Nate Core Test Questions with Complete Solutions Graded A+

What method of heat transfer does not require fluid or solids? - Answer: Radiation Capillary tubing should only be cut to length using a - Answer: Triangular or knife edge file Before beginning any electrical check out procedure what step must always be taken after the equipment disconnect or circuit breaker has been turned off - Answer: Check for voltage When making a flare the height of the tubing above the flare block is critical because the flare with too much starting height will ______ - Answer: Will not fit into the flare nut The due point is _________ - Answer: the temp in which water vapor condenses the temp most often used by customers when discussing human comfort is - Answer: dry bulb Pictorial wiring diagrams generally show - Answer: in the approximate positions in the equipment What meter setting should a tech use whether or not a set of contacts are open in and - Answer: Voltage a ladder schematic is useful for - Answer: troubleshooting a unit A digital electrical multimeter marked auto ranging will automatically set itself for - Answer: reading voltage & range connecting and range In the event of a 4% voltage drop what will be two secondary voltage ? - Answer: 23.04 V to properly test the accuracy of a thermometer you must _____ - Answer: Should be immersed in ice bath Lever type tubing benders are best used for - Answer: soft drawn copper tubing what is typically represented by the 2 lines on sides of ladder diagrams - Answer: each leg of line voltage only the heat that cause a thermometer reading to change - Answer: sensible heat The material that is used over the roof beams or rafters? - Answer: Sheathing Construction fall protection when working over - Answer: 6 feet What is an example of a wet bulb thermometer? - Answer: a conventional thermometer w a moistuered cloth wick covering sensor a tech working around an operational blower - Answer: wear tight fitting clothes, remove jewelry secure long hair. The tool specifically made to thread a hole in metal - Answer: a tap what is a GFCI receptacle - Answer: a receptacle that is used the protect from electrical shocks from appliances and extension cords what is proper for care of hand tools - Answer: clean and wipe them regulary Latent heat is the heat added or removed when substance - Answer: Changes its physical state what is a measurement of sound level - Answer: decibel According to the diagram what is the purpose of the rc (run capacitor) component - Answer: Run Capacitor used for compressor and fan motors