Home Health Quiz Take the following quiz to test your knowledge of home energy, safety, and preventive maintenance facts? 1. How often should a water heater be drained for optimal energy, safety, and preventive maintenance facts? It's not necessary to drain a water heater At least twice a year Every Month When it makes crackling sounds 2. When should smoke detectors be replaced? When they look old Every 10 years Never if they pass a test When a house is sold 3. Of the appliances listed below, which one uses the most energy? Clothes Dryer Refrigerator Dishwasher Television 4. What is an expected replacement cost of a water heater? $200 $35 $750 $2,200 5. How often should batteries be replaced in smoke alarms?(Required) Monthly Twice a Year Annually Only when they chirp 6. In fatal residential fires with smoke detectors present, how often did smoke detectors fail to operate?(Required) 10% 21% 33% 61% 7. How many residential fires are attributed each year to the clothes dryer?(Required) 5,000 8,600 15,600 48,500 8. What is the leading factor contributing to clothes dryer fires?(Required) Mechanical Failure Failure to clean Arson Electrical 9. Radon is concern for which areas of the United States?(Required) East Coast Northeast states and Western PA The coal regions of the U.S. All states in the U.S. 10. Carbon Monoxide Detectors should be present in?(Required) Homes with one or more sources of combustion Homes with a fireplaces All Homes CO detectors are not useful CAPTCHA