【名词&注释】
额定负载(rated load)
[单选题]锚机在满足额定负载和速度的条件下应能连续工作()。
A. 15min
B. 30min
C. 45min
D. 90min
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举一反三：
[单选题]吊杆装置中，钢丝动索用的滑轮直径与绳索直径之比应为( )。
A. 6
B. 8
C. 13
D. 10
[单选题]Which of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?
A. Cooling the air to a temperature just above dew point
B. Heating the air to a point at which moisture will boil off ,then re-cooling it
C. Cooling the air to a point below dew point, then reheating it
D. Heating the air and then cooling it to a point below dew point
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