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CEM 350 EXAM 1 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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CEM 350 EXAM 1 QUESTIONS ANDANSWERS WITH SOLUTIONS 2024
If the lighting load for a 50,000 sq ft building is estimated at 2 Watts/ sq ft, what will be the resulting
heat generated by lighting over a ten-hour day?
A. 341,000 Btuh
B. 100,000 Btuh
C. 341,000 Btu
D. 100,000 Btu - ANSWER A
If the lighting load for a 50,000 sq. ft. building is estimated at 2 Watt/ sq ft, the resulting heat generated
by lighting over a ten-hour day is 341,000 Btuh.
If the lighting load were increased, what would be the effect on other building systems?
A. The heat from the lightning will add to the air conditioning load. Increasing lighting load will decrease
the size of air conditioning equipment. Requirements for power distribution equipment will also be
decreased directly by increased lighting and indirectly by increased air conditioning. Heat from lights
might decrease requirements for building heating, but most engineers will not factor lighting into the
size of heating equipment since lights may not be on
B. If the lighting load were increased, we would need less tint on our windows. The power distribution
equipment can power the building just fine
C. If you increase the lighting load, the power distribution equi - ANSWER D
If the lighting load for a 50,000 sq ft building is estimated at 2 Watt/sq. Ft, the resulting heat generated
by lighting over a ten-hour day is 341,000 Btuh.
How much CO2 will be liberated to the atmosphere in a year's time due this lighting operation?
A. 840,000 lbs. Greater amounts would be generated if the lighting were operated greater than
continuously, or if the power generation were by gas or oil
B. 350,000 lbs. Greater amounts would be generated if the lighting were operated greater than
continuously, or if the power generation were by gas or oil
, C. 350,000 lbs. Lesser amounts would be generated if the lighting were operated less than continuously,
or if the power generation were by gas or oil
D. 840,000 lbs. Lesser amounts would be generated if the lighting were operated less than continuously,
or if the power generation were by gas or oil - ANSWER D
Sustainable design inherently produces buildings that exceed minimum requirements of codes and
standards.
A. True
B. False - ANSWER A
Will a developer use a higher or lower discount rate than a building owner? Why?
A. Developers' profit expectation is higher than that of a building owner as pointed out in class lecture
they're taking on more risk, so they will apply a lower discount rate in cash flow analysis
B. Developers ' profit expectation is lower than that of a building owner as pointed out in class lecture
they're taking on more risk, so they will apply a higher discount rate in cash flow analysis
C. Developers' profit expectation is higher than that of a building owner as pointed out in class lecture
they're taking on more risk, so they will apply a higher discount rate in cash flow analysis
D. Developers' profit expectation is lower than that of a building owner as pointed out in class lecture
they're taking on more risk, so they will apply a lower amount rate in cash flow analysis - ANSWER C
An energy conservation option has a first cost of $25,000. It requires $2,000 per year maintenance and
saves $5,000 per year in utilities. What is the simple payback period for the option?
A. 10 years
B. 8 years
C. 9 years
D. 7 years - ANSWER B
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