Electrical Quiz Set B

Reviewed by Editorial Team

The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.

Learn about Our Editorial Process

| By Saklay_bamboo

Saklay_bamboo

Community Contributor

Quizzes Created: 6 | Total Attempts: 4,631

| Attempts: 689

Questions

Feedback

During the Quiz End of Quiz

Difficulty

Easy First Hard First Sequential

1/100 Questions

Connected to earth or to some conducting body that serves in place of the earth.
- Energized
- Exposed
- Grounded
- Bonded

About This Quiz

ELECTRICAL QUIZ SET B assesses understanding of key electrical concepts including electricity, electric charge, current, resistance, voltage, and electrical power. It's designed to enhance knowledge and skills in electromagnetism, crucial for academic and professional success in physics.

Quiz Preview

2.

The FLOW of electrons or electric charges in a circuit
- Current
- Voltage
- Electricity
- Resistance
Correct Answer

A. Current

Explanation

Current is the correct answer because it refers to the flow of electrons or electric charges in a circuit. It is the rate at which electric charges pass through a conductor, measured in amperes (A). Current is driven by a voltage source and is influenced by the resistance in the circuit. It is an essential concept in understanding and analyzing electrical circuits and is a fundamental property of electricity.

Rate this question:
3.

The OPPOSITION to the flow of electrons in a circuit
- Current
- Voltage
- Electricity
- Resistance
Correct Answer

A. Resistance

Explanation

Resistance is the correct answer because it refers to the opposition to the flow of electrons in a circuit. In simple terms, resistance is the property of a material or component that hinders the flow of electric current. It is measured in ohms and is responsible for reducing the current in a circuit. The higher the resistance, the lower the current flow, and vice versa.

Rate this question:

1
4.

To facilitate pulling
- UTILITY BOX
- CUT OUT BOX
- PULL BOX
- OUTLET BOX
Correct Answer

A. PULL BOX

Explanation

A "pull box" is a type of electrical box that is specifically designed to facilitate the pulling of wires or cables through it. It typically has a larger size and a removable cover, allowing easy access for pulling and routing wires. This type of box is commonly used in electrical installations where multiple wires or cables need to be pulled through long distances or complex pathways. The term "pull box" refers to its main function of making the wire pulling process more efficient and convenient.

Rate this question:
5.

Offers ground fault protection and improved ground fault coordination capability.
- Electronic rms Trip Breakers
- Thermal-Magnetic Breakers
- Arc Extinguishers
- Earth leakage circuit breakers
Correct Answer

A. Earth leakage circuit breakers

Explanation

Earth leakage circuit breakers offer ground fault protection and improved ground fault coordination capability. These breakers are designed to detect small leakage currents that occur when there is a fault in the electrical system, such as when a person accidentally touches a live wire. The breaker quickly detects the leakage current and trips to interrupt the circuit, preventing electric shock or fire hazards. Additionally, earth leakage circuit breakers have the ability to coordinate with other protective devices in the system, ensuring that the fault is isolated and cleared without affecting the rest of the circuit.

Rate this question:

1
6.

SAFETY is its top PRIORITY
- Electric Charge
- Electrical Power
- Electrical Energy
- Electrical Engineering
Correct Answer

A. Electrical Engineering

Explanation

The correct answer is Electrical Engineering. The phrase "SAFETY is its top PRIORITY" suggests that the subject being referred to is a field or discipline that places a high emphasis on safety. Among the given options, Electrical Engineering is a field that deals with the study and application of electricity, electronics, and electromagnetism, and safety is a crucial aspect of working with electrical systems. Therefore, Electrical Engineering aligns with the idea of safety being a top priority.

Rate this question:
7.

