Electronics

Specific Competencies and Skills Tested in this Assessment:

 

Safety

•  Demonstrate understanding of SDS
•  Exhibit understanding of ESD protection (electrostatic discharge)
•  Exhibit understanding of PPEs (personal protective equipment)

 

DC Circuits

• Identify color-coded and SMT resistor codes
• Identify DC components
• Identify and understand DC circuitry
• Explain voltage and current relationships in series and parallel circuits
• Identify, calculate, and connect resistors in series, parallel, and combinational circuits
• Identify and understand DC schematic symbols
• Demonstrate understanding of Ohm’s Law (DC circuitry)
• Understand DC power, energy, and sources

 

AC Circuits

• Identify AC components
• Identify and understand AC circuitry
• Demonstrate understanding of properties of electricity and magnetism
• Explain current and voltage phase relationships
• Identify and understand AC schematic symbols
• Demonstrate understanding of Ohm’s Law (AC circuitry)
• Analyze waveforms
• Understand AC power, energy, and sources
• Demonstrate understanding of transformers
• Demonstrate understanding of power factor (apparent vs. true power)

 

Solid State Circuits

• Identify and understand solid state symbols
• Identify and understand diode types and circuits
• Demonstrate understanding of transistor operations (NPN-BJT, PNP-BJT, and FET)
• Identify and understand the functions of regulator circuits
• Identify and understand the functions of amplifier circuits
• Identify and understand the functions of oscillator circuits
• Identify and understand the functions of SCR circuits
• Identify and understand the functions of thyristor circuits (triac and diac)

 

Soldering and De-Soldering

• Identify and explain operation of soldering and de-soldering equipment
• Demonstrate through-hole and SMT soldering techniques

 

Use of Equipment

• Demonstrate the care and use of hand tools
• Demonstrate the care and use of multimeters (transistor, capacitance, and frequency)
• Demonstrate the care and use of oscilloscopes
• Demonstrate the care and use of power supplies
• Demonstrate the care and use of isolation transformers and variacs
• Demonstrate the care and use of function generators
• Demonstrate the care and use of logic probes

 

Digital Theory

• Use appropriate reference material
• Identify and understand digital symbols
• Demonstrate understanding of digital logic (gates, counters, and flip-flops)
• Recognize sequential and combinational digital circuits

 

Electronics-Related Mathematics

• Demonstrate knowledge of basic Boolean algebra
• Identify and understand gates and truth tables
• Demonstrate understanding of percentages and fractions
• Demonstrate understanding of algebra, geometry, and trigonometry
• Perform conversions of number systems and unit measurements

Written Assessment:

Administration Time: 3 hours
Number of Questions: 180

Areas Covered: 

Safety: 5%

DC Circuits: 21%

AC Circuits: 19%

Solid State Circuits: 17%

Soldering and De-Soldering: 3%

Use of Equipment: 13%

Digital Theory: 11%

Electronics Related Mathematics: 11%

 

Sample Questions:

The physical size of a resistor indicates

1. resistance value
2. voltage rating
3. tolerance
4. wattage rating

 

A battery generates electricity by

1. thermoenergy
2. proton potential
3. electron potential
4. chemical reaction

 

Zener diodes normally operate

1. forward-biased
2. reverse- biased
3. without voltage
4. non-biased

 

Which meter is always wired in series?  

1. ohmmeter
2. ammeter
3. wattmeter
4. voltmeter

 

An ampere of current is the same as

1. .001 mA
2. 10 mA
3. 100 mA
4. 1000 mA

 

To help prevent eye injuries,

1. wear safety glasses
2. clip wires and components away from the body
3. wear a safety shield
4. look away while clipping wires and components

 

Conducting a magnetic field around a circuit or device is called

1. shielding
2. permeability
3. hysteresis
4. flux

 

To properly store a solder pencil or start any soldering procedure, the technician should

1. tin the tip
2. sweat the tip
3. wipe the tip
4. unplug the pencil

 

A triangle followed by a circle (bubble) describes a/an

1. amplifier
2. inverter
3. AND gate
4. NAND gate

 

A circuit allows 1 mA of current to flow with 1 volt applied.  The resistance of the circuit equals

1. 0.001mΩ
2. 0.001 Ω
3. 1 Ω
4. 1,000 Ω



Performance Assessment:

Administration Time: 3 hours and 10 minutes
Number of Jobs: 5

Areas Covered:

12% IC Identification
Participant will use the reference sheet and identify digital functions.   

26% DC Circuit Construction and Analysis
Participant will choose components correctly, construct protoboards, complete calculations and measurements.   

21% Power Supply Construction and Analysis
Participant will construct power supply, complete measurements and calculations.  

17% De-Soldering and Soldering
Participant will de-solder, solder (re-solder), and identify components.     

24% CE Amplifier Construction and Analysis
Participant will construct the CE amplifier, complete calculations, and measure voltage.    

Sample Job: IC Identification
Maximum Time: 10 minutes
Participant Activity: The participant will go to the designated station and use the manual provided to identify integrated circuits.