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Title: Valves that open and close rapidly under the control of electronic circuits are: Post by: qwerqwerqer on Mar 16, 2018 Valves that open and close rapidly under the control of electronic circuits are:
A) Pulse modulated valves. B) Cross charged expansion valves. C) Electronic expansion valves. D) Stepper motor valves. Q. 2 One disadvantage infrared thermometers is that they: A) Are only available in limited quantities due to their specialized nature. B) Are generally less accurate than dial type pocket thermometers. C) Take longer to get a reading than other types of thermometers. D) Can only read the temperature of objects. Q. 3 The operation of a thermostatic expansion valve can best be described as: A) Spring pressure = bulb pressure + evaporator pressure. B) Bulb pressure = evaporator pressure + spring pressure. C) Bulb pressure = evaporator pressure = spring pressure. D) Evaporator pressure = evaporator pressure + bulb pressure. Title: Valves that open and close rapidly under the control of electronic circuits are: Post by: Quam13 on Mar 16, 2018 A D B Title: Valves that open and close rapidly under the control of electronic circuits are: Post by: qwerqwerqer on Mar 16, 2018 Perfect on my quiz, so smart <3
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