SOS MECHANIC CERTIFICATION
EVALUATION 2026 QUESTIONS AND
SOLUTIONS VERIFIED ANSWERS GRADED
A+
●● As blower motor speed decreases the voltage drop across the
resistance block.....
Answer: increases
●● What should you do first when replacing junction block or fuse?.
Answer: Unlock the battery ground cable
●● The polarity of the voltage applied to the electromagnetic coils of an
actual working DC motor is.....
Answer: a commutator
●● When performing a volt drop test the volt meter setting should be set
to the following...
Answer: 3 volts
●● The symbol at the RIGHT represents......
Answer: a relay
, ●● Which device is used to monitor throttle position on the computer.
Answer: potentiometer
●● A reading of .8 volts on the volt meter #2 would indicate......
Answer: excessive resistance
●● In a conventional wiring diagram a dot at the enter section.
Answer: Splice
●● After replacement of a defective blower motor the teen found motor
spins but no air?.
Answer: reversed polarity to the motor
●● Which piece of test equipment must be connected parallel.
Answer: Volt meter
●● A vehicles blower motor only works on high......
Answer: blower resistor
●● The component D in the following.
Answer: lamp
EVALUATION 2026 QUESTIONS AND
SOLUTIONS VERIFIED ANSWERS GRADED
A+
●● As blower motor speed decreases the voltage drop across the
resistance block.....
Answer: increases
●● What should you do first when replacing junction block or fuse?.
Answer: Unlock the battery ground cable
●● The polarity of the voltage applied to the electromagnetic coils of an
actual working DC motor is.....
Answer: a commutator
●● When performing a volt drop test the volt meter setting should be set
to the following...
Answer: 3 volts
●● The symbol at the RIGHT represents......
Answer: a relay
, ●● Which device is used to monitor throttle position on the computer.
Answer: potentiometer
●● A reading of .8 volts on the volt meter #2 would indicate......
Answer: excessive resistance
●● In a conventional wiring diagram a dot at the enter section.
Answer: Splice
●● After replacement of a defective blower motor the teen found motor
spins but no air?.
Answer: reversed polarity to the motor
●● Which piece of test equipment must be connected parallel.
Answer: Volt meter
●● A vehicles blower motor only works on high......
Answer: blower resistor
●● The component D in the following.
Answer: lamp
