SACA C-202 Electric Motor Control Systems
Updated Questions and Answers (2026/2027) |
Practice Review | A+ Verified
• When a metal part is not grounded, what could the operator risk. CORRECT
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? CORRECT 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? CORRECT
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. CORRECT ANSWER: True! Working with one hand reduces the risk of
electrical shock and allows an operator to disengage quickly.
• Define Lockout/Tagout. CORRECT 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: CORRECT ANSWER: 120 degrees.
• Define Wye-Configuration. CORRECT 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. CORRECT ANSWER: The windings of a motors is
connected end-to-end, leadinging to a triangle-shaped windings.
• Define a disconnect. CORRECT 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. CORRECT
ANSWER: False! A fusible disconnect is a very safe protective device, as it opens the
circuit during a short.
• What is a circuit breaker? CORRECT 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. CORRECT
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? CORRECT 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? CORRECT
ANSWER: The overcurrent fuse must be 125% of the full-load current.
(Ex. 25A * 125% = 31.25A)
• What is conductor ampacity? CORRECT ANSWER: Conductor ampacity is the
maximum current a conductor can carry.
• What is a motor's Service Factor? CORRECT ANSWER: The service factor is the
output voltage of a motor.
• List the 5 types of motor control functions. CORRECT ANSWER: Start/stop systems,
motor & control protection, speed control, jogging, and reversing.
• What is overload protection? CORRECT ANSWER: Overload protection prevents a
circuit from overloading, usually by opening the circuit when an overload could occur.
• What is the difference between a manual and magnetic motor starter? CORRECT
ANSWER: A manual starter recieves a direct input from an operator, while a magnetic
motor starter recieves a remote input.
• Why do most facilities use a magnetic motor starter over a manual one? CORRECT
ANSWER: A magnetic motor starter protects the operator from discharges or intentional
operation by allowing remote control.
• What are the three different classifications of electrical control systems? CORRECT
ANSWER: Manual control, automatic control, and semi-automatic control.
• What is a manual electrical control system? CORRECT ANSWER: A manual
electrical control system is a system that is manually controlled by an operator.
• What is the sequence of operation? CORRECT ANSWER: The act of a machine
moving to complete actions in a specified order.
• What is logic in electrical engineering? CORRECT ANSWER: Logic is an action an
electical system makes based on an input.
• What are the six logic elements of a logical control ciruit? CORRECT ANSWER: AND,
OR, NOT, NAND, NOR, and memory.
• What input layout is the same as a NOT input? CORRECT ANSWER: A normally
closed (NC) input device.
Updated Questions and Answers (2026/2027) |
Practice Review | A+ Verified
• When a metal part is not grounded, what could the operator risk. CORRECT
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? CORRECT 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? CORRECT
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. CORRECT ANSWER: True! Working with one hand reduces the risk of
electrical shock and allows an operator to disengage quickly.
• Define Lockout/Tagout. CORRECT 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: CORRECT ANSWER: 120 degrees.
• Define Wye-Configuration. CORRECT 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. CORRECT ANSWER: The windings of a motors is
connected end-to-end, leadinging to a triangle-shaped windings.
• Define a disconnect. CORRECT 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. CORRECT
ANSWER: False! A fusible disconnect is a very safe protective device, as it opens the
circuit during a short.
• What is a circuit breaker? CORRECT 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. CORRECT
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? CORRECT 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? CORRECT
ANSWER: The overcurrent fuse must be 125% of the full-load current.
(Ex. 25A * 125% = 31.25A)
• What is conductor ampacity? CORRECT ANSWER: Conductor ampacity is the
maximum current a conductor can carry.
• What is a motor's Service Factor? CORRECT ANSWER: The service factor is the
output voltage of a motor.
• List the 5 types of motor control functions. CORRECT ANSWER: Start/stop systems,
motor & control protection, speed control, jogging, and reversing.
• What is overload protection? CORRECT ANSWER: Overload protection prevents a
circuit from overloading, usually by opening the circuit when an overload could occur.
• What is the difference between a manual and magnetic motor starter? CORRECT
ANSWER: A manual starter recieves a direct input from an operator, while a magnetic
motor starter recieves a remote input.
• Why do most facilities use a magnetic motor starter over a manual one? CORRECT
ANSWER: A magnetic motor starter protects the operator from discharges or intentional
operation by allowing remote control.
• What are the three different classifications of electrical control systems? CORRECT
ANSWER: Manual control, automatic control, and semi-automatic control.
• What is a manual electrical control system? CORRECT ANSWER: A manual
electrical control system is a system that is manually controlled by an operator.
• What is the sequence of operation? CORRECT ANSWER: The act of a machine
moving to complete actions in a specified order.
• What is logic in electrical engineering? CORRECT ANSWER: Logic is an action an
electical system makes based on an input.
• What are the six logic elements of a logical control ciruit? CORRECT ANSWER: AND,
OR, NOT, NAND, NOR, and memory.
• What input layout is the same as a NOT input? CORRECT ANSWER: A normally
closed (NC) input device.
