What is a zone control system?
What will be an ideal response?
A zone control system is a control system that is used to distribute an adequate quantity of air to maintain the desired temperature in a specific area of the structure.
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Identify which of these equations should be used for the following load estimates:
(1) Q = U × A × TETD (2) Q = U * A * TD (3) Q = 1.1 * CFM * TD (4) Q = SC * A * SHGF (5) Q = 4.5 * CFM * ?H (6) Q = 3.41 * P A. ________Conducted heating load through a roof B. ________Conducted cooling load through a wall C. ________Conducted cooling load through a window D. ________Solar cooling load through a window E. ________ Winter infiltration load F. ________ Summer infiltration load G. ________Appliance cooling load
Answer the following statement(s) true (T) or false (F)
1. The operational amplifier, or op amp, is a high-gain differential amplifier that can amplify AC or DC voltages. 2. The open-loop voltage gain does not vary significantly from op amp to op amp. 3. The voltage follower can be used only to match a high impedance input stage to a low impedance output stage. 4. The feedback resistor provides positive feedback that will reduce the gain to a manageable level. 5. Op amp differential amplifiers are not used in closed-loop systems.
The maximum acceptable temperature in a food vending cabinet is ____________________°F.
Fill in the blank(s) with the appropriate word(s).
Which of the Catholic Church’s seven sacraments did Martin Luther retain in his work The Babylonian Captivity of the Church?
a. confirmation, baptism, and penance b. penance, marriage, and baptism c. baptism, the Eucharist, and penance d. the Eucharist, the last rites, and marriage