what is the recommended domestic hot water temp at the fixture? - correct
answer ✔120 degrees F
what is the simple payback calculation given the following information?
material cost 100, labor cost 400, annual savings 125 - correct answer ✔4
years
when a customer request that you do something that is prohibited by your
company's policies, what is the correct response? - correct answer ✔inform
the customer that your company policy prohibits complying with their request.
upon entering a mechanical room the following conditions are observed:
full gas container and
soiled rags near the furnace
what is the appropriate next step? - correct answer ✔make a
recommendation to the customer
what is required on the job site when latex caulk is present? - correct answer
✔material safety data sheet
workplace safety standards are set by which organization? - correct answer
✔OSHA
, what is sunlight through a window am example of? - correct answer
✔radiation
what must be evaluated when air sealing has been completed? - correct
answer ✔the need for mechanical ventilation
what is a common cause of noise in ducts? - correct answer ✔undersized
ducts
which of the following is the most likely cause of overheating of one room of a
home in the summer? - correct answer ✔large west facing window area
while in the attic, you observe a large hole and can see through it into the
basement. what action should you take? - correct answer ✔air seal both the
top and bottom
what is the proper method to determine envelope leakage of a duplex? -
correct answer ✔conduct blower door tests simultaneously on both units and
add the
CFM50's
what can pressure differential measurements between conditioned and
unconditioned spaces be used for? - correct answer ✔Prioritize air sealing
and insulation measures
what component of a wood framed, double pane window has the largest heat
transfer? - correct answer ✔metal edge spacer