What regulates the draft through the heat exchanger and prevents downdrafts from blowing into the heat exchanger on natural-draft gas furnaces?
A) The induced draft blower B) The barometric damper
C) The draft regulator D) The draft diverter
D
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While discussing parts retailers, Technician A says that chain stores usually deal in faster moving items such as alternators, starters, tools, and car accessories. Technician B says that they often do not have as large an inventory of diverse parts as a jobber store. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
A fast-running saw with an appropriate blade is needed to cut metal
Indicate whether the statement is true or false.
The 2009 IECC requires a minimum of ____ in each house.
A. one clock setback thermostat B. two clock setback thermostats C. one standard thermostat D. two standard thermostats
The stringer, or stair jack, is the support for the treads.
Answer the following statement true (T) or false (F)