1 Correct Mark 75 out of 75 Flag question Question text Are the following statements true or false?
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Partially correct Mark 0.45 out of 0.50 Flag question Question text Watch the video about EVAPORATIVE COOLERS below and complete the following five sentences with NO MORE THAN THREE WORDS. Play Video 1. Water from outside water valve is collected in the ................... Answer: Question 9 Correct Mark 0.50 out of 0.50 Flag question Question text 2. Water is forced through a hose to a …………………. by a recirculating pump. Answer: Question 10 Correct Mark 0.50 out of 0.50 Flag question Question text 3. A purge pump is used to wash away …………… in the water. Answer: Question 11 Correct Mark 0.50 out of 0.50 Flag question Question text 4. The hot and dry outside air is drawn through the …………… by a motor. Answer: Question 12 Correct Mark 0.50 out of 0.50 Flag question Question text 5. The hot air inside the home is forced out through open ………………. Answer: Information Flag question Information text Watch the third part of the lecture and take careful notes of the content. Then use your notes to answer the questions that follow. Question 13 Correct Mark 0.50 out of 0.50 Flag question Question text Use your notes to complete the sentence. The vapor compression refrigeration system consists of a refrigerant, two ……………, a compressor, a metering device, and the tubing. Answer: Question 14 Correct Mark 0.50 out of 0.50 Flag question Question text Use your notes to complete the sentence. The tubing …………all components and prevents the refrigerant from leaking out of the system. Answer: Question 15 Correct Mark 0.25 out of 0.25 Flag question Question text What is the core principle that makes refrigerators work? Select one: A. Turning liquids to solids decreases temperature. B. Evaporating liquids absorb heat. C. Raising pressure lowers temperature. Feedback Your answer is correct. Question 16 Correct Mark 0.50 out of 0.50 Flag question Question text Which statement is NOT true about refrigerants? Select one: A. They have much lower boiling points compared to water. B. They can absorb heat much faster than water. C. They present significantly harmful environmental impacts. D. They can transform back and forth between liquid and gaseous state. Feedback Your answer is correct. Question 17 Correct Mark 0.25 out of 0.25 Flag question Question text Why don't refrigerators use pure ammonia as a refrigerant? Select one: A. high boiling point B. high toxicity C. high GWP value Feedback Your answer is correct. Question 18 Correct Mark 0.50 out of 0.50 Flag question Question text Choose the correct statement about the capillary tube. Select one: A. It’s long and occupies much space in the system. B. It does not respond to differences in cooling demand. C. It’s equipped in high efficiency refrigeration systems. D. It has a small but adjustable internal diameter. Feedback Your answer is correct. Question 19 Correct Mark 0.75 out of 0.75 Flag question Question text Are the following statements true or false?
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