-
Demonstrate safe work habits while in a shop environment
Assessment Strategies
Skill demonstration in shop
Criteria
Wear steel-toed shoes, safety glasses, long sleeved top, uniform type pants or jeans
Clothing is not loose or ripped
Jewelry does not interfere with shop tasks
Hair is tied back to prevent accident with moving equipment
Clear shop area for safely raising and supporting vehicle or equipment
Identify safety items and hazards
-
Use Ohm's Law to demonstrate / predict DC electrical behavior
Assessment Strategies
Test
-
Explain fundamental electrical/electronic system principles
Assessment Strategies
Test
Criteria
Examination includes answers to questions regarding fundamental electrical/electronic principles
-
Use a multi-meter (DVOM, DMM) to measure voltage, amperage, and resistance
Assessment Strategies
Skill demonstration in shop
Criteria
Recognize when multimeter battery has failed
Test multimeter fuses
Replace multimeter fuses if needed
Explain the different functions of a multimeter
Use metric prefixes and abbreviations for measuring voltage, current, and resistance
Verify the correct operation of components disconnected from the circuit
Measure available voltages with key off and engine off
Measure available voltages with key on and engine off and all accessories off
Utilize the Min/Max feature of multimeter to measure cranking voltage at the batteries
Compare voltage measurements at the alternator and dash gauge reading with engine running
Recommend any repairs needed
-
Describe the use of microprocessors and other electronic devices in equipment electrical systems
Assessment Strategies
Test, Skill demonstration in shop
Criteria
Identify primary electronic devices used in controller circuits such as potentiometers, magnetic
pickups, and variable resisters
Build a signal circuit for an electronic central processing unit/controller
Describe the basic functions of a controller circuit
Describe procedures and tools for diagnosis of electronic controllers and circuits
-
Use ISO schematics in diagnostic procedures
-
Maintain electrical/electronic system terminals, connectors, wire, and cable
Assessment Strategies
Skill demonstration in shop
Criteria
Wire harness includes proper length wire
Wire harness includes the correct selection of terminals for the gage (size) of wire
Wire harness includes the correct gage (size) of wire
Wire harness includes the correct amount of insulation stripped from wire
Wire harness includes heat shrink where necessary
Wire harness includes proper crimping of terminals to wire
Wire harness withstands strength test
Wire harness includes the proper type of protective loom
Battery cable selection is the correct gage (size) for circuit requirements
Battery cable selection is the correct length
Battery cable has the proper amount of insulation removed
Battery cable terminals are orientated before they are crimped
Battery cable terminals are correct for the gage (size) of cable
Battery cable terminals are correct diameter for their connection points
Battery cable terminals are crimped using the correct crimping dies
Battery cable has solder applied to inside of both terminal ends
Battery cable includes adequate amount of heat shrink
Battery cable includes heat shrink that has not been overheated
Soldering repair includes the removal of the damaged selection of wire
Soldering repair includes the placement of the correct size and length of heat shrink over the two ends of the wire
Soldering repair includes a small overlap of the two splice ends
Soldering repair includes a splice clip if needed
Soldering repair includes the correct amount of insulation removed from the wire
Soldering repair includes a uniform amount of solder applied to the joint
Soldering repair includes heat shrink over the splice joint
Soldering repair includes heat shrink that has not been overheated
-
Explain Pulse-Width Modulation
-
Interpret ISO and Non-ISO electrical system diagrams and flow charts
Assessment Strategies
Test, Scenario, Verbal, Skill demonstration in shop
Criteria
Select diagrams and charts for the assigned piece of equipment
Interpret the electrical wiring diagram and flow chart
Diagnose electrical system problem on piece of equipment
Identify the shown schematic symbol by name
Describe additional means of showing a particular symbol
Locate the component that is represented by the symbol on a piece of equipment
Describe the function and operation of the component as it relates to circuit operation
Identify sub circuits within starting system
Identify sub circuits properly color coded
Describe operation of the circuit starting at the battery and ending at the starter motor
Interpret electrical/electronic symbols
Color code each specific circuit using different colors for different scenarios