单选题An overspeed safety device is usually fitted to a generator engine for （） in the event of overspeed.Acutting power off the engineBincreasing the fuel pump settingCbraking the crankshaftDstabilizing the ship speed
单选题
An overspeed safety device is usually fitted to a generator engine for （） in the event of overspeed.
A
cutting power off the engine
B
increasing the fuel pump setting
C
braking the crankshaft
D
stabilizing the ship speed
参考解析
解析：
暂无解析
相关考题：
The generator voltages are usually stepped up to the transmission voltage level by ( ). A.series capacitorB.parallel reactorsC.step-up transformersD.step-down transformers
Overspeed of the diesel engine driving an electric generator could cause ______.A.low voltage tripB.reverse power tripC.damage to windingsD.excessive exhaust temperatures
____does not belong to the mooring trial item.A.Generator sets running testB.Shafting intensity testC.The function test for pumps that serving for M.ED.M.E safety devices test
The major technical areas of computer security are usually represented by the initials CIA(71)，integrity，and authentication or availability．A．confidentialityB．confidentC．secretD．safety
An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.A.stabilizing the ship speedB.increasing the fuel pump settingC.braking the crankshaftD.cutting power off the engine
A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame ______.A.stopperB.screenC.filterD.restrictor
Safety shackles are fitted with ______．A.a threaded boltB.a round pin，with a cotter pinC.a threaded bolt，locknuts，and cotter pinsD.round pins and locknuts
An intermediate spring is ______.A.fitted in each leg of the towing bridleB.generally located between the “fishplate” and the main towing hawserC.secured at the “H” bittsD.usually made of manila hawser
As soon as the ship gets alongside the wharf, you should lower the gangway and put a （）below it.A、safety netB、safety beltC、safety lampD、safety device
单选题A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a（）.Aflame stopperBflame screenCflame filterDflame restrictor
单选题A special device that，when fitted into the rotary table，transmits torque to the kelly and simultaneously permits vertical movement of the kelly to make the hole is called a（）.Amaster bushingBkelly slipsCkelly bushingDrotary bushing
单选题To obtain maximum efficiency, two stage air compressors are usually （）.Ahorizontally mountedBnever fitted with intake filtersCfitted with intercoolersDoperated in an unloaded condition at all times
单选题The proper safety guidelines for handling any device specific consumables can be found in which of the following documentation？（）AMaterial Safety Data SheetsBInstallation GuidesCConsumer ReportsDDevices Parts Catalog
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A carburetor is required to have a safety device called a(n)（）.Apressure releaseBbackfire flame arrestorCautomatic shut offDflow valve
单选题To check the setting of the overspeed trip on a diesel powered generator, you would use a （）.AtachometerBtorsion meterCdynamometerDpony brake
单选题The power factor at which a paralleled AC generator operates is usually adjusted by the （）.Aconnected loadBprime mover speedCfield excitationDgenerators rated voltage
单选题Air chambers are usually fitted to reciprocating pumps in order to （）.Aincrease discharge pressureBincrease suction vacuumCdevelop pulsation flowDkeep a steady rate of flow
单选题Safety shackles are fitted with（）.Aa threaded boltBa round pin，with a cotter pinCa threaded bolt，locknuts，and cotter pinsDround pins and locknuts
单选题Personnel working aloft (above 2metres) should wear（）or other arresting device at all times.Aa safety harness with lifelineBa safety netCa life buoyDbuoyancy agarments
单选题Which of the following is NOT true according to the passage?（）ABoth the main steering gear and the auxiliary steering gear should be operatedBThe alarms fitted to the remote control system should be operatedCThe emergency generator compartment should be checkedDThe communication system between the bridge and the steering gear compartment should be operated
单选题The（）is fitted in the main steam supply line and is usually of the non-return type.Amain steam stop valveBauxiliary steam stop valveCfeed check or control valveDblow down valve
单选题To absorb the wear resulting from impeller rotation and abrasives in the liquid, a centrifugal pump is usually fitted with （）.Alantern ringsBbearingsCeasing volutesDwearing rings
单选题Overspeed of the diesel engine driving an electric generator could cause（）.Alow voltage tripBreverse power tripCdamage to windingsDexcessive exhaust temperatures
单选题Hydrocarbon vapors are usually detected by the use of the （）.Aflame safety lampBcombustible gas indicatorCgasometerDoxygen indicator
单选题Which one is not important for your safety on board ship?（）Aknow where the lifejacket is stowedBknow where the life-saving craft are fitted on the shipCknow the escape routesDGood professional knowledge
单选题A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame（）.AstopperBscreenCfilterDrestrictor