Industrial Maintenance Final Exam Review
questions and answers 2025\2026 A+ Grade
alternating
- correct answer ____ current is current that reverses its direction of flow at regular intervals.
voltage
- correct answer ____ is the amount of electrical pressure that causes electrons to move in a circuit.
amperes
- correct answer Current is measured in ____.
OCPD
- correct answer A(n) ____ is a device that automatically opens a circuit to prevent damage from a high-
current condition.
contact
- correct answer A(n) ____ is the conducting part of a switch that operates with another conducting part
to complete (close) or break (open) a circuit.
relay
- correct answer A(n) ____ is an electrical switch that is actuated by a separate circuit.
open
- correct answer A(n) ____ circuit is a circuit having an incomplete path, which prevents current flow.
resistance
- correct answer ____ is the opposition to the flow of electrons.
, conductor
- correct answer A(n) ____ is a material that has little resistance and permits electrons to move through
it easily.
arcing
- correct answer ____ is the discharge of an electric current across a gap.
short
- correct answer A(n) ____ circuit is an undesirable, low-resistance path for current to leave the normal
current-carrying path through a load.
series
- correct answer A(n) ____ circuit is a circuit that has two or more components connected such that
there is only one path for current flow.
insulator
- correct answer ____ is a material that has a high resistance.
closed
- correct answer A(n) ____ circuit is a circuit having a complete path for current flow.
ground
- correct answer A(n) ____ circuit is a conducting connection between electrical equipment and the
earth.
evaporator
- correct answer A(n) ____ is a heat exchanger through which heat is transferred to the low-pressure
refrigerant liquid.
thermostat
- correct answer A(n) ____ is a temperature sensor inside a temperature-controlled space that sends
signals to a control system in order to maintain a set temperature.
questions and answers 2025\2026 A+ Grade
alternating
- correct answer ____ current is current that reverses its direction of flow at regular intervals.
voltage
- correct answer ____ is the amount of electrical pressure that causes electrons to move in a circuit.
amperes
- correct answer Current is measured in ____.
OCPD
- correct answer A(n) ____ is a device that automatically opens a circuit to prevent damage from a high-
current condition.
contact
- correct answer A(n) ____ is the conducting part of a switch that operates with another conducting part
to complete (close) or break (open) a circuit.
relay
- correct answer A(n) ____ is an electrical switch that is actuated by a separate circuit.
open
- correct answer A(n) ____ circuit is a circuit having an incomplete path, which prevents current flow.
resistance
- correct answer ____ is the opposition to the flow of electrons.
, conductor
- correct answer A(n) ____ is a material that has little resistance and permits electrons to move through
it easily.
arcing
- correct answer ____ is the discharge of an electric current across a gap.
short
- correct answer A(n) ____ circuit is an undesirable, low-resistance path for current to leave the normal
current-carrying path through a load.
series
- correct answer A(n) ____ circuit is a circuit that has two or more components connected such that
there is only one path for current flow.
insulator
- correct answer ____ is a material that has a high resistance.
closed
- correct answer A(n) ____ circuit is a circuit having a complete path for current flow.
ground
- correct answer A(n) ____ circuit is a conducting connection between electrical equipment and the
earth.
evaporator
- correct answer A(n) ____ is a heat exchanger through which heat is transferred to the low-pressure
refrigerant liquid.
thermostat
- correct answer A(n) ____ is a temperature sensor inside a temperature-controlled space that sends
signals to a control system in order to maintain a set temperature.
