum at the higher pressure will（）Arise quicklyBrise slowlyCdrop quicklyDdrop slowly
单选题A probable cause for a turbo generator tripping out on overspeed is a sudden（）Aloss of field excitationBtotal loss of loadClarge increase in loadDloss of steam pressure
单选题On a clear，warm day，you notice the approach of a tall cumulus cloud. The cloud top has hard well defined edges and rain is falling from the dark lower edge. Should this cloud pass directly overhead（）.Ait will be preceded by a sudden increase in wind speedBit will be preceded by a sudden decrease in wind speedCthe wind speed will not change as it passesDthe wind will back rapidly to left in a counterclockwise direction as it passes
单选题When a critical error occurs, which module in Enterprise Manager will automatically collect diagnostics data from WebLogic Server?（）AReportsBComplianceCSupport WorkbenchDAsset DiscoveryEvisual creation of JDBC DataSource object to Oracle RAC
单选题When a sudden increase in steam demand comes to normal, the drum pressure will and water level in the drum will（）.Arise, rise alsoBrise, dropCdrop, riseDdrop, drop also
单选题What occurs in the combustion space of a diesel engine cylinder shortly after ignition and before the piston reaches TDC?（）ARapid increase in temperature with constant pressureBRapid increase in pressure with constant temperatureCRapid increase in pressure and temperatureDRapid increase in volume and decrease in pressure
单选题The（）enables water to be blow down or emptied from the boilerIt may be used when partially or completely emptying the boiler.Amain stem stop valveBauxiliary steam stop valveCfeed check or control valveDblow down valve
多选题What are two characteristics of dual-ring interconnect in SONET networks? （）(Choose two.)AIt protects signals against node failures between rings.BIt protects signals against node failure within a single ring.CIt allows for traffic to be preempted when a ring switch occurs.DTraffic can be dropped and continued at interconnecting nodes.EIt protects preemptible traffic from being dropped when a ring switch occurs.
单选题When a user tries to log into the system, the following error occurs: "3004-004. You must "exec" login from the lowest login Shell". Which of the following procedures should be performed next to determine the cause of the problem?（）A Reboot the system. B Increase the number of ptys. C Increase number of licenses. D Run df -k to check for full filesystems.
单选题A feed pump for an auxiliary boiler might lose suction if the （）.Aboiler water level is lowBfeedwater is too hotCboiler steam demand is lowDfeedwater is too cold
单选题The water level in a steaming auxiliary boiler will always （）Arise when the steam pressure is increasedBremain constant as long as the feed pump operatesCfall when the steam pressure is decreasedDvary as the steam demand changes
单选题Steam smoke will occur when（）.Aextremely cold air from shore passes over warmer waterBwarm dry air from shore passes over cooler waterCcold ocean water evaporates into warm airDcool rain passes through a warm air mass
单选题What is the effect of using Capacity on Demand on LPARs configured on a managed system?（）AIt allows dynamic increase of CPU and memory allocation for all LPARs.BIt allows dynamic increase of CPU and memory allocation for LPARs when the 'Desired' and 'Maximum' partition profile values are equal.CIt allows dynamic increase of CPU and memory allocation for LPARs when the 'Desired' partition profile values are less than the 'Maximum' values.DIt allows dynamic increase of CPU and memory allocation for LPARs when the 'Desired' partition profile values are greater than the 'Maximum' values.
单选题Foaming in the steam drum may be caused by （） in a boiler.Aoxygen in the waterBpoor boiler designCdensity too highDexcessive steam demand
单选题The boiler is fired （） the demand for steam exceeds that available from exhaust gas heating.AwheneverBhoweverCwhereverDwhether
单选题When steam is being raised on a boiler, the water level will normally （）.Adrop as the boiler warms upBrise as the boiler warms upCremain unchanged until the boiler is hot enoughDrise and fall with the steam demand
单选题The old lady was directly sent to hospital when she passed _____ from a sudden heart attack.AoffBawayCoverDin
单选题When fighting a fire in an enclosed space，the hose team should crouch as low as possible to（）.Aprotect themselves from smokeBobtain the best available airCallow the heat and steam to pass overheadDAll of the above
单选题The deck water seal of the inert gas system（）.Acools the inert gas and prevents soot from entering the cargo tanksBacts as an emergency shutdown when inlet pressures exceed the safe working pressureCprevents the backflow of hydrocarbon gasses into nonhazardous areasDrelieves sudden large overpressures in the system