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CDC Electrical Systems Practice Test Questions (5 Level) Exam Questions With Verified Answers
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©BRIGHTSTARS EXAM SOLUTIONS 11/14/2024 12:19 PM 1 | P a g e CDC Electrical Systems Practice Test Questions (5 Level) Exam Questions With Verified Answers What does increasing the use of solid-state switching devices contribute to current waveforms? a.A regulated voltage waveform also known ...

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  • November 18, 2024
  • 46
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • cdc electrical systems practice test questions 5

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©BRIGHTSTARS EXAM SOLUTIONS

11/14/2024 12:19 PM


CDC Electrical Systems Practice Test
Questions (5 Level) Exam Questions With
Verified Answers



What does increasing the use of solid-state switching devices contribute to current waveforms?


a.A regulated voltage waveform also known as a uni-sinusoidal waveform
b.A distorted voltage waveform also known as a bi-sinusoidal waveform
c.A distorted voltage waveform also known as a non-sinusoidal waveform

d.A regulated voltage waveform also known as a non-sinusoidal waveform - answer✔C
Why is the substitution of defective foreign parts or materials for US standard parts a good
strategy?


a.Repair is always guaranteed using substitute parts and materials
b.Repairs might be completed more efficiently by modifying the original system
c.None of the above

d.Repair is always faster when using US standard parts as substitute - answer✔B
What is the purpose of lockout/tagout?


a.Make work easier
b.Comply with OSHA standards
c.Prevent hazardous energy sources from harming or killing the bystanders and supervisors
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, ©BRIGHTSTARS EXAM SOLUTIONS

11/14/2024 12:19 PM

d.Prevent hazardous energy sources from harming or killing the worker - answer✔D
When performing a safe clearance, how are all sources of electrical energy verified to be
disconnected or otherwise prevented from energizing the equipment or circuits being worked
on?


a.By a qualified person operating the controls or otherwise verifying that the equipment cannot
be restarted
b.By a qualified person that used test equipment to test the circuit elements and electrical
parts of equipment to which employees will be exposed and verifying that the circuit elements
and equipment part - answer✔D
Which of the following best describes a harmonic?


a.A current of the fundamental frequency of the system
b.A resistance at a multiple of the fundamental frequency of the system
c.A voltage or current at a multiple of the fundamental frequency of the system

d.A voltage of the fundamental frequency of the system - answer✔C
What happens to voltage in a series circuit?


a.In a series circuit, the sum of the voltages consumed by each individual resistance is equal to
the source voltage
b.In a parallel circuit, the sum of the voltages consumed by each individual resistance is equal
to the source voltage
c.In a series-parallel circuit, the sum of the voltages consumed by each individual resistance is
equal to the source voltage
d.In a series circuit, the sum of the current consumed by each individual resistance is equa -
answer✔A
Which of the following statement(s) is/are true about alternating current?




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, ©BRIGHTSTARS EXAM SOLUTIONS

11/14/2024 12:19 PM

a.AC can easily be converted to DC with the use of rectifiers
b.AC may cause harmonics in the power system
c.All answers are correct
d.AC allows electrical power to be generated at low voltage and stepped up for transmission
over long distances - answer✔C
What is the best example of an Emergency Corrective Maintenance scenario (Priority - 1)?


a.Unscheduled work that mitigates a risk to the mission
b.Unscheduled work that is low risk/low priority
c.Scheduled work that sustains the installation's as-is state

d.Scheduled sustainment work that increases CE funding - answer✔A
Which of the following is true about conductors?


a.
All answers are correct
b.
It is a substance that easily allows a large number of free electrons to move through it
c.
It is a material with a high measurement of conductance
d.
The more electrons that can be moved through the material make it a better conductor -
answer✔A
Why do digital circuit's electronic signals take on discrete values?


a.All answers are correct
b.To represent logical and numeric values

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11/14/2024 12:19 PM

c.To divide current between the various components according to their resistance
d.To represent current or voltage that may vary continuously with time in order to correspond
to information - answer✔B
Why should electricians know the procedures for manhole rescue?


a.The danger exists for too many people to be in the manhole and must be rescued
b.The danger exists for them to be injured or overcome by gas or lack of oxygen
c.It is required for upgrade training

d.So they can assist emergency services - answer✔B
What is the difference between the one-person and two-person pole top rescue?


a.There is no difference
b.Person on the ground takes over the rescue once the victim's rope has been cut by
performing first aid in the bucket truck
c.Ground man climbs as well
d.Person on the ground takes up slack in the rescue rope and controls the rate of descent of the
victim - answer✔D
What is the purpose of Preventative Maintenance in SMS?


a.Show upgrade requirements
b.Lengthen the life-cycle of assets
c.Distribute work down to the local shop level

d.Condition personnel to complete annual inspections - answer✔B
What can happen if a toxic environment is not removed from a confined space before or during
work?


a.Toxic environments have little to no effect on the attendant

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