quiz lesson 5

# Frost build up in the freezer can

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Unformatted text preview: orrect C ) 28174350 Btus 1 gal of water weighs 8.3 lbs Annual Energy requirement = 155 x 8.3 x (123- 63) x 365 = 28174350 BTUs You can save up to 1/3 of your dishwasher operating costs by allowing the dishes to air dry rather than go through the dry cycle. Correct A ) TRUE You can save up to 1/3 of your dishwasher operating costs by allowing the dishes to air dry rather than go through the dry cycle. An old refrigerator consumes 175 W of power. Assuming that the refrigerator operates for 19 hours everyday, what is the annual operating cost of the refrigerator, if the cost of electricity is \$0.08 per kWh? Correct B ) 97.09 \$ Annual operating cost = 175 / 1000 * 19 * 0.08 * 365 = \$97.09. A water heater heats 148 gal of water from 65oF to 126oF every day. What is the annual energy requirement of the water heater? Correct C ) 27350326 Btus Annual energy requirement = 148 * (126 - 65) * 8.3 * 365 = 27350326 BTUs. Note: 1 gal of water weighs 8.3 lbs. The Energy Guide labels must specify the _____ of the particular model. Correct A ) Estimated annual energy consumption The Energy Guide labels must specify the following information: 1. The capacity of the particular model (for refrigerators, freezers, dishwashers, clothes washers, and water heaters); 2. The estimated annual energy consumption of the model (for air conditioners, heat pumps, furnaces, boilers, and pool heaters); 3. The range of estimated annual energy consumption, or energy efficiency ratings, of comparable appliances. Refrigerators are heat _____. Correct C ) Movers Refrigerators are heat movers What does the acronym DOE stand for? Correct A ) Department Of Energy DOE stands for Department Of Energy. Which of the following appliances uses modified energy factor to express energy efficiency? Correct B ) Clothes washer Clothes washer uses modified energy factor to express energy efficiency In a typical residential or commercial lighting installation, _____ energy is wasted by obsolete equipment, inadequate maintenance, or inefficient use. Correct A ) 50 % or more In a typical...
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## This note was uploaded on 09/24/2013 for the course EGEE 102 taught by Professor Pisupati,sarmave during the Spring '07 term at Penn State.

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