[案例分析题] 某实验室建立了长度计量工作标准。为了对该计量标准进行核查,又不增加支出,向单位领导提出申请使用单位最高标准的量块作为该工作标准的核查标准。分析该案例。
[单选题]某轮船速12kn,逆风逆流航行,流速1kn,风使船减速1kn,0600计程仪读数为120'.0,计程仪改正率ΔL=+3%,则1h后相对计程仪读数为()。A .128'.7B .129'.7C .130'.7D .131'.7
[单选题]某轮船速14kn,顺风顺流航行,流速2kn,风使船增速1kn,0600计程仪读数为100'.0,计程仪改正率ΔL=-5%,则2h后相对计程仪读数为()。A .129'.5B .131'.6C .133'.7D .135'.8
[单选题]某轮船速12kn,顶风顺流航行,流速2kn,风使船减速1kn,0600计程仪读数为100'.0,计程仪改正率ΔL=+10%,则1h后相对计程仪读数为()。A .110'.0B .110'.9C .111'.8D .112'.7
[单选题]某轮顺风顺流航行,船速18kn,流速2kn,风对船舶航速的影响1kn,计程仪改正率-8%,0400计程仪读数L1=100'.0,则2h后相对计程仪读数L2为()。A .132'.6B .137'.0C .141'.3D .145'.7
[多选题] 装置建立低压蒸汽管网前,需要确认的工作有()。A .低压蒸汽管网所有施工项目均已完成B .低压蒸汽沿途管线低点导淋均已打开放净C .低压蒸汽流程正确无误D .低压蒸汽管线吹扫合格
[单选题]某轮顶风顺流航行,船速18kn,流速2kn,风使船减速1kn,计程仪改正率-8%,0400计程仪读数L1=100'.0,则2h后相对计程仪读数L2为()。A .132'.6B .137'.0C .141'.3D .145'.7
[单选题]某轮船速12kn,顶流顺风航行,流速2kn,风使船增速1kn,0800计程仪读数为110'.0,计程仪改正率ΔL=-10%,则1h后相对计程仪读数为()。A .121'.1B .122'.2C .123'.3D .124'.4
[单选题]某轮顺风顺流航行,船速18kn,流速2kn,风对船舶航速的影响为1kn,计程仪改正率+8%,0400计程仪读数L1=100'.0,则2h后相对计程仪读数L2为()。A .127'.8B .131'.5C .135'.2D .138'.9
[单选题]某轮顺风顶流航行,船速18kn,流速2kn,风对船舶航速的影响1kn,计程仪改正率-8%,0400计程仪读数L1=100'.0,则2h后相对计程仪读数L2为()。A .132'.6B .137'.0C .141'.3D .145'.7