MICHELIN ECT FULL COURSE REVIEW
EXAM QUESTIONS AND ANSWERS 2026
VERIFIED.
Inductor (L) - ANS A device that opposes a change in current
Inductance (L) - ANS The characteristic of an electrical conductor which opposes a CHANGE in
current flow The measure of a coils ability to oppose a change in current, measured in henrys
Inductive Reactance (Xl) - ANS The opposition to the flow of alternating current caused by
the inductance of a circuit, measured in ohms
Impedance (Z) - ANS The total opposition to current flow in an AC circuit. It is the vector sum
of resistance and reactance, measured in ohms.
Henry (h) - ANS The unit of measure for inductance
Formula for Real Power (P) - ANS V x I x cos (-) = Watts
Formula for Reactive Power (Q) - ANS V x I x sin (-)= VARS
Apparent Power (S) - ANS V x I = VA
@2026/2027 ALLRIGHTS RESERVED.
,Formula for Power Factor (PF) - ANS cos (-)
What determines the strength of a magnetic field? - ANS 1. The number of turns in the coil
2. The material of the conductor
3. The amount of current flow through the conductor
4. The ratio of the coil's width to its length
What is "solenoid action?" - ANS The movement of the core in response to the magnetic pull
of the coil
What is AC Voltage? - ANS A.C. voltage is one that continually changes in magnitude and
periodically reverses in polarity.
V-Instantaneous Formula - ANS Vi= Vmax x sin (-)
Vrms Formula - ANS Vrms= Vmax x .707
Imax formula - ANS Imax= Irms/.707
Formula for frequency - ANS f= 1/T
T= time to complete one 360 degree cycle in seconds
What do GREEN wires with or without YELLOW stripes signify? - ANS equipment grounding
conductors
@2026/2027 ALLRIGHTS RESERVED.
, What do WHITE wires signify? - ANS AC grounded conductor
What do WHITE wires with BLUE STRIPES signify? - ANS DC grounded conductors
What do ORANGE or YELLOW wires signify? - ANS wires that remain energized after the
machine is disconnected from power. (externally powered)
What COLOR and TYPE of pushbutton will Stop Buttons be? - ANS Red
Raised or unguarded type.
What COLOR and TYPE of pushbutton will Start buttons be? - ANS Black
Fully guarded type
What type of button will E-stops be? - ANS lock-off (détente) self-latching mushroom
operator type.
WHERE will all pushbuttons be installed with relation to their associated stop buttons? -
ANS above or to the left
Conductors shall NOT be smaller than... - ANS Power circuits #14 AWG.
Control circuits #16 AWG.
@2026/2027 ALLRIGHTS RESERVED.
EXAM QUESTIONS AND ANSWERS 2026
VERIFIED.
Inductor (L) - ANS A device that opposes a change in current
Inductance (L) - ANS The characteristic of an electrical conductor which opposes a CHANGE in
current flow The measure of a coils ability to oppose a change in current, measured in henrys
Inductive Reactance (Xl) - ANS The opposition to the flow of alternating current caused by
the inductance of a circuit, measured in ohms
Impedance (Z) - ANS The total opposition to current flow in an AC circuit. It is the vector sum
of resistance and reactance, measured in ohms.
Henry (h) - ANS The unit of measure for inductance
Formula for Real Power (P) - ANS V x I x cos (-) = Watts
Formula for Reactive Power (Q) - ANS V x I x sin (-)= VARS
Apparent Power (S) - ANS V x I = VA
@2026/2027 ALLRIGHTS RESERVED.
,Formula for Power Factor (PF) - ANS cos (-)
What determines the strength of a magnetic field? - ANS 1. The number of turns in the coil
2. The material of the conductor
3. The amount of current flow through the conductor
4. The ratio of the coil's width to its length
What is "solenoid action?" - ANS The movement of the core in response to the magnetic pull
of the coil
What is AC Voltage? - ANS A.C. voltage is one that continually changes in magnitude and
periodically reverses in polarity.
V-Instantaneous Formula - ANS Vi= Vmax x sin (-)
Vrms Formula - ANS Vrms= Vmax x .707
Imax formula - ANS Imax= Irms/.707
Formula for frequency - ANS f= 1/T
T= time to complete one 360 degree cycle in seconds
What do GREEN wires with or without YELLOW stripes signify? - ANS equipment grounding
conductors
@2026/2027 ALLRIGHTS RESERVED.
, What do WHITE wires signify? - ANS AC grounded conductor
What do WHITE wires with BLUE STRIPES signify? - ANS DC grounded conductors
What do ORANGE or YELLOW wires signify? - ANS wires that remain energized after the
machine is disconnected from power. (externally powered)
What COLOR and TYPE of pushbutton will Stop Buttons be? - ANS Red
Raised or unguarded type.
What COLOR and TYPE of pushbutton will Start buttons be? - ANS Black
Fully guarded type
What type of button will E-stops be? - ANS lock-off (détente) self-latching mushroom
operator type.
WHERE will all pushbuttons be installed with relation to their associated stop buttons? -
ANS above or to the left
Conductors shall NOT be smaller than... - ANS Power circuits #14 AWG.
Control circuits #16 AWG.
@2026/2027 ALLRIGHTS RESERVED.
