NCCER Electrical level 2 Module 11
'Control systems and Fundamental
Concepts' 2025/2026 Exam Questions
and Verified Answers | Already Graded
A+
The maximum tungsten/infrared load amperage for a NEMA Size 0
magnetic contactor is ___. - 🧠 ANSWER ✔✔10A
A manual reversing starter uses ___. - 🧠 ANSWER ✔✔a mechanical
interlock
Mechanically held relays would most likely be used in a ___. - 🧠 ANSWER
✔✔hospital, auditoriums, churches
A single-contact device can be used to control multiple loads using a ___. -
🧠 ANSWER ✔✔multiple-pole relay
, A furnace might use an on delay to ___. - 🧠 ANSWER ✔✔avoid blowing
cold air into the space when the system starts up
A type of relay controlled by a magnetic field is a(n) ___. - 🧠 ANSWER
✔✔reed relay
A type of renewable overload device is a ___. - 🧠 ANSWER ✔✔melting
alloy relay
The operating coil of a relay is designed to work properly at ___. - 🧠
ANSWER ✔✔80% to 110% of the rated voltage
A device that allows relays to be controlled as a group while still allowing
individual switch control is a ___. - 🧠 ANSWER ✔✔master sequencer
Where low-voltage cable must be run parallel with high-voltage cable, it
should be separated by minimum of ___. - 🧠 ANSWER ✔✔6" (150mm)
The function of a shading coil in a contactor is to ___. - 🧠 ANSWER
✔✔prevent contact chatter and hum
What is the major difference between a contactor and a motor starter? - 🧠
ANSWER ✔✔The starter provides overload protection while a contactor
does not.
'Control systems and Fundamental
Concepts' 2025/2026 Exam Questions
and Verified Answers | Already Graded
A+
The maximum tungsten/infrared load amperage for a NEMA Size 0
magnetic contactor is ___. - 🧠 ANSWER ✔✔10A
A manual reversing starter uses ___. - 🧠 ANSWER ✔✔a mechanical
interlock
Mechanically held relays would most likely be used in a ___. - 🧠 ANSWER
✔✔hospital, auditoriums, churches
A single-contact device can be used to control multiple loads using a ___. -
🧠 ANSWER ✔✔multiple-pole relay
, A furnace might use an on delay to ___. - 🧠 ANSWER ✔✔avoid blowing
cold air into the space when the system starts up
A type of relay controlled by a magnetic field is a(n) ___. - 🧠 ANSWER
✔✔reed relay
A type of renewable overload device is a ___. - 🧠 ANSWER ✔✔melting
alloy relay
The operating coil of a relay is designed to work properly at ___. - 🧠
ANSWER ✔✔80% to 110% of the rated voltage
A device that allows relays to be controlled as a group while still allowing
individual switch control is a ___. - 🧠 ANSWER ✔✔master sequencer
Where low-voltage cable must be run parallel with high-voltage cable, it
should be separated by minimum of ___. - 🧠 ANSWER ✔✔6" (150mm)
The function of a shading coil in a contactor is to ___. - 🧠 ANSWER
✔✔prevent contact chatter and hum
What is the major difference between a contactor and a motor starter? - 🧠
ANSWER ✔✔The starter provides overload protection while a contactor
does not.
