Nate Quiz Questions and Correct Solutions Graded A+.

What method of heat transfer does not require fluids or solids ? - Answer: Radiation - movement of heat through heat waves Capillary tubing should only be cut to length using a : - Answer: A triangular or knife-edge file Before beginning any electrical checkout procedure, what steps must be taken after the equipment disconnect or circuit breaker has been turned off? - Answer: Check for the presence of voltage When making a flare, the height of the tubing above the flaring block is critical because a flare with too much starting height will: - Answer: The flare will not fit into the flare nut The dew point is - Answer: The temperature at which water vapor condenses The temperature most often used by customers when discussing human discomfort is: - Answer: Dry bulb reading Which meter setting should a technician use to determine whether or not a set of contacts are open in an energized circuit? - Answer: Voltmeter Pictorial wiring diagrams generally show components: - Answer: In their approximate positions in the equipment A ladder schematic is useful for ; - Answer: Troubleshooting a unit, power path control load and return to power A digital electrical multimeter marked "autoranging" will automatically set itself for : - Answer: Reads voltage and range when connected to a voltage source To properly test the accuracy of a thermometer, it should be immersed in a: - Answer: Water and ice bath What is typically represented by the two lines on the sides of a ladder diagram? - Answer: Each leg of line voltage only Lever type tubing benders are best used for: - Answer: Soft drawn copper tubing The heat that causes a thermometer reading to change is called : - Answer: Sensible heat The material that is used over roof beams or rafters as a base for the roofing is called : - Answer: Sheathing Construction fall protection is required when heights above what? - Answer: 6 feet What is an example of a wet bulb thermometer? - Answer: A conventional thermometer with a moistened wich covering its sensor A technician working around an operating blower should: - Answer: Wear tight fitting clothes, remove jewelry, and secure long hair with a cap or net What is a ground fault circuit interrupter (GFCI) receptacle? - Answer: A receptacle that is used to protect against electrical shocks from appliances and extension cords ( prevents you from fault to ground ) ( preventing a shock) A tool specifically made to thread a hole in metal is a : - Answer: Tap What device does the above electrical symbol represent? - Answer: Open on rise temperature control (All control in a schematic are drawn in their closed position) What is the proper care of hand tools? - Answer: Clean and wipe them reguarly Latent heat is the head added or removed when a substance : - Answer: Changes it's physical state What is a measurement of a sound level? - Answer: Decibel According to diagram, what is the purpose of the RC component? - Answer: Run capacitor, used for compressor and the fan motor According to the diagram, how is the crankcase heater energized? - Answer: It is only if the contacts of the compressor are open The primary purpose for bringing outdoor air into a residential air distribution system is to? - Answer: Provide fresh air into the conditioned space How should a technician measure resistance with a digital ohmmeter