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100% Pass Perfect CEM - Reliable Certified Energy Manager (CEM) Braindumps QuestionsIt is very necessary for a lot of people to attach high importance to the CEM exam. It is also known to us that passing the exam is not an easy thing for many people, so a good study method is very important for a lot of people, in addition, a suitable study tool is equally important, because the good and suitable CEM reference guide can help people pass the exam in a relaxed state. We are glad to introduce the CEM Certification Dumps from our company to you. We believe our study materials will be very useful and helpful for all people who are going to prepare for the CEM exam. There are a lot of excellent experts and professors in our company. In the past years, these experts and professors have tried their best to design the CEM exam questions for all customers. AEE Certified Energy Manager (CEM) Sample Questions (Q136-Q141):NEW QUESTION # 136
A 100-kW electrical load has a power factor of 75%. What capacitance, in KVAR, will improve the power factor to 95%?
A. 25.3 kVAR
B. 15.7 kVAR
C. 55.3 kVAR
D. 33.1 kVAR
E. 45.2 kVAR
Answer: A
NEW QUESTION # 137
Natural gas costs $4.80/GJ. How much does it cost to heat 500 liters of water from 18¡ãC to 50¡ãC using a natural gas water heater with an efficiency of 85%? [The efficiency and fuel price are both based on HHV.
The specific heat of water (C) is 4.2 kJ/kg-¡ãC.]
A. $1.44
B. $1.25
C. $0.38
D. $0.76
E. $0.25
Answer: D
Explanation:
To calculate the cost of heating water using natural gas:
Step 1: Compute Energy Required to Heat the Water
Given:
* Mass of water= 500 L = 500 kg
* Temperature rise (#T)= 50¡ãC - 18¡ãC = 32¡ãC
* Specific heat of water (Cp)= 4.2 kJ/kg-¡ãC
Energy Required (Q)=m¡ÁCp¡Á#T
=500¡Á4.2¡Á32
=67,200 kJ=67.2 MJ
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NEW QUESTION # 138
A cooling tower delivers water to a chilled-water plant at 21¡ãC. The outside ambient air conditions are 19¡ãC dry bulb, 50% relative humidity. Using the psychrometric chart, what is the approach temperature of the cooling tower outlet water temperature to the ambient air wet-bulb temperature?
SELECT THE CORRECT ANSWER
A. 6¡ãC
B. 4¡ãC
C. 8¡ãC
D. 10¡ãC
Answer: C
NEW QUESTION # 139
Which of the following is NOT included in commissioning documentation?
A. Equipment operations and maintenance manuals
B. Original facility and equipment design intent
C. Equipment control sequence documentation
D. As-built drawings
E. Financing payment structure reports
Answer: E
Explanation:
Commissioning documentation, per AEE CEM and ASHRAE Guideline 0, focuses on ensuring systems are designed, installed, operated, and maintained as intended.
Included commissioning documentation typically consists of:
* Original facility and equipment design intent (OPR/BOD)
* As-built drawings
* Equipment control sequence documentation
* Operations & Maintenance (O&M) manuals
Financing payment structure reports are related to project finance or performance contracting, not commissioning.
NEW QUESTION # 140
What is the Energy Use index (EUl) for a 4,000 m2 building that uses the following amountsof energy each year?
A. 403,311 kJ/m²-yr
B. 855,250 kJ/m²-yr
C. 3,220,800 kg/m²-yr
D. 1,612,000 kJ/m²-yr
E. 625,600 kJ/m²-yr
Answer: E
Explanation:
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NEW QUESTION # 141
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