PMMI INDUSTRIAL ELECTRICAL I
STUDY HELP EXAM QUESTIONS AND
ANSWERS 2026 VERIFIED.
Electrical circuit components - ANS Power supply, input device, output device, conductor
Input devices - ANS switches and contacts
output devices - ANS lamp, resistor, buzzer, solenoid, motor
closed circuit - ANS complete path for current flow from the positive to the negative terminal
of the power source
open circuit - ANS broken path with no current flow between the terminals of the power
source
3-phase Wye System with a neutral - ANS This system has phase-to-phase voltage of 480VAC
and phase-to-neutral voltage of 277VAC
voltage - ANS In a ladder logic control circuit, the signal measured is usually ___________
@2026/2027 ALLRIGHTS RESERVED.
, Melting alloy - ANS What type of overload is tamper-proof by design?
Push to test pilot light - ANS Used to indicate unsafe conditions that do not occur frequently
Conductor ampacity - ANS Determined by the cross-sectional area of the conductor
Ampacity - ANS The maximum current (amperes) that a conductor can carry continuously
under the conditions of use without exceeding its temperature rating
Electrical ladder diagram - ANS This diagram depicts the electrical interconnections of the
components in a system
Voltage (V or E) - ANS Electromotive force/potential difference
Current (I) - ANS the flow of electrons through a conductor in amperes
Resistance (R) - ANS The opposition of current flow measured in ohms
Continuity - ANS Low or no resistance path
Series circuit - ANS A circuit in which all parts are connected end to end to provide a single
path of current.
Parallel circuit - ANS A closed electrical circuit in which the current is divided into two or
more paths and then returns via a common path to complete the circuit.
@2026/2027 ALLRIGHTS RESERVED.
STUDY HELP EXAM QUESTIONS AND
ANSWERS 2026 VERIFIED.
Electrical circuit components - ANS Power supply, input device, output device, conductor
Input devices - ANS switches and contacts
output devices - ANS lamp, resistor, buzzer, solenoid, motor
closed circuit - ANS complete path for current flow from the positive to the negative terminal
of the power source
open circuit - ANS broken path with no current flow between the terminals of the power
source
3-phase Wye System with a neutral - ANS This system has phase-to-phase voltage of 480VAC
and phase-to-neutral voltage of 277VAC
voltage - ANS In a ladder logic control circuit, the signal measured is usually ___________
@2026/2027 ALLRIGHTS RESERVED.
, Melting alloy - ANS What type of overload is tamper-proof by design?
Push to test pilot light - ANS Used to indicate unsafe conditions that do not occur frequently
Conductor ampacity - ANS Determined by the cross-sectional area of the conductor
Ampacity - ANS The maximum current (amperes) that a conductor can carry continuously
under the conditions of use without exceeding its temperature rating
Electrical ladder diagram - ANS This diagram depicts the electrical interconnections of the
components in a system
Voltage (V or E) - ANS Electromotive force/potential difference
Current (I) - ANS the flow of electrons through a conductor in amperes
Resistance (R) - ANS The opposition of current flow measured in ohms
Continuity - ANS Low or no resistance path
Series circuit - ANS A circuit in which all parts are connected end to end to provide a single
path of current.
Parallel circuit - ANS A closed electrical circuit in which the current is divided into two or
more paths and then returns via a common path to complete the circuit.
@2026/2027 ALLRIGHTS RESERVED.
