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NATE / ICE Free Practice Test Questions Answers 1
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Question 1 of 17
1. Question
1 points1 Watt = _____ Btu
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Question 2 of 17
2. Question
1 points_______ is the temperature at which oil starts to produce a waxy substance that may interfere with the refrigeration system:
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Question 3 of 17
3. Question
1 points_______ use two special helical rotors that introduce suction vapors then compress them:
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Question 4 of 17
4. Question
1 pointsWhen there is an increase in the heat load on the evaporator, the refrigerant will tend to evaporate at a _____ rate:
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Question 5 of 17
5. Question
1 pointsWhich of the following shall not be used near flammable material:
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Question 6 of 17
6. Question
1 pointsThe ________ of the manifold gauge set is used to charge, evacuate, add oil and recover refrigerant from a refrigeration and air conditioning system:
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Question 7 of 17
7. Question
1 pointsHigher the ambient temperatures, ____ will be the evacuation time of the refrigerants from the system:
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Question 8 of 17
8. Question
1 pointsSight glass is present at _____ in the refrigeration cycle:
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Question 9 of 17
9. Question
1 pointsAn oil separator is located in the _____:
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Question 10 of 17
10. Question
1 points______ is the heat that is absorbed or extracted when a substance changes its state:
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Question 11 of 17
11. Question
1 pointsCurrent in a closed circuit is limited by which of the following:
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Question 12 of 17
12. Question
1 pointsWhat will be the resistance in the circuit if the supply voltage is 30V and current flowing through the circuit is 5A:
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Question 13 of 17
13. Question
1 pointsPropane and Butane are _______ than air:
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Question 14 of 17
14. Question
1 pointsGas valves operate at _____ voltage:
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Question 15 of 17
15. Question
1 pointsFurnaces are placed into categories based upon:
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Question 16 of 17
16. Question
1 pointsA high pressure steam boiler operates at a pressure greater than ______ :
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Question 17 of 17
17. Question
1 points1 kWh of electric power is equivalent to ______ Btu per hour:
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