View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 281. What should an ASCS understand about particle size It determines building ownership It can affect contaminant behavior and filtration It controls refrigerant type It changes duct dimensions Correct Answer: 2. It can affect contaminant behavior and filtration Explanation: Particle size influences how contaminants […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 261. What is the purpose of an HVAC cleaning scope of work Set equipment retail prices Replace safety procedures Define included work and project requirements Determine building ownership Correct Answer: 3. Define included work and project requirements Explanation: A scope of work defines the […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 241. What does the ASCS Job Analysis determine Building construction costs Customer cleaning schedules Important knowledge and skills for the profession Equipment retail prices Correct Answer: 3. Important knowledge and skills for the profession Explanation: NADCA uses a formal Job Analysis to identify the […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 221. What is an open air plenum A sealed refrigerant chamber A filter housing A nonducted pathway used for airflow A condensate reservoir Correct Answer: 3. A nonducted pathway used for airflow Explanation: An open air plenum is an intended nonducted air pathway formed […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 201. What is an ASCS qualified to serve as on HVAC cleaning projects Building architect Project manager Refrigerant manufacturer Electrical inspector Correct Answer: 2. Project manager Explanation: NADCA describes an Air Systems Cleaning Specialist as a professional qualified to serve as a project manager […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 181. What percentage of the current ASCS exam covers Benefits of HVAC System Cleaning 8 percent 16 percent 12 percent 42 percent Correct Answer: 2. 16 percent Explanation: The current NADCA ASCS Candidate Guide assigns approximately 16 percent of the examination to Benefits of […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 161. What does IAQ mean Internal Air Quantity Indoor Air Quota Indoor Air Quality Integrated Air Quarter Correct Answer: 3. Indoor Air Quality Explanation: IAQ stands for Indoor Air Quality. It refers to the condition of air within and around occupied buildings as it […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 141. How often should a residential air handling unit normally be inspected for cleanliness Every four years Every three years Every two years Every year Correct Answer: 4. Every year Explanation: NADCA’s recommended cleanliness inspection schedule lists a one year interval for residential air […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 121. What does AFD mean in HVAC cleaning Air Flow Damper Air Filtration Device Air Fan Drive Automatic Filter Duct Correct Answer: 2. Air Filtration Device Explanation: AFD stands for Air Filtration Device. NADCA includes this acronym in the current ASCS Candidate Guide because […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 101. What should be done with damper positions before duct cleaning Remove all dampers Fully close every damper Mark their original positions Replace all damper motors Correct Answer: 3. Mark their original positions Explanation: Damper positions and other air directional mechanical devices should be […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 81. Which ASCS exam domain has the greatest weighting Mechanical systems HVAC inspections HVAC cleaning and restoration procedures Standards and guidelines Correct Answer: 3. HVAC cleaning and restoration procedures Explanation: HVAC cleaning and restoration procedures represent the largest portion of the ASCS examination content. […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 61. What is the minimum containment level for HVAC cleaning projects Level 3 Level 4 Level 1 No containment Correct Answer: 3. Level 1 Explanation: Level 1 containment is the minimum level of containment required for HVAC system component cleaning projects under NADCA guidance. […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 41. What should happen immediately after HVAC component cleaning Apply coating Restart the system Inspect the cleaned work Remove all filters Correct Answer: 3. Inspect the cleaned work Explanation: HVAC components should be inspected after cleaning so the technician can verify that the required […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 21. What must a service opening preserve in an HVAC system Building paint color Refrigerant temperature Structural thermal and functional integrity Outdoor humidity Correct Answer: 3. Structural thermal and functional integrity Explanation: A service opening created for HVAC assessment, cleaning, or restoration must not […]

View Full NADCA ASCS Exam Dumps and Practice Test Dumps. Question 1. What is the primary purpose of HVAC system cleaning Increase refrigerant pressure Remove accumulated contaminants Change building temperature Increase duct size Correct Answer: 2. Remove accumulated contaminants Explanation: HVAC system cleaning is primarily performed to remove accumulated particulate matter, debris, and other contaminants […]