Electric Heat ESCO - HVAC Excellence Exam Review Correct Questions with Answers_ A+ Graded 100% Excel

Electric Heat ESCO - HVAC Excellence Exam Review Correct Questions with Answers_ A+ Graded 100% Excel Before working on an electric furnace the tech should - CORRECT ANSWER-Review diagram, remove jewelry, and follow safety procedures. ALL OF THE ABOVE. A GFCI circuit breaker - CORRECT ANSWER-detects current leaks to groound the conductor in an electric heat element is usually made of - CORRECT ANSWER-Nichrome An example of resistive load is - CORRECT ANSWER-crankcase heater an example of an inductive load is - CORRECT ANSWER-motor an electric furnace is marked 208/230 single phase 60Hz A tech reads 200 vac at the power supply and determines - CORRECT ANSWER-the voltage is too low voltage imbalance between any leg of 3 phase power supply may not exceed - CORRECT ANSWER-2% the limit switch on an electric furnace is a - CORRECT ANSWER-Automatic reset switch the sequencer timers on electric heater will usually energize the 1st heating element after a time delay of - CORRECT ANSWER-1 to 30 sec the amount of btus produced by 1 watt of electricity is - CORRECT ANSWER-3.413 btus a tech reads 60 amps with a clamp on amp meter on a forced air furnace. the supply voltage is 230 volts AC, approx how many watts is the furnace using - CORRECT ANSWER-13,800 a furnace is using 15,500 watts approx Kw - CORRECT ANSWER-15.5 Kw a sequencer timer use _____ to close the contact points to the heater element - CORRECT ANSWER-heated snap-discs or bi-metal strips an electric furnace heating thermostat must - CORRECT ANSWER-open on rise close on drop a standard thermostat heat anticipator is ____ and wired in ____ with the heating control - CORRECT ANSWER-adjustable/series some thermostat manufacturers require a jumper connection on the thermostat subbase of heating and cooling thermostat in order to - CORRECT ANSWER-use a single transformer