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Solve equations using Ohm’s Law
Assessment Strategies
Test
Criteria
Define Ohm’s Law
Define voltage (volts)
Define amperage (amps/current)
Define resistance (ohms)
Explain the relationship between volts, amps and ohms.
Solve for volts, amps and ohms when only given two of the variables
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Interpret a typical vehicle electrical schematic
Assessment Strategies
Test, Verbal, and/or Skill Demonstration
Criteria
Recognize wiring diagram symbols
Describe how a switch is used in a circuit
Explain what a load is in terms of an electrical circuit
Identify the power supply portion of a circuit
Identify the ground portion of a circuit
Identify the load(s) on a vehicle wiring diagram
Use online database (Alldata, Mitchell, etc.) to access wiring diagrams
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Use a digital multimeter (DMM) for testing
Assessment Strategies
Skill Demonstration
Criteria
Connect a DMM to a circuit
Follow safety procedures
Apply proper range selection for testing
Describe volts, amps and ohms as it relates to DMM
Interpret results on DMM display
Define the term “voltage drop”
Use a test light effectively
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Examine vehicle circuits
Assessment Strategies
Skill Demonstration
Criteria
Interpret series circuit laws
Interpret parallel circuit laws
Perform voltage drop testing of circuits (good and faulty)
Test current in a circuit
Test resistance in a circuit
Perform voltage drop test of a relay circuit
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Explain circuit components
Assessment Strategies
Skill Demonstration
Criteria
Describe magnetism and electricity
Explain how a relay works (electro-mechanical devices)
Explain how a relay is used in a typical automotive circuit
Identify types of switches
Examine main load in a circuit
Identify fuse, circuit breaker, connector
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Solve circuit problems
Assessment Strategies
Skill Demonstration
Criteria
Interpret cause and effects from opens, shorts, grounds and resistance problems
Demonstrate diagram use for troubleshooting
Explain parasitic (key-off) battery drains
Perform circuit repairs and soldering