What effect does the presence of non-condensables have on a system?
What will be an ideal response?
Non- condensables take up space in the condenser and raise the system high side pressure. This increases the compression ratio, increases the compressor amp draw and decreases the compressor capacity. The end result is decreased the system capacity, increased compressor operating temperature, and increased system operating costs.
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Describe the key points of Phase 3 in a hurricane plan.
What will be an ideal response?
Technician Asays a shorted circuit can generate excessive heat. Technician B says a shorted circuit will cause the circuit protection device to open. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
Some General Motors electric fuel pump circuits incorporate a(n) ________ that functions as a back-up circuit to energize the fuel pump relay
A) Feedback Sensor B) Idling switch C) Fuel Pressure Sensor D) Oil Pressure Switch
In ratio control, a sensor is used to measure each individual controlled flow, and a sensor is used to measure the wild flow.
Answer the following statement true (T) or false (F)