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《特种设备作业人员证》每()年复审一次。

A. 2年
B. 3年
C. 4年
D. 5年

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The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a ______．

A. String
B. Stand
C. Joint
D. Standpipe

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按JG5071规定，滑轮(或链轮)应设有防止钢丝绳(或链条)脱槽的装置，并能防止异物进入滑轮(或链轮)，滑轮的节径与悬挂钢丝绳的公称直径之比不得小于()。

A. 40
B. 30

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Your tanker is carrying a cargo of styrene．Which of the following is NOT a requirement for

A. P/V valves with galvanized parts must be replaced
B. Authorization to carry styrene must be endorsed on the Certificate of Inspection
C. You must have a Certificate of Inhibition provided by the shipper
D. The cargo tank heating coils must be blanked off

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______ are experienced in temperate latitudes during warm summer weather but rarely exceed

A. Trade Winds
B. Winds of the temperate zones
C. Monsoons
D. Land and Sea Breezes

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《特种设备作业人员证》每()年复审一次。

A. 2年 B. 3年 C. 4年 D. 5年

The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a ______．

按JG5071规定，滑轮(或链轮)应设有防止钢丝绳(或链条)脱槽的装置，并能防止异物进入滑轮(或链轮)，滑轮的节径与悬挂钢丝绳的公称直径之比不得小于()。

Your tanker is carrying a cargo of styrene．Which of the following is NOT a requirement for

______ are experienced in temperate latitudes during warm summer weather but rarely exceed

A. 2年
B. 3年
C. 4年
D. 5年