SIL是safety Integrity Lever的简称,中文的意思就是安全度等级.它是美国仪表学会(ISA)在S8.01标准中对过程工业中安全仪表系统所作的分类等级.SIL分为1、2、3三级。其中2级每年故降危险的平均概率为()之间A、0.1~1B、0.01~0.1C、0.001~0.01D、0.0001~0.001
SIL是safety Integrity Lever的简称,中文的意思就是安全度等级.它是美国仪表学会(ISA)在S8.01标准中对过程工业中安全仪表系统所作的分类等级.SIL分为1、2、3三级。其中2级每年故降危险的平均概率为()之间
- A、0.1~1
- B、0.01~0.1
- C、0.001~0.01
- D、0.0001~0.001
相关考题:
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
The lifeboat releasing gear lever should be marked with the words ______.A.DANGER,DO NOT TOUCHB.DANGER,BOAT MAY DROPC.DANGER,LEVER RELEASES BOATD.DANGER,LEVER DROPS BOAT
以下叙述不正确的是()A、磁场强度单位的中文名称“安培每米”,简称“安每米”B、磁场强度单位的中文符号是“安/米”或“安²米-1”C、电阻率的中文名称是“欧姆²米”,简称“欧²米”D、电阻率的中文符号是“欧²米”
单选题The lifeboat releasing gear lever should be marked with the words().ADANGER,DO NOT TOUCHBDANGER,BOAT MAY DROPCDANGER,LEVER RELEASES BOATDDANGER,LEVER DROPS BOAT
单选题The control lever for the mechanical disengaging apparatus in a lifeboat shall().Abe painted bright redBbe secured to a permanent part of the lifeboat structureChave the area surrounding the lever painted whiteDAll of the above