Exam Questions and CORRECT Answers
Which of the following appliances typically use the most energy in a home?
Refrigerator
Computer
Well Pump
TV - CORRECT ANSWER - Refrigerator
What type of lamp generally has the shortest life span and the lowest efficiency?
Fluorescent
Mercury vapor
Metal Halide
Incandescent - CORRECT ANSWER - Incandescent
Which of the following is important when considering what type of lighting to use in a space?
Color
Illumination
Room use
Efficacy
All of the above - CORRECT ANSWER - All of the above
When there are multiple refrigerators in a home, you only use the kWh/yr of the largest unit.
True or False - CORRECT ANSWER - False
,Which of the following is NOT an advantage of CFLs over incandescent bulbs?
Longer life span
More efficient
Initial cost
Versatility - CORRECT ANSWER - Initial cost
Which of these is a qualifying lighting location?
pantry
unconditioned basement
garage
attic - CORRECT ANSWER - garage
High-intensity discharge lamps save how much when they replace incandescent fixtures?
25%-45%
50%-60%
75%-90%
110%-120% - CORRECT ANSWER - 75%-90%
Which of the following is NOT a cause of energy waste from lighting?
Illumination levels too low
Careless control
Incorrect lamp size
System is antiquated - CORRECT ANSWER - Illumination levels too low
,When utilizing daylighting for indoor lighting, which of the following is NOT important to
consider?
Heat gain
Glare
Exterior wall color
Window glazing - CORRECT ANSWER - Exterior wall color
What percentage of energy used in dishwashing is consumed by the water heater?
20%-30%
40-%-50%
60%-70%
80%-90% - CORRECT ANSWER - 80%-90%
The MEF (modified energy factor) for clothes washers takes into account which of the following
that the EF (energy factor) did not?
Drying potential
Cycle losses
Water efficiency
ENERGY STAR Ratings - CORRECT ANSWER - Drying potential
Which of the following is NOT an example of a way or feature to reduce clothes dryer runtime?
Humidity sensors
Full loads
Line drying
, Ensuring a clean lent trap - CORRECT ANSWER - Full loads
Refrigerators with automatic defrost generally use less energy than manual defrost models.
True or False - CORRECT ANSWER - False
Which of the following is NOT a way to use less energy with regards to refrigerators and
freezers?
Use one large refrigerator instead of two small ones
Defrosting freezer when ¼ inch of frost builds up
Selecting a side by side freezer/refrigerator
Cleaning the coils once a year - CORRECT ANSWER - Selecting a side by side
freezer/refrigerator
Which of the following is NOT a way to reduce energy use in pools and spas?
Install a large pump to reduce run time
Keeping pools at a temperature of 78 degrees F or less
Installing gradual bends in pipes
Keep pool free of debris - CORRECT ANSWER - Install a large pump to reduce run time
The US represents about ___ % of the world's population and consumes about ___% of the
world's energy supplies
3, 20
5, 10
5, 25
8, 35 - CORRECT ANSWER - 5, 25