選擇我們有效的CEM PDF題庫: Certified Energy Manager (CEM),AEE CEM當然很簡單通過如果你想選擇通過 AEE CEM 認證考試來使自己在如今競爭激烈的IT行業中地位更穩固,讓自己的IT職業能力變得更強大,你必須得具有很強的專業知識。而且通過 AEE CEM 認證考試也不是很簡單的。或許通過AEE CEM認證考試是你向IT行業推廣自己的一個敲門磚,但是不一定需要花費大量的時間和精力來復習相關知識,你可以選擇用我們的 Testpdf的產品,是專門針對IT認證考試相關的培訓工具。 最新的 Energy Management CEM 免費考試真題 (Q57-Q62):問題 #57
A 50-kW induction motor (1,500 rpm synchronous speed) has a nameplate full-load rotational speed of 1,455 rpm. Field measurements show the actual rotational speed is 1,475 rpm. Using the slip method, calculate the partial load factor of the motor.
A. 80%
B. 98%
C. 46%
D. 56%
E. 101%
答案:D
問題 #58
A cooling tower delivers 29°C water to a central chilled water plant. The cooling tower is capable of delivering water to the chilled-water plant with a 6°C approach temperature to the ambient wet bulb temperature. Using this information, what type of control strategy would you recommend be added to the cooling tower operation to save additional energy?
A. Static-pressure reset
B. Chilled-water temperature reset
C. Chiller demand limiting
D. Condenser-water temperature reset
答案:D
問題 #59
Which is the best application for variable-speed drives?
A. Reciprocating air compressor
B. Centrifugal fan motor in a multi-zone air conditioning system
C. Centrifugal fan motor in a variable-air volume air-conditioning system
D. Waste-water sewer lift pump
答案:C
問題 #60
Which problems can be caused by poor power quality?
A. Circuit breakers tripping
B. Equipment overheating
C. Answers B and C
D. Induction motors running backwards
E. All of the above
答案:C
問題 #61
A cooling tower is delivering water to a chilled-water plant. The cooling tower outlet temperature has a 6°C approach temperature to the ambient air, wet-bulb temperature. The outside air conditions are 20°C dry bulb,
60% relative humidity. Using the psychrometric chart, at what temperature can the cooling tower deliver water to the chilled-water plant?