A parallel heat reclaim system primarily recovers:
A) Latent heat from the refrigerant.
B) Sensible heat from the refrigerant.
C) Both sensible and latent heat from the refrigerant.
C
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____ are documents that accompany the drawings and contain all pertinent written information related to the HVAC system.
A. Specifications B. As-built C. Requirements D. Annotations
What is TRUE about customer interactions?
A. Avoid putting customer who call on hold unless already working with a customer at the counter B. Assistance answering the phone is never needed on a busy day when several phone calls come in at the same time C. The phone call is always more important than the customer waiting at the counter D. When customers call, immediately put each on hold, no technique to do it courteously is required
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.
A magnetic field is created in the ___________ in an alternator
A) Diodes B) Frame C) Rotor D) Stator