ASCS Exam(question with 100% correct answers)2023 updated

ASCS Exam(question with 100% correct answers)2023 updatedHaving a regular HVAC filter replacement plan can help: A. Protect the system components B. Double the system's airflow C. Humidify the airflow D. Sanitize the system components - correct answer A. Protect the system components According to ACR, the NADCA Standard, properly performed HVAC system cleaning services should: A. Eliminate all contamination B. Restore the internal insulation to an "as new" condition C. Restore the evaporator coil to its original pressure drop D. Render the system visibly clean - correct answer C. Restore the evaporator coil to its original pressure drop Which of the following creates the greatest restriction of airflow? A. A dirty fan motor B. A dirty Plenum C. A dirty Coil D. A dirty return duct - correct answer C. A dirty coil According to ACR, The NADCA Standard, proper cleaning and maintenance of an HVAC system: A. Eliminates odors B. Adds to the life expectancy of a system C. Reduces noice pollution D. Adds to the value of the HVAC system - correct answer B. Adds to the life expectancy of a system During a commercial site survey, an ASCS should do which of the following to determine client expectations? A. Interview the client's employees B. Ask the client a series of specific questions prior to inspections C. Perform the inspection without interaction with the client D. Consult an Indoor Environment Professions (IEP) to determine IAQ - correct answer B. Ask the client a series of specific questions prior to inspections Dirt streaks around supply diffusers that are NOT cause by a dirty ventilation system are MOST likely cause by: A. Slow discharge velocities B. Elevated relative humidity C. Dirty room air at the diffuser D. Thermal stratification around the diffuser - correct answer C. Dirty room air at the diffuser According to ACR, The NADCA Standard, which of the following is the PRIMARY purpose of a written work plan? A. Minimizes potential for legal action against the contractor B. Allows a clear understanding of what work will be performed C. Ensures compliance with current Occupational Safety and Health Administration (OSHA) regulations D. Documents the complete list of materials to be used on the job site - correct answer B. Allows a clear understanding of what work will be performed A package unit contains which of the following components? A. Compressor, evaporator coil, condenser, supply fan, and filter B. Evaporator coil, VAV box, condenser, supply fan, exhaust fan, and filter C. Compressor, evaporator coil, condenser, supply fan, exhaust fan, and filter D. Compressor, evaporator coil, condenser, supply fan, thermostat, and filter - correct answer B. Evaporator coil, VAV box, condenser, supply fan, exhaust fan, and filter The most common types of fuel consumed in modern residential HVAC systems are: