SACA C-202 Electric Motor Control Systems
Exam Questions and Answers (2026) | Updated
Review with Explanations | Grade A+
• What is the purpose of grounding equipment? Answer: To prevent connecting
metal parts that aren't meant to carry current from being charged.
• When a metal part is not grounded, what could the operator risk. Answer: The
operator could risk shock, or the voltage in the metal object discharging through
them.
• What is the purpose of the National Electrical Code? Answer: The National
Electrical Code creates electrical system codes and laws to protect systems and
operators.
• What is the purpose of the National Electrical Manufacturer's Association?
Answer: To create laws and codes on how to manage an electrical motor.
• True or False: It is encouraged to work with one hand while working with an
electrical system. Answer: True! Working with one hand reduces the risk of
electrical shock and allows an operator to disengage quickly.
• Define Lockout/Tagout. Answer: A lockout/tagout is an item used to prevent the
powering or energizing a system while a person works on it.
• 3-phase motors have alternators placed every: Answer: 120 degrees.
• Define Wye-Configuration. Answer: The windings of a motor is connected by a
single winding: in the middle. This leads to the Y-shaped windings.
, • Define Delta-Configuration. Answer: The windings of a motors is connected end-
to-end, leadinging to a triangle-shaped windings.
• Define a disconnect. Answer: A disconnect is manual input that shuts off a
system to prevent discharge or shorts.
• True or False: a fusible disconnect is not a safe protective device. Answer: False!
A fusible disconnect is a very safe protective device, as it opens the circuit during a
short.
• What is a circuit breaker? Answer: A circuit breaker is a resetable system that can
automatically open a circuit manually, magnetically, or thermally.
• True or False: A fuse is cheaper and simpler than a circuit breaker. Answer: True!
A fuse is easy to plug in and cheap, but needs to be replaced after opened.
• What is the rated full-load current? Answer: The rated full-load current is the
current level a motor is able to steadily run at.
• The overcurrent fuse must be what percentage of the full-load current? Answer:
The overcurrent fuse must be 125% of the full-load current.
(Ex. 25A * 125% = 31.25A)
• What is conductor ampacity? Answer: Conductor ampacity is the maximum
current a conductor can carry.
• What is a motor's Service Factor? Answer: The service factor is the output
voltage of a motor.
Exam Questions and Answers (2026) | Updated
Review with Explanations | Grade A+
• What is the purpose of grounding equipment? Answer: To prevent connecting
metal parts that aren't meant to carry current from being charged.
• When a metal part is not grounded, what could the operator risk. Answer: The
operator could risk shock, or the voltage in the metal object discharging through
them.
• What is the purpose of the National Electrical Code? Answer: The National
Electrical Code creates electrical system codes and laws to protect systems and
operators.
• What is the purpose of the National Electrical Manufacturer's Association?
Answer: To create laws and codes on how to manage an electrical motor.
• True or False: It is encouraged to work with one hand while working with an
electrical system. Answer: True! Working with one hand reduces the risk of
electrical shock and allows an operator to disengage quickly.
• Define Lockout/Tagout. Answer: A lockout/tagout is an item used to prevent the
powering or energizing a system while a person works on it.
• 3-phase motors have alternators placed every: Answer: 120 degrees.
• Define Wye-Configuration. Answer: The windings of a motor is connected by a
single winding: in the middle. This leads to the Y-shaped windings.
, • Define Delta-Configuration. Answer: The windings of a motors is connected end-
to-end, leadinging to a triangle-shaped windings.
• Define a disconnect. Answer: A disconnect is manual input that shuts off a
system to prevent discharge or shorts.
• True or False: a fusible disconnect is not a safe protective device. Answer: False!
A fusible disconnect is a very safe protective device, as it opens the circuit during a
short.
• What is a circuit breaker? Answer: A circuit breaker is a resetable system that can
automatically open a circuit manually, magnetically, or thermally.
• True or False: A fuse is cheaper and simpler than a circuit breaker. Answer: True!
A fuse is easy to plug in and cheap, but needs to be replaced after opened.
• What is the rated full-load current? Answer: The rated full-load current is the
current level a motor is able to steadily run at.
• The overcurrent fuse must be what percentage of the full-load current? Answer:
The overcurrent fuse must be 125% of the full-load current.
(Ex. 25A * 125% = 31.25A)
• What is conductor ampacity? Answer: Conductor ampacity is the maximum
current a conductor can carry.
• What is a motor's Service Factor? Answer: The service factor is the output
voltage of a motor.
