Electrical Apprenticeship 3b Exam
Questions and Answers
power source - correct Answer-A device that converts various forms of energy into
electricity
action - correct Answer-In most cases it's the operating coil in the circuit that is
responsible for initiating the....
Two - correct Answer-A fork lever actuator is operated by one of how many roller arms
Five - correct Answer-All electrical circuits include how many basic components?
Truth table - correct Answer-A table made and positioned near the switch to illustrate
each position and each contact
A block diagram - correct Answer-A diagram who's primary function is to show how the
distinct parts of a system relate
Mechanical - correct Answer-_________Level switches use a float that moves up and
down with the level of the liquid and activates electrical contacts at a set height
An operator - correct Answer-The device that is pressed, pulled, or rotated by the
individual operating the circuit
Conductive probe level switch - correct Answer-A level switch that uses liquid to
complete the electrical path between two conductive probes
rises - correct Answer-as the ambient temperature ________ in a cooling system, the
switch contacts close and turn on a cooling device
Level switch - correct Answer-A switch that detects the height of a liquid or solid inside a
tank
Capacitive level switch - correct Answer-detects the dielectric variation when a product
is in contact with the probe and when the product is not in contact with the probe
Troubleshooting - correct Answer-the systematic elimination of various parts of a
system, circuit, or process to locate a malfunctioning part.
, Abbreviation - correct Answer-A letter or combination of letters that represents a word
A dead short - correct Answer-a short circuit that opens the circuit as soon as the circuit
is energized or when the section of the circuit containing the short is energized
Dot - correct Answer-line diagrams may us a(n)_______ to indicate which joystick
position will operate the contacts
Air compression - correct Answer-A system that is not a common application of
temperature switches
Rotated - correct Answer-A selector switch is ______ to activate the electrical contacts
Schematic - correct Answer-diagrams are intended to show the circuitry that is
necessary for the basic operation of a device
A joystick - correct Answer-is an operator that selects one to eight different circuit
conditions when it is shifted from its center position
Wiring diagram - correct Answer-A diagram that shows the connection of all
components in a piece of equipment.
Piston sensing - correct Answer-devices are used for high pressure applications
AND - correct Answer-logic is used in industry when two NO push buttons are
connected in series to control a solenoid
relatively simple - correct Answer-The dashed line method works well when the control
contacts are close together and the circuit is relatively_______
most flow switches - correct Answer-use a paddle to detect the movement of a product
Random - correct Answer-is not a signal condition
underlined - correct Answer-to differentiate between NO and NC contacts, NC contacts
are indicated as a number that is_____
Hoist - correct Answer-The most common application of a joystick is in controlling a
_______
Overcurrent protection device (ocpd) - correct Answer-a disconnect switch with circuit
breakers or fuses added to provide over current protection for the switched circuit
Printreading - correct Answer-involves identifying an electrical symbol, understanding
where the component is located within a system, and understanding how it is used.
Questions and Answers
power source - correct Answer-A device that converts various forms of energy into
electricity
action - correct Answer-In most cases it's the operating coil in the circuit that is
responsible for initiating the....
Two - correct Answer-A fork lever actuator is operated by one of how many roller arms
Five - correct Answer-All electrical circuits include how many basic components?
Truth table - correct Answer-A table made and positioned near the switch to illustrate
each position and each contact
A block diagram - correct Answer-A diagram who's primary function is to show how the
distinct parts of a system relate
Mechanical - correct Answer-_________Level switches use a float that moves up and
down with the level of the liquid and activates electrical contacts at a set height
An operator - correct Answer-The device that is pressed, pulled, or rotated by the
individual operating the circuit
Conductive probe level switch - correct Answer-A level switch that uses liquid to
complete the electrical path between two conductive probes
rises - correct Answer-as the ambient temperature ________ in a cooling system, the
switch contacts close and turn on a cooling device
Level switch - correct Answer-A switch that detects the height of a liquid or solid inside a
tank
Capacitive level switch - correct Answer-detects the dielectric variation when a product
is in contact with the probe and when the product is not in contact with the probe
Troubleshooting - correct Answer-the systematic elimination of various parts of a
system, circuit, or process to locate a malfunctioning part.
, Abbreviation - correct Answer-A letter or combination of letters that represents a word
A dead short - correct Answer-a short circuit that opens the circuit as soon as the circuit
is energized or when the section of the circuit containing the short is energized
Dot - correct Answer-line diagrams may us a(n)_______ to indicate which joystick
position will operate the contacts
Air compression - correct Answer-A system that is not a common application of
temperature switches
Rotated - correct Answer-A selector switch is ______ to activate the electrical contacts
Schematic - correct Answer-diagrams are intended to show the circuitry that is
necessary for the basic operation of a device
A joystick - correct Answer-is an operator that selects one to eight different circuit
conditions when it is shifted from its center position
Wiring diagram - correct Answer-A diagram that shows the connection of all
components in a piece of equipment.
Piston sensing - correct Answer-devices are used for high pressure applications
AND - correct Answer-logic is used in industry when two NO push buttons are
connected in series to control a solenoid
relatively simple - correct Answer-The dashed line method works well when the control
contacts are close together and the circuit is relatively_______
most flow switches - correct Answer-use a paddle to detect the movement of a product
Random - correct Answer-is not a signal condition
underlined - correct Answer-to differentiate between NO and NC contacts, NC contacts
are indicated as a number that is_____
Hoist - correct Answer-The most common application of a joystick is in controlling a
_______
Overcurrent protection device (ocpd) - correct Answer-a disconnect switch with circuit
breakers or fuses added to provide over current protection for the switched circuit
Printreading - correct Answer-involves identifying an electrical symbol, understanding
where the component is located within a system, and understanding how it is used.
