Q9-LR-2

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Pennsylvania State University *

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Course

102

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Mechanical Engineering

Date

Jan 9, 2024

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pdf

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5

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4/10/23, 1:10 PM Lesson 9 - Quiz: EGEE 102 (SP23): Energy Conservation for Environmental Protection https://psu.instructure.com/courses/2224925/quizzes/4674353 1/5 Lesson 9 - Quiz Due Apr 15 at 11:59pm Points 25 Questions 12 Available Apr 10 at 12am - Apr 15 at 11:59pm Time Limit 20 Minutes Allowed Attempts 2 Instructions Attempt History Attempt Time Score KEPT Attempt 2 6 minutes 25 out of 25 LATEST Attempt 2 6 minutes 25 out of 25 Attempt 1 10 minutes 23 out of 25 Correct answers will be available on Apr 16 at 12am. Score for this attempt: 25 out of 25 Submitted Apr 10 at 1:10pm This attempt took 6 minutes. Remember that once you start the quiz, you cannot stop the timer. If you leave the quiz, the timer keeps running. You must finish in 20 minutes. Feedback for this Quiz (along with your responses and the correct answers) will be made available after the deadline for this Quiz. 2 / 2 pts Question 1 A home that is dry during the winter must be kept warmer to be comfortable than one with a higher humidity level. True False
4/10/23, 1:10 PM Lesson 9 - Quiz: EGEE 102 (SP23): Energy Conservation for Environmental Protection https://psu.instructure.com/courses/2224925/quizzes/4674353 2/5 2 / 2 pts Question 2 When warm outside air is cooled by an air conditioner, its relative humidity increases decreases depends on the temperature depends on the air conditioner 2 / 2 pts Question 3 Size of air conditioner doesn’t depend on how much shade is on your home's windows, walls and roofs. FALSE TRUE 2 / 2 pts Question 4 In a __________ air conditioner, the evaporator, condenser and compressor are all located in one cabinet. Packaged central Split-system central
4/10/23, 1:10 PM Lesson 9 - Quiz: EGEE 102 (SP23): Energy Conservation for Environmental Protection https://psu.instructure.com/courses/2224925/quizzes/4674353 3/5 Geothermal heat pump 2 / 2 pts Question 5 Most central air conditioning systems are “split” systems. True False 2 / 2 pts Question 6 Which term is used to describe the efficiency of air source heat pumps? AFUE EER EF HSPF 2 / 2 pts Question 7 In general, air conditioners are rated in tons. A ton of refrigeration transfers 6,000 BTUs/h
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4/10/23, 1:10 PM Lesson 9 - Quiz: EGEE 102 (SP23): Energy Conservation for Environmental Protection https://psu.instructure.com/courses/2224925/quizzes/4674353 4/5 12,000 BTUs/h 24,000 BTUs/h 100,000 BTUs/h 2 / 2 pts Question 8 __________ will increase the cooling load and force the air conditioner to work harder Dehumidifier Humidifier Reflective window coatings Insulated attic 2 / 2 pts Question 9 Heat is measured in BTU K F KWh
4/10/23, 1:10 PM Lesson 9 - Quiz: EGEE 102 (SP23): Energy Conservation for Environmental Protection https://psu.instructure.com/courses/2224925/quizzes/4674353 5/5 2 / 2 pts Question 10 Oversized air conditioners (and heat pumps) do not run long enough to dehumidify the air True False 2 / 2 pts Question 11 Floor insulation has little or no effect on Cooling Heating 3 / 3 pts Question 12 The office wants to replace the old 0.7 ton air conditioning system (EER=8). If the new air conditioning system operates at an EER of 13, the new system will reduce how many watts of electricity usage? Answer with two decimal places without a unit. 403.85 Quiz Score: 25 out of 25