控制时间限设定值菜单（）功能是在丙烷机断电后到丙烷机重新启动之间的时间间隔。A、LO OIL INJECTION TEMPERATURE BYPASSB、FILTER DIFFERENTIAL PRESSURE CHANGE-OVER TIMERC、PUMP RUN LIMIT WITHOUT OIL PRESSURE TIMERD、AUTO RESTART AFTER POWER FAILURE TIMER
控制时间限设定值菜单（）功能是在丙烷机断电后到丙烷机重新启动之间的时间间隔。
- A、LO OIL INJECTION TEMPERATURE BYPASS
- B、FILTER DIFFERENTIAL PRESSURE CHANGE-OVER TIMER
- C、PUMP RUN LIMIT WITHOUT OIL PRESSURE TIMER
- D、AUTO RESTART AFTER POWER FAILURE TIMER
相关考题：
The pressure differential across a diesel engine lube oil system duplex filter should be checked to ________.A.determine the need for filter cleaningB.measure any change in oil viscosityC.prevent damage to the filterD.determine the need for batch filtration
丙烷机安全设定值菜单（）功能是丙烷机入口压力低安全设定值，报警值5英寸汞柱，关断值3英寸汞柱，复位值6PSIA、LO OIL INJECTION TEMPERATUREB、HI OIL INJECTION TEMPERATUREC、LO SUCTION PRESSURED、HI DISCHARGE PRESSURE
控制时间限设定值菜单（）功能是当丙烷机被关停而同时收到一个启动信号时，反循环定时器将会动作，丙烷机在定时器工作时间内将无法启动。A、CAPACITY HOLD SOLENOID OFF TIMEB、CAPACITY HOLD SOLENOID ON TIMEC、ANTICYCLE START TIMED、START LAG COMPRESSOR TIMER
丙烷机安全设定值菜单（）功能是丙烷机入口温度低安全设定值，报警值－95华氏度，关断值－99华氏度，复位值－90华氏度A、LO SUCTION TEMPERATUREB、HI DISCHARGE TEMPERATUREC、LO PROCESS CONTROL TEMPERATURED、HI PROCESS CONTROL TEMPERATURE
控制时间限设定值菜单（）功能是在丙烷机启动过程中旁通润滑油注入温度低信号的时间长度。A、LO OIL INJECTION TEMPERATURE BYPASSB、FILTER DIFFERENTIAL PRESSURE CHANGE-OVER TIMERC、PUMP RUN LIMIT WITHOUT OIL PRESSURE TIMERD、AUTO RESTART AFTER POWER FAILURE TIMER
丙烷机操作选项（）用来选择压缩机在断电后再重新启动的方式，假如选择自动启动，将由AUTO RESTART AFTER POWER FAIL定时器来控制；选择手动方式则可手动启动压缩机A、OPTION #1B、OPTION #2C、OPTION #3D、OPTION #4
丙烷机控制时间限设定值菜单（）功能是不允许加/减载电磁阀得电加载的时间长度。A、CAPACITY INCREASE SOLENOID OFF TIMERB、CAPACITY DECREASE SOLENOID ON TIMERC、CAPACITY DECREASE SOLENOID OFF TIMERD、SLIDE VALVE RETURN AT SHUTDOWN TIMER
丙烷机安全设定值菜单（）功能是过程控制温度高安全设定值，报警值100华氏度A、LO SUCTION TEMPERATUREB、HI DISCHARGE TEMPERATUREC、LO PROCESS CONTROL TEMPERATURED、HI PROCESS CONTROL TEMPERATURE
丙烷机安全设定值菜单（）功能是丙烷机启动过程中润滑油过滤器差压高安全设定值，关断值40PSI，复位值25PSIA、LO RUN OIL PRESSUREB、HI START FILTER DIFFERENTIAL PRESSUREC、HI RUN FILTER DIFFERENTIAL PRESSURED、D、CAPACITY INREASE SOLENOID ON TIMER
控制时间限设定值菜单（）功能是润滑油泵预润滑时间长度。A、MOTOR STARTER AUXILIARY CONTA、CT BYPASSB、OIL PUMP PRELUBE BEFORE START TIMERC、OIL PRESSURE BYPASS ALLOW TIMERD、OIL PRESSURE FAILURE DELAY TIMER
控制时间限设定值菜单（）功能是当在一定时间内压缩机的启动次数达到该设定值时，压缩机将在一个小时内无法启动。A、STOP LAG COMPRESSOR TIMERB、FORCE START LAG COMPRESSOR TIMERC、HOT STARTS/HR COUNTERD、START LAG COMPRESSOR TIMER