An electric current in one direction only having a magnitude that does not vary or varies only slightly.
- ARMATURE
- DIRECT CURRENT
- ALTERNATING CURRENT
- VOLT AMPERE
Correct Answer

A. DIRECT CURRENT

Explanation

Direct current refers to an electric current that flows in one direction only and has a constant magnitude, or varies only slightly. Unlike alternating current, which periodically changes direction, direct current maintains a steady flow of electrons in a single direction. This type of current is commonly used in batteries, electronic devices, and certain power transmission systems.

Rate this question:

1
8.

Switching device capable of making, carrying and breaking currents under normal condition, making currents at specified time, and/or breaking currents under specified abnormal circuit conditions, such as short circuits.
- Generator
- Circuit breaker
- Transformer
- Switchboard
Correct Answer

A. Circuit breaker

Explanation

A circuit breaker is a switching device that is capable of making, carrying, and breaking currents under normal conditions. It can also make currents at specified times and break currents under specified abnormal circuit conditions, such as short circuits.

Rate this question:
9.

An electric current that reverses direction at regularly recurring intervals, having a magnitude that varies in a sinusoidal manner.
- VOLT AMPERE
- DIRECT CURRENT
- ALTERNATING CURRENT
- ARMATURE
Correct Answer

A. ALTERNATING CURRENT

Explanation

Alternating current is the correct answer because it refers to an electric current that changes direction periodically and has a magnitude that varies in a sinusoidal manner. This type of current is commonly used in electrical power transmission and is represented by a waveform that oscillates between positive and negative values. Volt ampere, direct current, and armature are not suitable answers as they do not accurately describe the given definition.

Rate this question:
10.

Constructed or protected so that exposure to the weather will not interfere with successful operation.
- Rainproof
- Raintight
- Watertight
- Weatherproof
Correct Answer

A. Weatherproof

Explanation

Weatherproof means that something is constructed or protected in a way that it can withstand exposure to various weather conditions without being affected or damaged. It implies that the item will continue to function properly regardless of rain, wind, sun, or other weather elements. This term is commonly used for outdoor electronics, buildings, clothing, and other objects that need to withstand the elements.

Rate this question:

1
11.

The voltage difference between two points that represents the work involved in the transfer of a unit charge from one point to the other.
- WATTAGE
- CURRENT
- POTENTIAL DIFFERENCE
- VOLTAGE
Correct Answer

A. POTENTIAL DIFFERENCE

Explanation

The correct answer is potential difference because it refers to the voltage difference between two points. Potential difference represents the work done in transferring a unit charge from one point to another. It is a measure of the electrical potential energy per unit charge.

Rate this question:
12.

A group of two or more cells connected together to produce electric current.
- BATTERY
- ELECTRODE
- ELECTROLYTE
- CELL
Correct Answer

A. BATTERY

Explanation

A battery is a group of two or more cells connected together to produce electric current. Each cell within the battery contains an electrode and an electrolyte, which work together to generate and store electrical energy. The cells are connected in series or parallel to increase the overall voltage or capacity of the battery. Therefore, a battery is the correct answer as it accurately describes a group of cells connected together to produce electric current.

Rate this question:

1
13.

A fundamental PROPERTY of subatomic particles
- Electric Charge
- Electrical Power
- Electrical Energy
- Electrical Engineering
Correct Answer

A. Electric Charge

Explanation

Electric charge is a fundamental property of subatomic particles. It refers to the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Electric charge can be positive or negative, and like charges repel while opposite charges attract. This property is essential in understanding the behavior of particles and their interactions in the field of physics.

Rate this question:
14.

A point on the wiring system at which current is taken to supply utilization equipment.
- Fitting
- Equipment
- Appliance
- Outlet
Correct Answer

A. Outlet

Explanation

An outlet is a point on the wiring system where current is taken to supply utilization equipment. It is a device that provides a connection for electrical devices to be plugged in and receive power. Outlets are commonly found in homes and buildings and are used to power appliances, electronics, and other equipment.

Rate this question:
15.

