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Nate Core Questions With Complete Solutions
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Nate Core Questions With Complete Solutions
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Nate Core Questions With Complete Solutions1kwh of electric power is equivalent to ___ btu per hour.
A. 3142
B. 6412
C. 9412
D. 6812 ✔️Ans - A
Gas valves operate at ____ voltage.
A. 120v
B. 230v
C. 24v
D. 12v ✔️Ans - C
What will be the resistance in the circuit if the supply voltage is 30v and
current flowing through the circuit is 5A.
A. 3 ohms
B. 1/3 ohms
C. 1/6 ohms
D. 6 ohms ✔️Ans - D
Furnaces are placed into categories based upon.
A. Venting characteristics
B. Btuh capacity range
C. Total airflow in CFM
D. Gas valve type ✔️Ans - A
An oil separator is located in the____
A. Expansion line
B. Liquid line
C. Suction line
D. Discharge line ✔️Ans - D
, Propane and butane are ____ than air.
A. Same weight
B. Heavier
C. Lighter ✔️Ans - B
Current in a closed circuit is limited by which of the following?
A. Heat
B. Voltage
C. Temperature
D. Resistance ✔️Ans - D
_____ use two special helical rotors that introduce suction vapors then
compress them.
A. All options are correct
B. Scroll compressors
C. Reciprocating compressors
D. Screw compressors ✔️Ans - D
A high pressure steam boiler operates at a pressure greater than ____
A. 5 psig
B. 15 psig
C. 25 psig
D 20 psig ✔️Ans - B
____ is the heat that is absorbed or extracted when a substance changes its
state.
A. Enthalpy
B. Entropy
C. Latent heat
D. Specific heat ✔️Ans - C
Sight glass is present at _____ in the refrigeration cycle.
A. Liquid line
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