Home
Practice
Exam Simulator
Study Plan
Flash Card
FAQ
Blog
The Montreal Protocol treaty has been amended to ban CFC production after _____ in the developed countries:
Explore more HVAC questions
Visit our
website
for other HVAC topics now!
Related questions
An application for a permit for any proposed work shall be deemed to have been abandoned ______ days after the date of filing.
A level service space in front of an appliance mounted in an attic shall not be less than __________.
In Psychrometric chart specific volume is indicated by which of the following:
The greater the wet bulb or dew point depression, ______ will be Relative humidity:
The average body temperature is:
A run winding in a compressor has _______ resistance than the start winding.
What is the required outdoor air ventalation rate for the bathrooms in motels?
All hoses exceeding _________ inside diameter shall have a safety device at the source of supply or branch line to reduce pressure in case of hose failure.
Equipment and appliances installed at grade level shall be supported on a level concrete slab or other approved material extending not less than _________ inches above adjoining grade.
A hygrometer is described as an instrument used to measure which of the following:
Which of the following affects the comfort of the human body
Psychrometry is the science and practice of air mixtures and their controls:
Convection is heat transfer that takes place in which of the following:
Ozone in the Earth’s stratosphere is created by UV light striking ____ molecule
I have control circuits that total .8 amps. The control secondary voltage is 120 volts. What is th minimum wattage of the transformer needed for this application?
The internal diameter of 2 inch type L copper is __________.
If you install a 20 mfd capacitor and a 40 mfd capacitor in parallel, you recieve a total capacitance of ___________.
The maximum horizontal support spacing for pex piping shall be a minimum of ________ inches?
In summer when the room is air conditioned, vapor pressure is _____ on the outside than inside
X-axis of psycrometric charts contains which of the following:
Which of the following represents ozone gas molecule:
A ______ is an accurate instrument for measuring pressure
Lifelines shall be secured above the point of operation to an ancorage or structual member capable of supporting a minimum dead weight of ________ pounds.
The ozone layer is mainly found at _____ above the surface of the earth
The lowest portion of a floor furnace shall not have less than a ________ inch clearance from grade.
Higher the dew point, _____ will be the water content of air:
The surface temperature of the average adults skin is:
Which of the following areas can fuel fired appliances not draw combustion air from?
Humidity ratio of the air is not affected by a temperature change unless it drops below the saturation temperature:
