2022职业技能鉴定船员证冲刺密卷多选题正确答案(08.02)

1. [单选题]下列泵中不采用特殊措施不具备^{(does not have)}自吸能力的是( )。

A. 水环泵
B. 开式旋涡泵
C. 叶片泵
D. 离心泵

2. [单选题]Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an ____.

A. Orsat apparatus
B. flame safety lamp
C. Halide torch
D. combustible gas indicator

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