Industrial Electronics

Specific Competencies and Skills Tested in this Assessment:

Written Assessment:

Administration Time: 3 hours
Number of Questions: 192

Areas Covered:

10% DC Electricity
10% AC Circuits
9% Test Equipment
14% Semiconductors
13% Electronic Circuits
14% Digital/Micro
6% Transducers
6% Ladder Logic and Motors
9% Safety
9% Programmable Logic Controllers

Sample Questions

Decreasing the capacitance value of a capacitor is accomplished by 

1. increasing the thickness of the dielectric
2. increasing the dielectric constant
3. decreasing the spacing between the two plates
4. increasing the area of the plates 

In a transistor, as heat increases, leakage currents 

1. decrease
2. increase
3. are not affected
4. are equal to forward currents 

The primary advantage of a thermistor used as a thermal transducer is its 

1. linearity
2. ability to withstand high temperatures
3. fast response to temperature changes
4. ability to convert thermal energy directly to a voltage, eliminating the need for an  external voltage source

Electrical hand tools differ from conventional hand tools in that:

1. the metals used are a higher grade than used with conventional hand tools
2. the handles are covered with an insulating material
3. the metals used are tempered to a higher degree of hardness
4. the handles are covered with a conductive material 

How can a hand-held programmer be used to troubleshoot a PLC? 

1. by adjusting scan time
2. by randomly adjusting output states
3. by stepping through program and verifying inputs and outputs
4. by changing input addresses