【名词&注释】
考试成绩(examination results)、申请人(applicant)、二冲程柴油机(two-stroke diesel engine)、准考证(examination list)、海事管理机构(maritime administration)、低位肠梗阻(distal ileus)
[单选题]If a refrigeration compressor is short cycling on high head pressure, you should _______.
A. purge the condenser if the waterside is dirty
B. check for proper water flow through the condenser
C. increase the high pressure cutout setting
D. reduce the cooling water flow
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举一反三：
[单选题]在二冲程柴油机的各种换气形式中，换气质量最好的是()
A. 直流扫气
B. 回流扫气
C. 横流扫气
D. 半回流扫气
[单选题]低位肠梗阻(distal ileus)时，呕吐出现______。
A. 早而频繁
B. 早而不频繁
C. 晚而频繁
D. 晚而不频繁
[单选题]海事管理机构(maritime administration)应当适任考试开始_______日前向申请人发放准考证，并告知申请人查询适任考试成绩的途径等事项。
A. 3
B. 4
C. 5
D. 10
[单选题]承磨环的作用是()
A. 密封
B. 散热
C. 刮油
D. 磨合
[单选题]Each ship shall carry on board a ship security plan approved by______.
A. the chief engineer officer
B. the master of the ship
C. the manager of the company
D. the Administration
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