After determining that voltage is available to the control circuit of a residential air-conditioning system, what four devices should be checked when troubleshooting the system?
What will be an ideal response?
Once it is determined that voltage is available to the control circuit, the only items left to check are the devices in the circuit. In the control circuit, there are four devices that should be checked: the low-pressure and high-pressure switches, the thermostat, and the contactor coil.
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Technician A says that face shields should always be worn when using a bench grinder. Technician B says that face shields are not required if the bench grinder has built-in shields. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
What part controls mainline pressure in an electronically shifted automatic transmission?
A) Spool valve B) Pressure control solenoid (force motor) C) Modulator valve D) Boost valve
If a gauge has "balancing coils" it will be considered to be this type of gauge:
a. Electric b. Electronic c. Mechanical d. Virtual
Use mesh analysis to find the currents through every branch in Figure P3.33. Let R1 = 10?, R2 = 5?, R3 = 4?, R4 = 1?, V1 = 5V, V2 = 2V.
What will be an ideal response?