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NATE EXAM: CORE ESSENTIALS LATEST EXAM 2025|
NATE CORE ESSENTIALS ACTUAL EXAM| COMPLETE
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+
What is an accurate formula for Ohm's Law?
A. E= I/R
B. R= E/I
C. R= I/E
- I= R/E - Correct Answer - B. R= E/I
Which of the following causes objectionable sound in a duct system?
- Inadequate velocity
- Reduce static pressure
- Excessive velocity
- Reduce velocity pressure - Correct Answer - C. Excessive velocity
Using the diagram, what is component J94?
- It is a limited control for the primary control
- It is the disconnect switch for the supply power
- It is a limit control for the burner motor
- It is a multi-pin connector - Correct Answer - D. It is a multi-pin
connector 1 / 4
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Lever type tubing benders are best used for:
- soft drawn copper tubing
- hard drawn type "M" copper tubing
- all sizes of copper tubing
- hard drawn type "K" copper tubing - Correct Answer - A. soft drawn
copper tubing
How much heat is created by one kilowatt at 240V three phase?
- 1000 Btu
- 2400 Btu
- 3413 Btu
- 4152 Btu - Correct Answer - C. 3413 Btu
Construction fall protection is required whenever working over what minimum height?
- 4 ft
- 6 ft
- 8 ft
- 10 ft - Correct Answer - B. 6 ft
What type of heat causes a change in a thermometer reading?
- Latent
- Specific
- Sensible 2 / 4
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- Enthalpy - Correct Answer - C. Sensible
What can cause outdoor unit sound to be objectionable to the customer?
- Adding compressor insulation
- Equipment location
- Equipment footprint
- Adding a start kit - Correct Answer - B. Equipment location
What is the effect of electrons flowing through a coil wire?
- Increase voltage
- Decreased resistance
- Increased magnetic field
- Decreased amp draw - Correct Answer - C. Increased magnetic field
Using the above image of a digital multimeter dial, what is measured when it is set to 12?
- DC Voltage
- Ohms
- Amps
- AC Voltage - Correct Answer - B. Ohms
A tool specifically made to thread a hole in metal is a:
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- tap
- bolt
- punch - Correct Answer - B. tap
What type of residential construction uses flooring over a crawlspace?
- Pier and beam
- Slab
- Board and batten
- Open beam - Correct Answer - A. Pier and beam
A fire extinguisher must have what Class rating to extinguish an electrical fire?
- Class A
- Class B
- Class C
- Class D - Correct Answer - C. Class C
Latent heat is the heat added or removed when a substance:
- is superheated
- changes its temperature
- changes its physical state
- is subcooled - Correct Answer - C. changes its physical state
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