HVAC final exam, unit 15 Correct 100%(GRADED A+)

A control can be which of the following? - ANSWER All of the above An example of a power consuming device would be a(n) ____ while an example of a non-power consuming device would be a(n) _____. - ANSWER Light bulb, single-pole single-throw switch An electrical power consuming component. - ANSWER is also known as a load The line side of a switch is the. - ANSWER side the power source is connected to If an air conditioning system is calling for cooling and the compressor is running but the indoor (evaporator) fan is not running, which terminal on the thermostat will the technician most likely check? - ANSWER G The _______ is nothing more than a set of switches. - ANSWER thermostat The continuity through the heat relay is checked using a(n) - ANSWER ohmmeter A 10-wrap amperage multiplier is used with a(n) - ANSWER Clamp-on ammeter Transformers are rated using - ANSWER volt-amperes A(n) ____ is the easiest diagram to use to follow a circuit. This diagram normally can be studied briefly, and the circuit function should become obvious. - ANSWER Ladder diagram An electrical diagram showing the approximate location of the components is called a(n) - ANSWER Pictorial diagram T/F: If line of a circuit had a potential of 120 V and line two was neutral, the potential voltage (difference) between line one and line two would be zero volts. - ANSWER False T/F: The heat anticipator in a thermostat is usually an adjustable type. - ANSWER True T/F: The cooling anticipator in a thermostat is usually an adjustable type. - ANSWER False T/F: When checking thermostat circuits, an insulated jumper wire is a handy tool. - ANSWER True T/F: When conditions are correct, the rheostat will pass power through the device onto the system components to be controlled - ANSWER False T/F: A 120-V/24-V control transformer has a VA rating of 20. The maximum amperage the transformer will put out is 0.8 amps - ANSWER True T/F: When using a ten-wrap multiplier, the reading on the meter must be multiplied by ten. - ANSWER False