Why must an insulating glass unit (IGU) be fully sealed?
What will be an ideal response?
The air or gas filling within an IGU is required to be fully dry. The sealing of the unit prevents water vapor leaking
into the IGU, where it may condense and fog the unit. It also ensures that air or gas will not escape out of the unit.
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A 80,000-kernel bag of seed corn costs $245. How much do 13 bags of seed corn cost?
What will be an ideal response?
There should be a ____ test point at the inlet and outlet of any water heat exchanger, chiller, or condenser.
A. temperature B. pressure C. vapor D. moisture
When an electric current exists within a conducting wire, which of the following statements describes the condition of any accompanying electric field?
a. must be perpendicular to current flow. b. must be antiparallel (opposite direction) to current flow. c. must be zero. d. must be parallel to current flow.
What can be measured through the lighter (power accessory) plug?
A) AC ripple voltage B) DC charging voltage C) Charging amperage D) Both A and B