Home > NATE > Quizzes > NATE Exam: Core Essentials
NATE Exam: Core Essentials
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 24% Most missed: “Spring-type benders may be used on ____.”
The NATE Core Essentials exam is the mandatory foundational test for all North American Technician Excellence (NATE) certifications, validating entry-level knowledge in HVACR safety, tools, electricity, and science. It consists of 50 questions, with a 70% passing score required to proceed to specialty certifications.  Key Exam Details Format: 50 multiple-choice questions, proctored (in-person or online). Requirements: Passing this core exam is required before taking any of the specialty exams (e.g., Heat Pump, Gas Heating). Core Knowledge Areas (KATEs): Safety: Regulations, refrigerant... Show more
NATE Exam: Core Essentials
Time left 00:00
25 Questions

1. When using a ladder, you should always ____.
2. How does the power factor of an inductive motor affect efficiency?
3. Voltage is best described as the ____.
4. What is the advantage of using a tube cutter to cut copper pipe?
5. The latent heat of fusion is the amount of energy required to change 1 lb of a substance from the ____ phase to the ____ phase without changing its temperature.
6. During the cooling season, dampers on bypass humidifiers should be ____.
7. A coulomb is a charge of ____ electrons.
8. An anemometer uses a small fan blade to measure ____.
9. The total resistance of a series circuit is equal to the ____.
10. A flaring tool is used to ____.
11. If gauge pressure reads 30 psi, what is the corresponding absolute pressure?
12. How fast does air with a velocity pressure of 0.20 in. w.g. move through a round duct?
13. When you arrive at a service call and meet the customer, you should ____.
14. Which of the following best describes an asphyxiating atmosphere?
15. When a vapor is heated to a temperature higher than its saturation point, both the added heat and the temperature above saturation are called ____.
16. A swaging tool is used to ____.
17. The amount of heat (Btu) needed to raise the temperate of 1 lb of a substance 1°F is called the ____ heat of the substance.
18. What is one of the advantages of a glass-stem thermometer?
19. A standard refrigeration manifold uses what type of element to measure pressure?
20. What is the CFM requirements for an 1,800-ft2 house with 8-ft ceilings, if five air changes per hour are needed?
21. Weight per unit volume or mass per unit of volume is called ____.
22. An ampere is a measurement of ____.
23. The process of molecules escaping from the surface of a liquid is called ____.
24. Which of the following classifications of fire extinguishers should be used for electrical fires?
25. When should oxygen be used in a refrigeration system?