A heat recovery ventilation system saves energy by
A) exchanging heat between the supply and exhaust air streams
B) pre-heating the ventilation supply air with electric heat strips
C) pre-heating the ventilation exhaust air with electric heat strips
D) decreasing the size of the indoor air conditioning system blower
A
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Most analog addressable systems operate on a _____.
a. one-conductor circuit b. two-conductor circuit c. three-conductor circuit d. four-conductor circuit
Answer the following statement(s) true (T) or false (F)
1. In the accompanying figure, the current and voltage are out of phase, with the current leading the voltage.
2. A vector is a line representing quantity or magnitude.
3. Apparent power is expressed in watts.
4. If a pure capacitive circuit is connected to a DC source, the power factor is 0.
What type of reaction is occurring in the stirred reactor?
a. exothermic b. endothermic c. combustion d. replacement e. neutralization
"Do" portion of the PDCA process may include: process evaluation, provide technician training, and ___________.
A. monitor the change B. avoid a customer C. take a vacation D. get fired