최신 Energy Management CEM 무료샘플문제:
1. A steam trap with a 6-mm orifice in an 0.8-MPa steam system has failed open. The steam system is pressurized8.760 hours/yr. The steam cost is $15.00 /GJ. Using thetable below, what is the annualcost of the vented steam through the failed steam trap? ignore any condensate return issues.
[The question from the previous image, which was about calculating the annual cost of heat loss through a wall, but had a discrepancy between the calculated cost and the provided answer choices]
A) $5,000/yr
B) $10,000/yr
C) $40,000/yr
D) $30,000/yr
E) $20,000/yr
2. A facility has the thermal cooling load profile shown in the table below. The utility rate traffic has an no-peak time-of-use period that begins at 10:00 a.m ends at 7:00 p.m. What chiller capacity (output) is required for a load-leveling operating strategy?
[Question from the previous image, which was about chiller capacity for load leveling, but the table was missing]
A) 5.0 GJ/h
B) 7.0 GJ/h
C) 8.0 GJ/h
D) 4.0 GJ/h
3. What is a common method to reduce the impact of voltage imbalance?
A) Rebalance single-phase loads
B) Install harmonic filters
C) Reverse phase connections on three-phase motors
D) Install capacitors to improve power factor on three-phase loads
4. If outside air has a temperature of 25°C dry bulb and 15°C wet bulb, what is the enthalpy of the air?
A) 62 kJ/kg
B) 42 kJ/kg
C) 32 kJ/kg
D) 52 kJ/kg
5. If the initial design process includes group relamping, how can this reduce the number of lamps required to illuminate a space?
A) Group relamping requires using larger Wattage lamps, which means fewer lamps are required to illuminate a space
B) Group relamping cannot reduce the number of lamps required to illuminate a space
C) Group relamping reduces factors that contribute to light loss, which means fewer lamps are required to illuminate a space
D) Group relamping improves the room cavity ratio, which means fewer lamps are required to illuminate a space
E) Group relamping reduces the overall amount of lamp breakages, which means fewer lamps are required to illuminate a space.
질문과 대답:
| 질문 # 1 정답: D | 질문 # 2 정답: C | 질문 # 3 정답: A | 질문 # 4 정답: B | 질문 # 5 정답: C |
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