MD HVAC MASTERS EXAM LATEST WITH ACTUAL
QUESTIONS AND CORRECT VERIFIED ANSWERS
ALREADY GRADED A+ 100% GUARANTEED PASS!
For mechanical draft system, exit terminal located adjacent to public walkways shall be no less
than ____________ feet above finish ground level. - (answers)7
A 2000 sq. ft. "Type II" dry-cleaning systems shall be provided with an exhaust no less than
__________ CFM's. - (answers)2000
A bathroom in a dwelling unit must be provided with a minimum intermittent exhaust of
__________. - (answers)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. - (answers)3 feet
A heater installed in a public garage must be installed a minimum distance of ____________
above the floor? - (answers)8 feet
______________ is a tube or pipe used to carry refrigerant gas from evaporator to the
compressor - (answers)Suction line
Commercial appliance exhaust outlets that terminate above roof shall have the discharge opening
located not less than ___________ inches above the roof surface. - (answers)40
A run winding in a compressor has _____________ resistance than the start winding. -
(answers)Less
A duct that has an operating temperature of 150 deg F shall be insulated to limit the exposed
surface temperature to ___________. - (answers)120 °F
, Hydronic pipe system should be cleaned with water and _____________ after installation. -
(answers)Trisodium Phosphate
Using a psychrometric chart in the Modern Refrigeration, what will the wet bulb be if the dry
bulb is 80 degrees and the humidity is 30%? - (answers)60 °F
Outside air exhaust and intake openings shall be located a minimum of ____________ feet from
lot lines or building on the same lot. - (answers)10
Down - pipe support material must not promote: - (answers)Galvanic action
Central HVAC systems shall have air filters installed in which of the following locations? -
(answers)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. - (answers)1 ½
A ventilation supply system shall deliver the required rate of supply air within an occupied space
minimum of ____________ above the floor. - (answers)3"
In a unit controlled by a thermostat the differential is the difference between ____________. -
(answers)Temperature at which the switch turns the burners on and the temperature at which the
switch turns the burners off
A ___________ is used to measure relative humidity by comparing wet/dry bulb temperatures. -
(answers)Sling Psychrometric
QUESTIONS AND CORRECT VERIFIED ANSWERS
ALREADY GRADED A+ 100% GUARANTEED PASS!
For mechanical draft system, exit terminal located adjacent to public walkways shall be no less
than ____________ feet above finish ground level. - (answers)7
A 2000 sq. ft. "Type II" dry-cleaning systems shall be provided with an exhaust no less than
__________ CFM's. - (answers)2000
A bathroom in a dwelling unit must be provided with a minimum intermittent exhaust of
__________. - (answers)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. - (answers)3 feet
A heater installed in a public garage must be installed a minimum distance of ____________
above the floor? - (answers)8 feet
______________ is a tube or pipe used to carry refrigerant gas from evaporator to the
compressor - (answers)Suction line
Commercial appliance exhaust outlets that terminate above roof shall have the discharge opening
located not less than ___________ inches above the roof surface. - (answers)40
A run winding in a compressor has _____________ resistance than the start winding. -
(answers)Less
A duct that has an operating temperature of 150 deg F shall be insulated to limit the exposed
surface temperature to ___________. - (answers)120 °F
, Hydronic pipe system should be cleaned with water and _____________ after installation. -
(answers)Trisodium Phosphate
Using a psychrometric chart in the Modern Refrigeration, what will the wet bulb be if the dry
bulb is 80 degrees and the humidity is 30%? - (answers)60 °F
Outside air exhaust and intake openings shall be located a minimum of ____________ feet from
lot lines or building on the same lot. - (answers)10
Down - pipe support material must not promote: - (answers)Galvanic action
Central HVAC systems shall have air filters installed in which of the following locations? -
(answers)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. - (answers)1 ½
A ventilation supply system shall deliver the required rate of supply air within an occupied space
minimum of ____________ above the floor. - (answers)3"
In a unit controlled by a thermostat the differential is the difference between ____________. -
(answers)Temperature at which the switch turns the burners on and the temperature at which the
switch turns the burners off
A ___________ is used to measure relative humidity by comparing wet/dry bulb temperatures. -
(answers)Sling Psychrometric
