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NATE Core Exam Revision
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The NATE (North American Technician Excellence) Core Exam is the foundation for all NATE certifications and tests a technician's fundamental knowledge of HVACR systems. It is a 50-question, closed-book exam that covers safety, tools, basic construction, science, and electrical principles.  Here is a breakdown of the NATE Core Revision syllabus based on the Knowledge Areas of Technician Expertise (KATEs): 1. Safety Job Site Safety: OSHA standards, personal protective equipment (PPE), hazard recognition, and mitigation. Safe Procedures: Proper handling of refrigerants, lockout/tagout... Show more
NATE Core Exam Revision
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25 Questions

1. The ______ the wet bulb temperature of the incoming air in the cooling tower, the more efficient the air is in decreasing the temperature of the water being fed into the tower:

2. Flue gas temperatures at which the high-efficiency furnaces operate typically is:

3. Motor winding relay is an electromagnetic device for ________ the motor electrical circuit connected in series to the motor starting winding

4. A thermostatic expansion valve modulates to maintain suction _____:

5. 10 deg F rise in air temperature can:

6. A lower cfm is used during a heating cycle

7. At discharge line refrigerant will be in _______ from:

8. Curved boundary In Psychrometric chart indicates which of the following:

9. If the surrounding air is colder than the skin temperature, the body gains heat:

10. The total resistance of the circuit ______ if the loads are added in series:

11. the total load of the air-conditioning equipment does not exceed ______ of the current rating of the branch circuit, provided the voltage rating is satisfied.

12. An ampere is a measurement of which of the following:

13. 100 watt = ______ Btu

14. In Psychrometric chart Y-axis indicates which of the following:

15. In Psychrometric chart curved boundary indicates which of the following:

16. Which of the following law states that the total pressure of a confined mixture of gases is the sum of pressures of each of the gases in the mixture:

17. The external equalizer is used to compensate for the pressure drop across the ________

18. A energy-efficient room air conditioner will have an Energy Efficient Ratio (EER) rating of _____ or higher:

19. As the condensing temperature increases, the capacity of the compressor:

20. 30,000 B.t.u.'s equals ______ ton:

21. As the number of passes in firetube boiler increases, its efficiency will _____ :

22. Shaded pole motors have _____ winding.

23. Dual voltage three phase motor has _____ number of terminals

24. Which of the following is also called as double pipe condenser:

25. If the proper (lower) gas velocity is not maintained in the refrigeration piping, which of the following will happen: