ABYC ELECTRICAL STUDY 3 QUESTIONS WITH ALL CORRECT ANSWERS

ABYC ELECTRICAL STUDY 3 QUESTIONS WITH ALL CORRECT ANSWERS 1. WHEN TESTING A TEMPERATURE GAUGE, THE TECHNICIAN REMOVES THE WIRE FROM THE ENGINE SENDING UNIT AND GROUNDS IT TO THE ENGINE BLOCK. THE GAUGE THEN READS FULL SCALE. THE GAUGE DID NOT FUNCTION BEFORE. THE PROBLEM IS: - Answer-A FAULTY SENDING UNIT 1. WHEN TESTING FOR A NON-FUNCTIONAL TACHOMETER ON A DIESEL ENGINE WITH A SIGNAL GENERATOR AS THE RPM SIGNAL SOURCE, THE TECHNICIAN SHOULD USE: - Answer-A DVOM SET TO THE AC VOLTS SCALE 1. MOTOR CIRCUITS THAT DO NOT PROVIDE THEIR OWN INTEGRATED THERMAL CUTOUT MUST BE FUSED BASED ON: - Answer-MOTOR VENDOR RECOMMENDATIONS 1. AC RECEPTACLES MAY BE USED FOR DC SERVICE BASED ON ABYC STANDARS AS LOG AS THEY ARE: - Answer-NEVER BE USED FOR DC SERVICE 1. TECH A SAYS THAT WHEN THE CURRENT DOES NOT FLOW IN A CIRCUIT, THERE IS AN OPEN IN THE CIRCUIT. TECH B SAYS WHEN THE CURRENT DOES NOT FLOW IN THE CIRCUIT, THERE IS A SHORT IN THE CIRCUIT. WHICH TECH IS CORRECT? - Answer-TECH A 1. TO TEST THE VOLTAGE DROP TO THE CRANKING MOTOR, CONNECT THE VOLTMETER LEADS - Answer-BOTH B AND C (B. TO THE NEGATIVE BATTERY POST AND NEGATIVE CABLE TERMINAL AT THE ENGINE WHILE CRANKING THE ENGINE, C. TO THE POSITIVE BATTERTY POST AND POSITIVE CABLE TERMINAL AT THE STARTER WHILE CRANKING THE ENGINE) 1. A CUSTOMER COMPLAINS THAT THE GAS GAUGE IS SHOWING ¼ FULL. THE CUSTOMER RAN OUT OF GAS AN RE QUIRE A TOW TO THE DOCK. THE TEH SAYS THE MOST LIKELY PROBLEM IS - Answer-STICKING FLOAT ARM/ SENDING UNIT 1. IF A 12 V BLOWER MOTOR WILL NOT RUN AND THERE IS POWER TO THE MOTOR LEADS, THE MOTOR - Answer-SHOULD BE REPLACED 1. WHEN INSTALLING FUSE HOLDERS FOR ANY PIECE OF EQUIPMENT THE TECHNICIAN SHOULD ALWAYS USE - Answer-ONE SPECIFIED BY THE MANUFACTURER 1. WHEN AN INCANDESCENT NAV LIGHT IS NOT WORKING, THE TECH SHOULD CHECK ALL OF THE FOLLOWING EXCEPT - Answer-THE POLARITY OF THE LAMP HOLDER 1. A RELAY/SELENOID IS SOMETIMES USED AS A ___________IN LONGER WIRING RUNS - Answer-SWITCH 1. A CUSTOMER COMPLAINS OF A DEFECTIVE TRIM TAB PUMP. UPON INSPECTIONS, THE TECHNICIAN FINDS THE NEGATIVE RETURN CONNECTED TO THE BONDING SYSTEM. THE TECHNICIAN SHOULD - Answer-PROPERLY INSTALL A NEW DC NEGATIVE CONDUCTOR AND REPAIR OR REPLACE THE DEFECTIVE TRIM TAB PUMP 1. TO PROTECT THE METER WHEN DOING AN OHMS TEST INSURE THAT THE - Answer-CIRCUIT IS DE-ENERGIZED 1. AC RECEPTACLES MAY BE USED FOR DC SERVICE BASED ON ABYC STANDARS AS LONG AS THEY ARE - Answer-NEVER BE USED FOR DC SERVICE 1. BASED ON THE MATERIAL WITHIN THIS SECTION, HIGH-FREQUENCY TRANSFORMERS TYPICALLY RUN_________ THAN TRADITIONAL MAGNETIC TRANSFORMERS. - Answer-COOLER 1. BASED ON THE STUDY GUIDE, THE BEST TOOL TO USE FOR LOCATING SHORT CIRCUITS TODAY IS THE: - Answer-TDR 1. BASED ON ABYC, ALL TERMINATIONS FOR AC CONDUCTORS MUST BE INSTALLED: - Answer-INSIDE AN ENCLOSURE REQUIRING THE USE OF HAND TOOLS TO OPEN 1. A CAPACITOR IS A DEVICE THAT - Answer-TEMPORARILY STORES ELECTRICAL ENERGY 1. A CUSTOMER COMPLAINS OF ELECTRICAL OF ELECTRICAL SHOCK ON THE CASE OF A 120V WATER HEATER. ALL OF THE FOLLOWING ARE PROBABLE CAUSES OF THE SHOCK HAZARD EXCEPT - Answer-DEFECTIVE PRESSURE / TEMPERATURE RELIEF VALVE 1. TO SAFELY DIAGNOSE THE CONDITION OF A CAPACITOR, YOU SHOULD __________ THE CAPACITOR - Answer-ISOLATE AND DISCHARGE 1. WHEN WORKING ON A 120V AC ELECTRICAL CIRCUIT, POWER SHOULD BE APPLIED ONLY AS NECESSSARY TO - Answer-MEASURE CURRENT AND VOLTAGE 1. ALL OF THE FOLLOWING COULD CAUSE A CONDUCTOR TO OVERHEAT EXCEPT: - Answer-INSULATION TEMPERATURE RATING TOO LOW 1. THE MINIMUM BATTERY RESERVE CAPACITY IN HOURS OR MINUTES FOR SUPPLIED BATTERY POWER IS_____BASED ON ABYC - Answer-90 MINUTES