The main types of overcurrent protection used for a condensing unit are:
A) Time delay fuses or an HACR circuit breaker.
B) Condensing units do not require overcurrent protection.
C) Fast blowing fuses.
D) Magnetic overload relays.
A
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?Daguerreotype cases were made from ____ combined with wood flour.
A. ?rubber B. ?gutta percha C. ?horn D. ?shellac
Calculate the force, pressure, or area problems, as indicated.
Fill in the blank(s) with the appropriate word(s).
For which of the following actions is the last part of the evaporator used?
A) Superheating the refrigerant B) Raising the liquid percentage C) Lowering the liquid percentage D) Increasing the vapor percentage
Eight resistances are connected in series as shown. The unit of measure for resistance is the ohm. The resistance in a series circuit is the sum of all resistances in that circuit. Find the total amount of resistance in the circuit.
A. 
B. 
C. 
D. 