HVAC Contractor prep 2026 exam with
comprehensive questions and well
elaborated correct answers graded A+
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, The International Mechanical Code considers a "flammable Vapor" to be concentration of flammable
constituents in the air which exceeds _____________ percent of its flammability limit. - correct ans:25%
During installation or service of electrical controls, a digital multimeter set to voltage must be connected
in what manner? - correct ans:In parallell
Unvented fuel-burning room heaters are NOT permitted in a Group ___________ occupancy? - correct
ans:A
According to the Code, smoke detectors shall be installed in return air system with a design capacity of
at least HOW MANY cubic feet per minute of air flow in the duct, plenum, filters, air connections, or
decontamination equipment and appliances? - correct ans:2,000 CFM
If a system is using 12" round steel duct, what would be the air velocity measurement expressed in feet
per minute (fpm) given that the air traveling through the duct is a velocity of 600 CFM? - correct ans:763
fpm
Given that an 80,000 Btu/h gas furnace will have the combustion air supplied from a mechanical air
supply system outdoor source, the combustion air in shall be at least _________ Cubic Feet per Minute
ventilation? - correct ans:28 cfpm
Texas Department of License and Regulation requires that a contractor give company contact
information update if there are any changes as soon as possible. This notification must be within how
many days? - correct ans:30 days
Where the drain pipes from more than one unit manifolded together for condensate drainage, the pipe
or tubing shall be sized according to the equipment capacity. What would be the minimum size if the
requirement was 65 tons of refrigerant? - correct ans:1-1/4 in
Where equipment replacements and repairs are required to be performed in an emergency situation,
the permit application shall be submitted within _________ to the department of inspection. - correct
ans:Next working day
comprehensive questions and well
elaborated correct answers graded A+
Professional Academic Assistance Services
Services Offered
Proctored Exam Assistance
Online Class Management (Full Course Support)
Exam Preparation & Study Materials
Assignments and Coursework Support
Essays and Research Papers
Discussion Posts and Replies
Contact Information
Email:
WhatsApp: 0705994759
, The International Mechanical Code considers a "flammable Vapor" to be concentration of flammable
constituents in the air which exceeds _____________ percent of its flammability limit. - correct ans:25%
During installation or service of electrical controls, a digital multimeter set to voltage must be connected
in what manner? - correct ans:In parallell
Unvented fuel-burning room heaters are NOT permitted in a Group ___________ occupancy? - correct
ans:A
According to the Code, smoke detectors shall be installed in return air system with a design capacity of
at least HOW MANY cubic feet per minute of air flow in the duct, plenum, filters, air connections, or
decontamination equipment and appliances? - correct ans:2,000 CFM
If a system is using 12" round steel duct, what would be the air velocity measurement expressed in feet
per minute (fpm) given that the air traveling through the duct is a velocity of 600 CFM? - correct ans:763
fpm
Given that an 80,000 Btu/h gas furnace will have the combustion air supplied from a mechanical air
supply system outdoor source, the combustion air in shall be at least _________ Cubic Feet per Minute
ventilation? - correct ans:28 cfpm
Texas Department of License and Regulation requires that a contractor give company contact
information update if there are any changes as soon as possible. This notification must be within how
many days? - correct ans:30 days
Where the drain pipes from more than one unit manifolded together for condensate drainage, the pipe
or tubing shall be sized according to the equipment capacity. What would be the minimum size if the
requirement was 65 tons of refrigerant? - correct ans:1-1/4 in
Where equipment replacements and repairs are required to be performed in an emergency situation,
the permit application shall be submitted within _________ to the department of inspection. - correct
ans:Next working day
