卧罐(油罐车)一般在液高1/2处取样或测温。具体做法是:将取样器或保温盒的底接触液面,拉紧绳子贴着参照点,测出参照点以上绳子长等于液高长为AB。要达到在液高1/2处取样或测温的目的,应( )。A.投放AB/2加取样器高取样、投放AB/2测温B.投放AB/2减取样器高取样、投放AB/2测温C.投放AB/2取样、投放AB/2测温D.投放AB/2加取样器高取样、投放AB/2加保温盒高测温
卧罐(油罐车)一般在液高1/2处取样或测温。具体做法是:将取样器或保温盒的底接触液面,拉紧绳子贴着参照点,测出参照点以上绳子长等于液高长为AB。要达到在液高1/2处取样或测温的目的,应( )。
A.投放AB/2加取样器高取样、投放AB/2测温
B.投放AB/2减取样器高取样、投放AB/2测温
C.投放AB/2取样、投放AB/2测温
D.投放AB/2加取样器高取样、投放AB/2加保温盒高测温
相关考题:
卧罐(油罐车)一般在液高1/2处取样或测温。具体做法是:将取样器或保温盒的底接触液面,拉紧绳子贴着参照点,测出参照点以上绳子长等于液高长为AB。要达到在液高1/2处取样或测温的目的,应()。A、投放AB/2加取样器高取样、投放AB/2测温B、投放AB/2减取样器高取样、投放AB/2测温C、投放AB/2取样、投放AB/2测温D、投放AB/2加取样器高取样、投放AB/2加保温盒高测温
卧罐(油罐车)一般在液高1/2处测温。具体做法是:将保温盒的底接触液面,拉紧绳子贴着参照点,测出参照点以上绳子长等于液高长为AB。要达到在液高1/2处测温的目的,应()。A、投放AB/2测温B、投放AB/2减杯盒温度计长测温C、投放AB/2加杯盒温度计长测温D、投放AB/2加保温盒长的1/2测温
单选题对于油罐车中的汽油的取样,最好选用()。A加重取样器B取样笼C底部取样器D管式取样器