MD HVAC MASTERS PRACTICE SOLUTION
2026 SOLVED
◉ A 2000 sq. ft. "Type II" dry-cleaning systems shall be provided
with an exhaust no less than __________ CFM's. Answer: 2000
◉ A bathroom in a dwelling unit must be provided with a minimum
intermittent exhaust of __________. Answer: 50 cfm
◉ A hot-water heating boiler that has a 5,000,000 BTU/HR input
shall have a minimum clearance of _____________ from the top of the
boiler to the ceiling. Answer: 3 feet
◉ A heater installed in a public garage must be installed a minimum
distance of ____________ above the floor? Answer: 8 feet
◉ Commercial appliance exhaust outlets that terminate above roof
shall have the discharge opening located not less than ___________
inches above the roof surface. Answer: 40
◉ A duct that has an operating temperature of 150 deg F shall be
insulated to limit the exposed surface temperature to ___________.
Answer: 120 F
, ◉ Outside air exhaust and intake openings shall be located a
minimum of _______ feet from lot lines or building on the same lot?
Answer: 10
◉ Central HVAC systems shall have air filters installed in which of
the following locations? Answer: Upstream from any exchanger coil
◉ An auxiliary drain pan used in secondary drain systems for an a/c
systems shall have a minimum depth of ________ inch. Answer: 1 1/2
◉ A ventilation supply system shall deliver the required rate of
supply air within an occupied space minimum of ____________ above
the floor. Answer: 3 inches
◉ A connector to a chimney flue shall be at least __________ the lowest
portion of the interior of the flue. Answer: 12 inches above
◉ The temperature for a fire damper actuating device shall not be
less than ___________ degrees. Answer: 160
◉ A boiler shall have an unobstructed passageway of ___________
around all sides. Answer: 18
2026 SOLVED
◉ A 2000 sq. ft. "Type II" dry-cleaning systems shall be provided
with an exhaust no less than __________ CFM's. Answer: 2000
◉ A bathroom in a dwelling unit must be provided with a minimum
intermittent exhaust of __________. Answer: 50 cfm
◉ A hot-water heating boiler that has a 5,000,000 BTU/HR input
shall have a minimum clearance of _____________ from the top of the
boiler to the ceiling. Answer: 3 feet
◉ A heater installed in a public garage must be installed a minimum
distance of ____________ above the floor? Answer: 8 feet
◉ Commercial appliance exhaust outlets that terminate above roof
shall have the discharge opening located not less than ___________
inches above the roof surface. Answer: 40
◉ A duct that has an operating temperature of 150 deg F shall be
insulated to limit the exposed surface temperature to ___________.
Answer: 120 F
, ◉ Outside air exhaust and intake openings shall be located a
minimum of _______ feet from lot lines or building on the same lot?
Answer: 10
◉ Central HVAC systems shall have air filters installed in which of
the following locations? Answer: Upstream from any exchanger coil
◉ An auxiliary drain pan used in secondary drain systems for an a/c
systems shall have a minimum depth of ________ inch. Answer: 1 1/2
◉ A ventilation supply system shall deliver the required rate of
supply air within an occupied space minimum of ____________ above
the floor. Answer: 3 inches
◉ A connector to a chimney flue shall be at least __________ the lowest
portion of the interior of the flue. Answer: 12 inches above
◉ The temperature for a fire damper actuating device shall not be
less than ___________ degrees. Answer: 160
◉ A boiler shall have an unobstructed passageway of ___________
around all sides. Answer: 18
