Mechanical & Electrical Study Guide
Questions and Verified Answers
Electrical Current answer - A flow of electric charge through a medium/conductor. Charge
carried by electrons, but whose direction is defined by positive charged particles, which are
opposite electrons.
Conductor/Medium answer - carries electrical current from the source to the load without
providing too much resistance to current flow. eg: Wires, Power-lines
Insulators answer - materials that resist the flow of electricity.
Semiconductors answer - materials that are neither good conductors nor good insulators.
Electric Circuit answer - a continuous path along which an electric current can flow.
Units Used To Describe Electricity answer - Voltage (volts), Amperage (amps), Ohms
Ampere answer - A unit of electrical current. One ampere is the electrical charge of one
Coulomb that flows in an electrical circuit in one second.
Ohms answer - A unit of electrical resistance where each resistor is defined by.
Electrical Power answer - Measured in watts, is the rate which electric energy is transferred by
an electric circuit. Formula is P = IV where P is the electric power, V is the potential difference,
and I is the electric current.
, Watt answer - A unit of electrical power and measures the consumed energy (joules) per unit
of time (second). 1W = 1 joule/1 second
What Is The Standard Billing For Energy Consumption answer - KiloWatt-Hour OR( kWh)
Power Source answer - A Battery or Generator
Load answer - an electrical component or group of components that consume electricity.
Examples: Kitchen appliances, Lamps, Lighting, Radios,
Computers, Television
Closed Circuit answer - an uninterrupted path that allows a continuous flow of current through
an electrical circuit.
Open Circuit answer - Occurs when the path of the current flow of electricity is interrupted
(such as if the switch in a circuit is opened/turned off).
Short Circuit answer - Occurs when an unintended shortcut develops in a circuit that permits
current flow through an unintentional path.
Series Circuit answer - the current passes through Each Component in the circuit Without
Branching off to Individual Components in the circuit. Example: If one lamp goes out, the circuit
becomes open and all lamps go out.
Parallel Circuit answer - The current branches off to Individual Components in the circuit.
Example: If one lamp fails, the circuit remains closed and all other lamps remain lit.
Questions and Verified Answers
Electrical Current answer - A flow of electric charge through a medium/conductor. Charge
carried by electrons, but whose direction is defined by positive charged particles, which are
opposite electrons.
Conductor/Medium answer - carries electrical current from the source to the load without
providing too much resistance to current flow. eg: Wires, Power-lines
Insulators answer - materials that resist the flow of electricity.
Semiconductors answer - materials that are neither good conductors nor good insulators.
Electric Circuit answer - a continuous path along which an electric current can flow.
Units Used To Describe Electricity answer - Voltage (volts), Amperage (amps), Ohms
Ampere answer - A unit of electrical current. One ampere is the electrical charge of one
Coulomb that flows in an electrical circuit in one second.
Ohms answer - A unit of electrical resistance where each resistor is defined by.
Electrical Power answer - Measured in watts, is the rate which electric energy is transferred by
an electric circuit. Formula is P = IV where P is the electric power, V is the potential difference,
and I is the electric current.
, Watt answer - A unit of electrical power and measures the consumed energy (joules) per unit
of time (second). 1W = 1 joule/1 second
What Is The Standard Billing For Energy Consumption answer - KiloWatt-Hour OR( kWh)
Power Source answer - A Battery or Generator
Load answer - an electrical component or group of components that consume electricity.
Examples: Kitchen appliances, Lamps, Lighting, Radios,
Computers, Television
Closed Circuit answer - an uninterrupted path that allows a continuous flow of current through
an electrical circuit.
Open Circuit answer - Occurs when the path of the current flow of electricity is interrupted
(such as if the switch in a circuit is opened/turned off).
Short Circuit answer - Occurs when an unintended shortcut develops in a circuit that permits
current flow through an unintentional path.
Series Circuit answer - the current passes through Each Component in the circuit Without
Branching off to Individual Components in the circuit. Example: If one lamp goes out, the circuit
becomes open and all lamps go out.
Parallel Circuit answer - The current branches off to Individual Components in the circuit.
Example: If one lamp fails, the circuit remains closed and all other lamps remain lit.
