NLC Electrical Grid Study Questions with
100% Solutions
Voltage is - ✅✅ the force that pushes electrons through a load.
Voltage drop - ✅✅ this value requires a certain amount of voltage to push a
given current through a given amount of resistance.
Series Circuit Voltage Drops - ✅✅ voltage will drop across each resistance that
is connected to the circuit, and less voltage will be available to push the current
through the next load. By the last time the current flows through the last load
connected to the circuit, all voltage is used up.
The sum of all the voltage drops across all resisters must __________ the voltage
applied to the series circuit - ✅✅ equal
Power lines are considered to __________ ____ ________ because of the
equipment that is connected in series with the line: however, the layout is
predominantly ________. - ✅✅ combination type circuits, parallel.
The overall power system can be broken down into several _______________
circuits - ✅✅ Parallel
Each section of the overall power system can be? - ✅✅ considered as having its
own source, conductors, and loads.
, Sub transmission substations are? - ✅✅ parallel to the transmission line
Parallel circuits are distinguished by the - ✅✅ fact that the electrical values seen
by source are dependent on the individual loads.
By adding more load (another substation) - ✅✅ current flow on transmission
line will increase and the source will supply more power.
Electrical circuits require several key elements to function properly. - ✅✅ 1.
Source of electrical pressure (voltage). Pushes electrons through conductor.
2. Conductors, which are necessary to transmit energy to the point where it will be
used.
3. Load, is a device that uses the electrical energy from a source to accomplish a
useful purpose.
Open circuit - ✅✅ an incomplete electrical circuit in which no current flows
Load will limit? - ✅✅ the amount of current that can flow through a conductor
by providing resistance
Short circuit - ✅✅ A circuit that does not have load, or in which the load has
been bypassed.
Fuse - ✅✅ An intentionally weakened point in a circuit that burns open when
current flow is excessive
This is how circuits are protected from short circuits.
100% Solutions
Voltage is - ✅✅ the force that pushes electrons through a load.
Voltage drop - ✅✅ this value requires a certain amount of voltage to push a
given current through a given amount of resistance.
Series Circuit Voltage Drops - ✅✅ voltage will drop across each resistance that
is connected to the circuit, and less voltage will be available to push the current
through the next load. By the last time the current flows through the last load
connected to the circuit, all voltage is used up.
The sum of all the voltage drops across all resisters must __________ the voltage
applied to the series circuit - ✅✅ equal
Power lines are considered to __________ ____ ________ because of the
equipment that is connected in series with the line: however, the layout is
predominantly ________. - ✅✅ combination type circuits, parallel.
The overall power system can be broken down into several _______________
circuits - ✅✅ Parallel
Each section of the overall power system can be? - ✅✅ considered as having its
own source, conductors, and loads.
, Sub transmission substations are? - ✅✅ parallel to the transmission line
Parallel circuits are distinguished by the - ✅✅ fact that the electrical values seen
by source are dependent on the individual loads.
By adding more load (another substation) - ✅✅ current flow on transmission
line will increase and the source will supply more power.
Electrical circuits require several key elements to function properly. - ✅✅ 1.
Source of electrical pressure (voltage). Pushes electrons through conductor.
2. Conductors, which are necessary to transmit energy to the point where it will be
used.
3. Load, is a device that uses the electrical energy from a source to accomplish a
useful purpose.
Open circuit - ✅✅ an incomplete electrical circuit in which no current flows
Load will limit? - ✅✅ the amount of current that can flow through a conductor
by providing resistance
Short circuit - ✅✅ A circuit that does not have load, or in which the load has
been bypassed.
Fuse - ✅✅ An intentionally weakened point in a circuit that burns open when
current flow is excessive
This is how circuits are protected from short circuits.
