QUESTION NO: 1
An air conditioning unit cools make-up air from 25°C (dry bulb temperature) and 50% relative humidity down to 13°C. What type of heat has been removed from the air?
An air conditioning unit cools make-up air from 25°C (dry bulb temperature) and 50% relative humidity down to 13°C. What type of heat has been removed from the air?
Correct Answer: A
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QUESTION NO: 2
Which of the following steam turbines will have a single exit steam outlet at an intermediate steam pressure (higher than atmospheric pressure) that is useable in other industrial processes?
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Which of the following steam turbines will have a single exit steam outlet at an intermediate steam pressure (higher than atmospheric pressure) that is useable in other industrial processes?
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Correct Answer: C
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QUESTION NO: 3
Which motor parameter is the most difficult to measure with precision?
Which motor parameter is the most difficult to measure with precision?
Correct Answer: E
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QUESTION NO: 4
In a chilled water thermal energy storage system, chilled water is stored at 4°C and used for supply water.
Chilled water return is 14°C. Calculate the storage capacity required to hold 50 GJ of thermal cooling. (The specific heat of water (C) is 4.2 kJ/kg-°C. Assume no system losses.)
In a chilled water thermal energy storage system, chilled water is stored at 4°C and used for supply water.
Chilled water return is 14°C. Calculate the storage capacity required to hold 50 GJ of thermal cooling. (The specific heat of water (C) is 4.2 kJ/kg-°C. Assume no system losses.)
Correct Answer: D
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QUESTION NO: 5
How much energy (kJ) is required to heat 2 kg of water from 25°C to 2 kg of water at 100°C? (The specific heat of water (C) is 4.2 kJ/kg-°C. Assume no system losses.)
How much energy (kJ) is required to heat 2 kg of water from 25°C to 2 kg of water at 100°C? (The specific heat of water (C) is 4.2 kJ/kg-°C. Assume no system losses.)
Correct Answer: B
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QUESTION NO: 6
Why do electric utility companies transmit power at high voltages?
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Why do electric utility companies transmit power at high voltages?
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Correct Answer: C
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