控制时间限设定值菜单（）功能是在丙烷机启动过程中旁通润滑油压力低于润滑油运行压力低关停信号的时间长度。A、MOTOR STARTER AUXILIARY CONTA、CT BYPASSB、OIL PUMP PRELUBE BEFORE START TIMERC、OIL PRESSURE BYPASS ALLOW TIMERD、OIL PRESSURE FAILURE DELAY TIMER
丙烷机安全设定值菜单（）功能是丙烷机出口压力高安全设定值，报警值240PSI，关断值250PSI，复位值240PSIA、LO OIL INJECTION TEMPERATUREB、HI OIL INJECTION TEMPERATUREC、LO SUCTION PRESSURED、HI DISCHARGE PRESSURE
丙烷机控制时间限设定值菜单（）功能是在自动加/减载模式下，如果需要降低丙烷机的负载，加/减载电磁阀将会在定时器的时间长度内对丙烷机进行减载。A、CAPACITY INCREASE SOLENOID OFF TIMERB、CAPACITY DECREASE SOLENOID ON TIMERC、CAPACITY DECREASE SOLENOID OFF TIMERD、SLIDE VALVE RETURN AT SHUTDOWN TIMER
丙烷机控制时间限设定值菜单（）功能是在自动加/减载模式下，如果需要增加丙烷机的负载，加/减载电磁阀将会在定时器的时间长度内对丙烷机进行加载A、LO RUN OIL PRESSUREB、HI START FILTER DIFFERENTIAL PRESSUREC、HI RUN FILTER DIFFERENTIAL PRESSURED、D、CAPACITY INREASE SOLENOID ON TIMER
丙烷机安全设定值菜单（）功能是润滑油注入温度低安全设定值，报警值90华氏度，关断值90华氏度，复位值95华氏度A、LO OIL INJECTION TEMPERATUREB、HI OIL INJECTION TEMPERATUREC、LO SUCTION PRESSURED、HI DISCHARGE PRESSURE
丙烷机安全设定值菜单（）功能是过程控制温度低安全设定值，报警值－50华氏度，关断值－55华氏度，复位值－45华氏度A、LO SUCTION TEMPERATUREB、HI DISCHARGE TEMPERATUREC、LO PROCESS CONTROL TEMPERATURED、HI PROCESS CONTROL TEMPERATURE
丙烷机安全设定值菜单（）功能是丙烷机运行过程中润滑油过滤器差压高安全设定值，报警值12PSI，关断值15PSI，复位值10PSIA、LO RUN OIL PRESSUREB、HI START FILTER DIFFERENTIAL PRESSUREC、HI RUN FILTER DIFFERENTIAL PRESSURED、D、CAPACITY INREASE SOLENOID ON TIMER
单选题The pressure difference before and after the lube oil filter indicates （）the filter should be cleaned.AwhenBhowCwhereDwhether
单选题To determine if the lube oil filter elements need changing, （）.Aopen the filter and inspect the elementsBcheck the lube oil pump discharge pressureCcheck the lube oil header pressureDcheck the pressure drop across the filter
单选题The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to （）.Aassist in a quick cutoff of fuel injectionBallow oil backflow from the injector to the helixCreduce fuel oil pressure between injection strokesDmeter the quantity of fuel delivered
单选题Increasing differential pressure of an oil filter indicates that （）Ait is dirtyBit is leakyCit has been renewedDall the above
单选题The pressure differential across a diesel engine lube oil system duplex filter should be checked to （）Adetermine the need for filter cleaningBmeasure any change in oil viscosityCprevent damage to the filterDdetermine the need for batch filtration