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

Trades & Technology

You might also like to view...

Most analog addressable systems operate on a _____.

a. one-conductor circuit b. two-conductor circuit c. three-conductor circuit d. four-conductor circuit

Trades & Technology

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.

Trades & Technology

What type of reaction is occurring in the stirred reactor?

a. exothermic b. endothermic c. combustion d. replacement e. neutralization

Trades & Technology

"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

Trades & Technology