NOCTI MECHATRONICS 2024 EXAM PREP
QUESTIONS AND COMPLETE SOLUTIONS
◉ What is the first step before beginning any electrical work?
Answer: Turn off power
◉ What should you inspect for before beginning electrical work?
Answer: Damage
◉ What is a multimeter? Answer: Tool to measure electrical
properties
◉ What is continuity testing? Answer: Checking if circuit is complete
or broken
◉ What should you test for with the power on? Answer: Voltage
◉ What should you check for in the wiring? Answer: Loose
connections or damaged insulation
◉ What should you do with damaged components? Answer: Replace
them
,◉ What should you align with one side of the angle when measuring
angles? Answer: Base of the protractor
◉ How do you check if a surface is square? Answer: Use a square
and check if both edges are flush
◉ What is a level? Answer: A tool used to check for levelness.
◉ What is a plumb? Answer: A tool used to check for verticality.
◉ How do you use a plumb? Answer: Observe which way it hangs.
◉ How do you adjust a surface using a plumb? Answer: Hold the
plumb line against the surface you want to check for verticality.
◉ Allow the plumb line to hang freely and observe which way it
hangs. Answer: Adjust the surface until the plumb line is hanging
directly over the center of the mark you want to measure.
◉ What is a circuit? Answer: A closed path for electricity.
◉ What is voltage? Answer: Electric potential energy per unit
charge.
, ◉ What is current? Answer: Flow of electric charge in a circuit.
◉ What is resistance? Answer: Opposition to flow of electric current.
◉ What is Ohm's Law? Answer: I = V/R; current is proportional to
voltage and inversely proportional to resistance.
◉ What is a series circuit? Answer: Components connected end-to-
end.
◉ What is a parallel circuit? Answer: Components connected side-
by-side.
◉ What is ground? Answer: Point in circuit with zero voltage.
◉ What is a short circuit? Answer: Low-resistance path causing
large current flow.
◉ What is an open circuit? Answer: Break in path of current.
◉ What are toggle switches? Answer: Switches with a lever for
on/off.
QUESTIONS AND COMPLETE SOLUTIONS
◉ What is the first step before beginning any electrical work?
Answer: Turn off power
◉ What should you inspect for before beginning electrical work?
Answer: Damage
◉ What is a multimeter? Answer: Tool to measure electrical
properties
◉ What is continuity testing? Answer: Checking if circuit is complete
or broken
◉ What should you test for with the power on? Answer: Voltage
◉ What should you check for in the wiring? Answer: Loose
connections or damaged insulation
◉ What should you do with damaged components? Answer: Replace
them
,◉ What should you align with one side of the angle when measuring
angles? Answer: Base of the protractor
◉ How do you check if a surface is square? Answer: Use a square
and check if both edges are flush
◉ What is a level? Answer: A tool used to check for levelness.
◉ What is a plumb? Answer: A tool used to check for verticality.
◉ How do you use a plumb? Answer: Observe which way it hangs.
◉ How do you adjust a surface using a plumb? Answer: Hold the
plumb line against the surface you want to check for verticality.
◉ Allow the plumb line to hang freely and observe which way it
hangs. Answer: Adjust the surface until the plumb line is hanging
directly over the center of the mark you want to measure.
◉ What is a circuit? Answer: A closed path for electricity.
◉ What is voltage? Answer: Electric potential energy per unit
charge.
, ◉ What is current? Answer: Flow of electric charge in a circuit.
◉ What is resistance? Answer: Opposition to flow of electric current.
◉ What is Ohm's Law? Answer: I = V/R; current is proportional to
voltage and inversely proportional to resistance.
◉ What is a series circuit? Answer: Components connected end-to-
end.
◉ What is a parallel circuit? Answer: Components connected side-
by-side.
◉ What is ground? Answer: Point in circuit with zero voltage.
◉ What is a short circuit? Answer: Low-resistance path causing
large current flow.
◉ What is an open circuit? Answer: Break in path of current.
◉ What are toggle switches? Answer: Switches with a lever for
on/off.
