NATE CORE QUESTIONS WITH 100% CORRECT ANSWERS RATED A+

What method of heat transfer does not require fluid or solids? - radiation Capillary tubing should only be cut to length using a - 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 - 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 ______ - will not fit into the flare nut The due point is _________ - the temp in which water vapor condenses The temp most often used by customers when discussing human comfort is - dry bulb Pictorial wiring diagrams generally show - 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 - voltage A ladder schematic is useful for - troubleshooting a unit A digital electrical multimeter marked auto ranging will automatically set itself for - reading voltage & range connecting and range In the event of a 4% voltage drop what will be two secondary voltage ? - 23.04 v To properly test the accuracy of a thermometer you must _____ - should be immersed in ice bath Lever type tubing benders are best used for - soft drawn copper tubing What is typically represented by the 2 lines on sides of ladder diagrams - each leg of line voltage only The heat that cause a thermometer reading to change - sensible heat The material that is used over the roof beams or rafters? - sheathing Construction fall protection when working over - 6 feet What is an example of a wet bulb thermometer? - a conventional thermometer w a moistuered cloth wick covering sensor A tech working around an operational blower - wear tight fitting clothes, remove jewelry secure long hair. The tool specifically made to thread a hole in metal - a tap What is a gfci receptacle - a receptacle that is used the protect from electrical shocks from appliances and extension cords What is proper for care of hand tools - clean and wipe them regulary Latent heat is the heat added or removed when substance - changes its physical state What is a measurement of sound level - decibel According to the diagram what is the purpose of the rc (run capacitor) component - run capacitor used for compressor and fan motors According to the diagram how is a crankcase heater - it is only on when the contacts of the compressor Primary purpose for bringing outdoor air into a residential air distribution system is - provide air to conditioned space