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Exam (elaborations)

Louisiana (New Orleans) Second Class Stationary Air Conditioning - 640-LA Contractor Exam | Verified Latest Questions and Correct Detailed Answers
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March 2026

2025/2026

A+
OVERVIEW DESCRIPTION: The 640-LA Second Class Stationary Air Conditioning exam is a critical licensing step for commercial HVAC contractors in Louisiana, mandated by the LSLBC for projects valued at $10,000 or more. Administered as an open-book test through PSI with a four-hour time limit, it requires a 70% passing score. The exam thoroughly assesses a candidate's competency across the full spectrum of the trade, including HVAC and refrigeration systems, air distribution, piping, ...
VerifiedSets
$45.99 More Info

Exam (elaborations)

Air Conditioning Certification Study Guide / Score 100% / 2025 New Version
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9

February 2026

2025/2026

A+
Pass your state or industry Air Conditioning Certification (e.g., EPA 608, NATE) exam with this comprehensive 2025 study guide. This resource covers core principles of refrigeration, system components, electrical circuits, charging and recovery procedures, diagnostics, and EPA regulations for handling refrigerants. It includes system diagrams, troubleshooting charts, practice exam questions, and study notes to ensure you are fully prepared to score 100% and work legally and safely on AC systems.
ThePlug
$14.49 More Info

Exam (elaborations)

AIR CONDITIONING FINAL EXAM 2026-2027 QUESTIONS AND ANSWERS GRADED A+
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January 2026

2025/2026

A+
AIR CONDITIONING FINAL EXAM QUESTIONS AND ANSWERS GRADED A+
LiamJones
$22.99 More Info

Exam (elaborations)

AIR CONDITIONING/ PRESSURIZATION/ VENTILATION ACTUAL 2026 QUESTIONS AND 100% CORRECT ANSWERS
Available in bundle

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46

January 2026

2025/2026

A+
Available in bundle
AIR CONDITIONING/ PRESSURIZATION/ VENTILATION ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Conditioned air is distributed to: A: Cockpit, cargo bays and cabin B: Cockpit, fwd and aft cabins C: Cockpit, avionics bay and cabin D: Cockpit, cabin and holds 1 and 2 only - Answer -B: Cockpit, fwd and aft cabins Hot air fault light illuminates on the air conditioning panel, A: The hot air press. reg. valve opens and the trim air valves close. B: The hot air press. reg. valve closes a...
mercylynneh
$12.99 More Info

Exam (elaborations)

RADON REVIEW QUIZ 6 (MITIGATION) ACTUAL 2026 QUESTIONS AND 100% CORRECT ANSWERS
Available in bundle

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23

January 2026

2025/2026

A+
Available in bundle
RADON REVIEW QUIZ 6 (MITIGATION) ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS A measurement of the differential pressure across a slab is carried out by a mitigator on a day characterized by gusts of wind. In comparison to measurements made on a calm day, the windy day pressure differential readings across the slab will: Select one: a. Remain constant b. Increase
mercylynneh
$12.99 More Info

Exam (elaborations)

HYDRONIC HEATING AND COOLING ACTUAL 2026 QUESTIONS AND 100% CORRECT ANSWERS
Available in bundle

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72

January 2026

2025/2026

A+
Available in bundle
HYDRONIC HEATING AND COOLING ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS What is the definition of human comfort relative to temperature? A. When you feel slightly warm. B. When your drink feels cool in your beach chair. C. When you feel slightly cool. D. When you feel neither warm nor cool - Answer -When you feel neither warm nor cool Which type of hydronic system
mercylynneh
$12.99 More Info

Exam (elaborations)

AIR CONDITIONING/ PRESSURIZATION/ VENTILATION ACTUAL 2026 QUESTIONS AND 100% CORRECT ANSWERS
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46

January 2026

2025/2026

A+
AIR CONDITIONING/ PRESSURIZATION/ VENTILATION ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Conditioned air is distributed to: A: Cockpit, cargo bays and cabin B: Cockpit, fwd and aft cabins C: Cockpit, avionics bay and cabin D: Cockpit, cabin and holds 1 and 2 only - Answer -B: Cockpit, fwd and aft cabins Hot air fault light illuminates on the air conditioning panel, A: The hot air press. reg. valve opens and the trim air valves close. B: The hot air press. reg. valve closes a...
AdelineJean
$12.99 More Info

Exam (elaborations)

HYDRONIC HEATING AND COOLING ACTUAL 2026 QUESTIONS AND 100% CORRECT ANSWERS
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72

January 2026

2025/2026

A+
HYDRONIC HEATING AND COOLING ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS What is the definition of human comfort relative to temperature? A. When you feel slightly warm. B. When your drink feels cool in your beach chair. C. When you feel slightly cool. D. When you feel neither warm nor cool - Answer -When you feel neithe
AdelineJean
$12.99 More Info

Exam (elaborations)

AIR CONDITIONING B PRACTICE EXAM 1 | QUESTIONS AND ANSWERS 2025/2026 WITH COMPLETE SOLUTION.
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24

December 2025

2025/2026

A+
AIR CONDITIONING B PRACTICE EXAM 1 | QUESTIONS AND ANSWERS 2025/2026 WITH COMPLETE SOLUTION.
EvaTee
$22.49 More Info