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06 Apr 2020, 12:52
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Because the process of freezing food consumes energy, many people keep their electric freezers halfempty, using them only to store commercially frozen foods. Yet freezers that are half-empty often consume more energy than they would if they were kept fully stocked.
Which of the following, if true, contributes most to an explanation of the apparent discrepancy described above?
(A) A given volume of air in a freezer requires much more energy to be maintained at a temperature below freezing than does an identical volume of frozen food.
(B) The more often a freezer's door is opened, the more energy is required to maintain that freezer's normal temperature.
(C) When unfrozen foods are placed in a freezer, the average temperature of a given volume of air inside that freezer rises temporarily.
(D) A person who normally maintains a half-empty freezer can cut energy costs considerably by using a freezer that is 50 percent smaller.
(E) An electric freezer can operate efficiently only if chilled air is free to circulate within the freezing compartment.
Which of the following, if true, contributes most to an explanation of the apparent discrepancy described above?
(A) A given volume of air in a freezer requires much more energy to be maintained at a temperature below freezing than does an identical volume of frozen food.
(B) The more often a freezer's door is opened, the more energy is required to maintain that freezer's normal temperature.
(C) When unfrozen foods are placed in a freezer, the average temperature of a given volume of air inside that freezer rises temporarily.
(D) A person who normally maintains a half-empty freezer can cut energy costs considerably by using a freezer that is 50 percent smaller.
(E) An electric freezer can operate efficiently only if chilled air is free to circulate within the freezing compartment.
08 Apr 2020, 07:07
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Which of the following, if true, contributes most to an explanation of the apparent discrepancy described above?
(A) A given volume of air in a freezer requires much more energy to be maintained at a temperature below freezing than does an identical volume of frozen food.
---> This choice only talks about more energy used when the freezer isn't used to its volume. (Correct answer)
(B) The more often a freezer's door is opened, the more energy is required to maintain that freezer's normal temperature.
---> Concern here isn't to maintain the same temperature
(C) When unfrozen foods are placed in a freezer, the average temperature of a given volume of air inside that freezer rises temporarily.
---> Out of scope - Talking about unfrozen foods
(D) A person who normally maintains a half-empty freezer can cut energy costs considerably by using a freezer that is 50 percent smaller.
---> We aren't talking about energy costs but the amount of energy used.
(E) An electric freezer can operate efficiently only if chilled air is free to circulate within the freezing compartment.
--->again it says how to use it efficiently
Please correct me if I got it wrong.
Thanks
(A) A given volume of air in a freezer requires much more energy to be maintained at a temperature below freezing than does an identical volume of frozen food.
---> This choice only talks about more energy used when the freezer isn't used to its volume. (Correct answer)
(B) The more often a freezer's door is opened, the more energy is required to maintain that freezer's normal temperature.
---> Concern here isn't to maintain the same temperature
(C) When unfrozen foods are placed in a freezer, the average temperature of a given volume of air inside that freezer rises temporarily.
---> Out of scope - Talking about unfrozen foods
(D) A person who normally maintains a half-empty freezer can cut energy costs considerably by using a freezer that is 50 percent smaller.
---> We aren't talking about energy costs but the amount of energy used.
(E) An electric freezer can operate efficiently only if chilled air is free to circulate within the freezing compartment.
--->again it says how to use it efficiently
Please correct me if I got it wrong.
Thanks
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