Form of general-use switch for isolating an electric circuit from the source of power
- Isolating (Disconnecting Switch)
- Branch Circuit Conductor
- Transfer Switch
- Switchboard
Correct Answer

A. Isolating (Disconnecting Switch)

Explanation

An isolating (disconnecting) switch is a form of general-use switch that is used to disconnect an electric circuit from the source of power. It provides a means to isolate the circuit for maintenance or repair purposes, ensuring the safety of the personnel working on the circuit. This switch allows the circuit to be completely de-energized, preventing any electrical flow and eliminating the risk of electric shock. It is commonly used in residential, commercial, and industrial settings to safely isolate circuits and prevent accidents.

Rate this question:
16.

The term "UPS" means
- Uninterruptible Power System
- Uninterruptible Power Storage
- Uninterruptible Power Supply
- Uninterruptible Parallel Supply
Correct Answer

A. Uninterruptible Power Supply

Explanation

The term "UPS" stands for Uninterruptible Power Supply. This device is used to provide backup power to electronic devices in case of a power outage or voltage fluctuation. It ensures uninterrupted power supply by instantly switching to battery power when the main power source fails. This helps to prevent data loss, equipment damage, and downtime in critical systems.

Rate this question:
17.

Device intended for the protection of personnel that functions to de-energize a circuit orportion thereof within an established period of time when a current to ground exceeds the values established for a Class A device.
- Switch, Motor-Circuit
- Remote Control Circuit
- Branch Circuit
- Ground-Fault Circuit Interrupter (GFCI)
Correct Answer

A. Ground-Fault Circuit Interrupter (GFCI)

Explanation

A Ground-Fault Circuit Interrupter (GFCI) is a device that is designed to protect personnel from electric shocks. It works by quickly de-energizing a circuit or a portion of it when a current to ground exceeds the values established for a Class A device. This means that if there is a ground fault, where electricity is flowing through an unintended path, the GFCI will detect the imbalance and shut off the power to prevent potential harm to people. Therefore, the GFCI is the correct answer in this case.

Rate this question:

1
18.

Achived through the use of a bimetal heated by the load current. because bimetals are responsive to the heat emitted by the current flow, they allow a long time delay on light overloads, yet they have a fast response on heavier overloads.
- Electronic rms Trip Breakers
- Thermal-Magnetic Breakers
- Arc Extinguishers
- Earth leakage circuit breakers
Correct Answer

A. Thermal-Magnetic Breakers

Explanation

Thermal-magnetic breakers are able to provide protection against both thermal and magnetic overloads. The explanation states that these breakers use a bimetal heated by the load current. Bimetals are responsive to the heat emitted by the current flow, allowing for a long time delay on light overloads. However, they also have a fast response on heavier overloads. This means that thermal-magnetic breakers can effectively protect against a wide range of overloads, making them a suitable choice for various applications.

Rate this question:

1
19.

A contact device installed at the outlet for the connection of an attachment plug
- Controller
- Raceway
- Feeder
- Receptacle
Correct Answer

A. Receptacle

Explanation

A receptacle is a contact device installed at the outlet for the connection of an attachment plug. It is a device that allows electrical equipment to be connected to a power supply. It typically consists of one or more sockets where plugs can be inserted. The receptacle provides a safe and convenient way to connect and disconnect electrical devices, allowing for easy access to power sources.

Rate this question:
20.

An electric cable enclosed within a metallic sheath in order to reduce the effects of external electric or magnetic fields
- NON- METALLIC SHEATED CABLE
- SHIELDED CABLE
- ROMEX COAXIAL CABLE
- CABLE
Correct Answer

A. SHIELDED CABLE

Explanation

A shielded cable is an electric cable that has a metallic sheath surrounding it. This metallic sheath acts as a barrier, reducing the effects of external electric or magnetic fields on the cable. It helps to protect the signals being transmitted through the cable from interference or noise caused by these external fields. This makes shielded cables ideal for applications where there is a need for reliable and high-quality signal transmission, such as in telecommunications or data transfer.

