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Ace your SOS Mechanic Certificate exam with this verified 2025/2026 electrical Q&A set featuring 100% correct answers. Covers key auto-electrical procedures like PCM timing after battery replacement, voltage behavior in blower motor circuits, and safe fuse/junction block replacement. A must-have resource for automotive students and certified technicians alike. Português: Certificação elétrica SOS com respostas verificadas para técnicos automotivos e eletricistas. Español: Certificado SOS Mecánico con respuestas correctas sobre sistemas eléctricos de vehículos. Italiano: Domande corrette per il certificato SOS Meccanico – sezione impianti elettrici 2025. Tags: SOS mechanic certificate, automotive electrical systems, PCM timing, blower motor, junction block, Universal Technical Institute, verified 2025
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After installing a new battery how long should you wait to allow for pcm time - ✔✔no need to wait As blower motor speed decreases the voltage drop across the resistance block.... - ✔✔increases What should you do first when replacing junction block or fuse? - ✔✔Unlock the battery ground cable The polarity of the voltage applied to the electromagnetic coils of an actual working DC motor is.... - ✔✔a commutator When performing a volt drop test the volt meter setting should be set to the following.. - ✔✔3 volts The symbol at the RIGHT represents..... - ✔✔a relay Which device is used to monitor throttle position on the computer - ✔✔potentiometer A reading of .8 volts on the volt meter #2 would indicate..... - ✔✔excessive resistance In a conventional wiring diagram a dot at the enter section - ✔✔Splice After replacement of a defective blower motor the teen found motor spins but no air? - ✔✔reversed polarity to the motor Which piece of test equipment must be connected parallel - ✔✔Volt meter
A vehicles blower motor only works on high..... - ✔✔blower resistor The component D in the following - ✔✔lamp Which one of the following component can be damaged by electrical discharge - ✔✔all of the above An am-meter should be connected in which of the following - ✔✔In series with the load Direct transmitter controlled switches of a component - ✔✔less current, high frequency The following symbol at the right - ✔✔Diode - >}- A technician finds a horn relay that is stuck closed - ✔✔the horn is constantly blowing A fusable link can be tested with... - ✔✔all of the above In the circuit below the left front + left rear turn signals - ✔✔excessive resistance at point b When testing a remote mounted starter relay - ✔✔When testing a remote mounted starter relay An ohm meter - ✔✔can be connected without regard to polarity, unless electrical contains a diode Charging system positive side voltage drop not exceed - ✔✔.7 volts What type of meter should you use to diagnose on board micron computer - ✔✔a high independence digital diagnostic instrument All of the following are circuit protection devices except - ✔✔Shielded wire
Ohms law is E= * R - ✔✔I Which of the following would happen in this circuit if it was shorter to ground - ✔✔the fuse would blow If a short to ground is on the ground sibe of the load but before the grounded switch - ✔✔component will not turn off Using the diagram below which terminals are connected when the turn signal switch - ✔✔196 and 632 In a NTC type sensor - ✔✔increases Many vehicle systems use a diode isolate - ✔✔both a and b are correct Motors that use high current are connected - ✔✔relay You are performing a starter current draw test, low current draw - ✔✔high resistance Before performing a starter current draw test follow preliminary execpt - ✔✔fault codes in computer performing a voltage drop test the current should be - ✔✔closed In the cirucit below is point a is open what will high beam lights - ✔✔normal in intensity In the test being formed below which of the following reading good armature - ✔✔infinite ohms The specification for starter draw is 140 to 180 - ✔✔change and retest the battery A technician is preparing to replace an airbag on the steering wheel - ✔✔all of the above
If a jumper wire is used to jump a and b - ✔✔nothing A technician performing a full field test and the A/C generator - ✔✔ac generator A technician notices the vehicle charging 16 volts - ✔✔bad voltage regulator In the circuit below if point B removed - ✔✔not at all A blower motor on a vehicle with a grounded diode switch system - ✔✔short to ground on the ground sibe of circuit While testing circuit draw on a blower motor test notices current draw - ✔✔nothing this is normal The mechanic is scope testing an ALT - ✔✔normal operation