Air Conditioning and Heat Pumps Inspection Section#1 Air Conditioning Quiz#5

• Question 1

  Needs Grading

  	Explain why evaporative coolers need an air gap.
  	Selected Answer: It is to prevent a cross connection and contaminated water from the reservoir flowing back into the potable water.  Correct Answer:   To prevent a cross connection, and prevent the reservoir water flowing back into the potable supply. Response Feedback: [None Given]

• Question 2

  Needs Grading

  	Give some examples of good locations and poor locations for thermostats.
  	Selected Answer: Good location 1. Central in the house Poor location 1. Near exterior door 2. Above heating/cooling register 3. In direct sunlight Correct Answer: 1. Good location is near the center of the house, away from direct sunlight, fireplaces, light bulbs, etc. 2. Poor locations are in kitchens, near ductwork, ovens, etc., against chimneys, in direct sunlight, above televisions, or near doors and windows. Response Feedback: [None Given]

• Question 3

  Needs Grading

  	How long do air conditioning compressors typically last in your area?
  	Selected Answer: 15 to 20 years Correct Answer:   1. 8 to 10 years - southern U.S.A. 2. 10 to 15 years - moderate climates 3. 15 to 20 years - northern climates Response Feedback: [None Given]

• Question 4

  Needs Grading

  	List seven common problems with thermostats.
  	Selected Answer: 1. Inoperative 2. Poor location 3. Not level 4. Loose 5. Dirty 6. Damaged 7. Poor adjustment/calibration Correct Answer:   1. Inoperative 2. Poor location 3. Not level 4. Loose 5. Dirty 6. Damaged 7. Poor adjustment/calibration Response Feedback: [None Given]

• Question 5

  Needs Grading

  	List three types of evaporative coolers.
  	Selected Answer: 1. Rotary cooler 2. Spray cooler 3. Drip cooler Correct Answer:   Rotary, spray, and drip. Response Feedback: [None Given]

• Question 6

  Needs Grading

  	List two common whole-house fan problems.
  	Selected Answer: 1. Inoperative, noisy or excess vibration 2. Inadequate attic venting Correct Answer:   1. Inoperative, noisy, or excess vibration 2. Inadequate attic venting Response Feedback: [None Given]

• Question 7

  Needs Grading

  	Name two ways in which a whole-house fan might be activated.
  	Selected Answer: 1. Manually 2. Automatically by thermostat Correct Answer:   With a wall switch, or a thermostat. Response Feedback: [None Given]

• Question 8

  Needs Grading

  	What is another name for an evaporative cooler?
  	Selected Answer: swamp coolers Correct Answer:   Swamp cooler Response Feedback: [None Given]

• Question 9

  Needs Grading

  	What is the typical warranty period on an air-conditioning compressor?
  	Selected Answer: 5 years Correct Answer:   Five years typically. Response Feedback: [None Given]

• Question 10

  Needs Grading

  	When compressors in split systems fail, can they be replaced or does the whole air conditioning system have to be replaced?
  	Selected Answer: It can be replaced Correct Answer:   Can replace the compressor only. Response Feedback: [None Given]

• Question 11

  Needs Grading

  	Where are whole-house fans typically located?
  	Selected Answer: Often in the ceiling at the top level of the house Correct Answer:   In the ceiling on the top floor or in the attic. Response Feedback: [None Given]

• Question 12

  Needs Grading

  	Why does it matter if a mechanical thermostat is not level?
  	Selected Answer: it can't work properly Correct Answer:   The set temperature of the thermostat will not be an accurate reflection of the room temperature, since the mercury bulb will not be level. Response Feedback: [None Given]

• Question 13

  0 out of 0 points

  	Evaporative coolers recirculate the house air across the cooler.
  	Selected Answer:  False Answers: True  False Response Feedback: Well done!!