Question 1

The unit of electrical current is the ____.
A) ampere
B) volt
C) ohm
D) watt

Accepted Answer

The unit of electrical current is measured in amperes (A).

Question 2

In a(n) ____________________ circuit, there is only one path for current to flow.

Accepted Answer

series

Question 3

The grounded conductor is defined as one that is intentionally grounded or connected to earth.

Accepted Answer

The definition of the grounded conductor includes the fact that it is intentionally connected to earth.

Question 4

The National Electrical Code (NEC ) only defines electrical circuits that are required to be grounded.

Accepted Answer

The NEC defines grounding requirements not only for required electrical circuits, but also for optional ones, such as separately derived systems or isolated circuits.

Question 5

Soil resistivity is determined largely by its content of ____________________, which consist of moisture, minerals, and dissolved salts.

Accepted Answer

The answer of Soil resistivity is determined largely by its...

Question 6

The unit of electrical resistance in the circuit is known as the ampere.

Accepted Answer

The unit of electrical resistance in the circuit is known as the ohm, not ampere. The ampere is the unit of electric current.

Question 7

Which of the following formulas represents Ohm's law?
A) E (volts) = I (amperes) ÷ R (ohms)
B) E (volts) = I (amperes) - R (ohms)
C) E (volts) = I (amperes) + R (ohms)
D) E (volts) = I (amperes) × R (ohms)

Accepted Answer

Ohm's law states that the voltage (E) across a conductor is equal to the current (I) flowing through it multiplied by the resistance (R) of the conductor.

Question 8

A bonding ____ is a conductor, made of copper or aluminum, used to ensure electrical conductivity between metal parts that must be electrically connected.
A) electrode
B) shunter
C) jumper
D) transformer

Accepted Answer

A bonding jumper is a metallic conductor that is used to connect two or more metallic parts together, creating a safe electrical path. This helps to prevent electric shocks or sparks caused by the buildup of static electricity, galvanic corrosion, or other sources of electrical charge. Bonding jumpers are typically made of copper or aluminum, and are often used in electrical systems such as industrial machinery, power distribution systems, and telecommunications networks. Electrodes are typically used to gather data, shunters are typically used to measure electrical current, and transformers are used to convert electrical energy from one voltage to another.

Question 9

A ____ circuit is one in which there is more than one path for current to flow in.
A) neutral
B) parallel
C) series
D) resistive

Accepted Answer

In a parallel circuit, there are multiple branches for the current to flow through, unlike a series circuit where the current has to flow through each component in sequence.

Question 10

A grounding ____ is a conducting object through which a direct connection to earth is established.
A) conductor
B) jumper
C) electrode
D) generator

Accepted Answer

An electrode is a conducting object that is used to establish a direct connection to the earth. This connection is used to ground electrical circuits, equipment, and installations to protect against electrical faults and minimize the risk of electric shock or fire. Conductors and jumpers are also used in electrical systems, but they do not necessarily establish a connection to earth. A generator is a device that converts mechanical energy into electrical energy and is not directly related to grounding.

Quiz 9: Electrical Circuits and Grounding

The unit of electrical current is the ____.

In a(n) ____________________ circuit, there is only one path for current to flow.

The grounded conductor is defined as one that is intentionally grounded or connected to earth.

The National Electrical Code (NEC ) only defines electrical circuits that are required to be grounded.

Soil resistivity is determined largely by its content of ____________________, which consist of moisture, minerals, and dissolved salts.

The unit of electrical resistance in the circuit is known as the ampere.

Which of the following formulas represents Ohm's law?

A bonding ____ is a conductor, made of copper or aluminum, used to ensure electrical conductivity between metal parts that must be electrically connected.

A ____ circuit is one in which there is more than one path for current to flow in.

A grounding ____ is a conducting object through which a direct connection to earth is established.