Rate this question:
21.

Are used to transfer the load or source of power from one point to another. It is often used in connection with standby or emergency power supplies.
- Isolating (Disconnecting Switch)
- Branch Circuit Conductor
- Transfer Switch
- Switchboard
Correct Answer

A. Transfer Switch

Explanation

A transfer switch is used to transfer the load or source of power from one point to another. It is commonly used in connection with standby or emergency power supplies. This switch allows for a smooth transition between the main power source and the backup power source, ensuring uninterrupted power supply during power outages or maintenance work.

Rate this question:
22.

Its function is to combine, divide, and extinguish the arc drawn between opening breaker contacts.
- Electronic rms Trip Breakers
- Thermal-Magnetic Breakers
- Arc Extinguishers
- Earth leakage circuit breakers
Correct Answer

A. Arc Extinguishers

Explanation

Arc extinguishers are devices that are used to extinguish the arc that is formed between the opening contacts of a circuit breaker. When a circuit breaker is opened, an arc is created due to the interruption of the electrical current. This arc can be dangerous and can cause damage to the contacts and surrounding equipment. Arc extinguishers work by using various techniques such as cooling, magnetic blowout, or deionization to quickly extinguish the arc and prevent any further damage.

Rate this question:
23.

An enclosed channel of metal or nonmetallic materials designed expressly for holding wires, cables, or busbars, with additional functions as permitted in this Code.
- Controller
- Raceway
- Feeder
- Receptacle
Correct Answer

A. Raceway

Explanation

A raceway is an enclosed channel made of metal or nonmetallic materials that is specifically designed to hold wires, cables, or busbars. It is a component that is used in electrical installations to protect and organize the wiring system. The raceway provides a safe and secure pathway for the electrical conductors, preventing them from being damaged or exposed to external elements. It also allows for easy installation, maintenance, and modification of the electrical system. In addition to its primary function, a raceway may also have additional permitted functions as specified in the electrical code.

Rate this question:
24.

A unit of electric measurement equal to the product of one volt and one ampere, equivalent to one watt for direct current system and a unit of apparent power for alternating current systems.
- VOLT AMPERE
- DIRECT CURRENT
- ARMATURE
- ALTERNATING CURRENT
Correct Answer

A. VOLT AMPERE

Explanation

A volt ampere is a unit of electric measurement that represents the product of one volt and one ampere. In a direct current system, it is equivalent to one watt, which is a unit of power. In alternating current systems, a volt ampere is a unit of apparent power.

Rate this question:
25.

A tube, pipe or duct for enclosing and protecting electric wires or cable.
- RACEWAY
- FLEXIBLE METAL CONDUIT
- CONDUIT
- CABLE
Correct Answer

A. CONDUIT

Explanation

A conduit is a tube, pipe, or duct that is used to enclose and protect electric wires or cables. It provides a safe and organized pathway for the wires, preventing damage and ensuring efficient transmission of electricity. Conduits are commonly made of metal or plastic and can be rigid or flexible depending on the specific application. They are an essential component in electrical installations, allowing for the proper routing and protection of wires and cables.

Rate this question:
26.

An open metal framework for supporting insulated electrical conductors.
- CABLE TRAY
- KNOCKOUT
- GROMMET
- BUSHING
Correct Answer

A. CABLE TRAY

Explanation

A cable tray is a type of open metal framework that is used to support and organize insulated electrical conductors. It provides a safe and efficient way to route and protect cables in various settings, such as industrial buildings or data centers. The open design of the cable tray allows for easy installation and maintenance of the cables, as well as proper ventilation to prevent overheating. Overall, a cable tray is an essential component in electrical systems to ensure the proper functioning and organization of cables.

Rate this question:
27.

Unit is watt (W)
- Electric Charge
- Electrical Power
- Electrical Energy
- Electrical Engineering
Correct Answer

A. Electrical Power

Explanation

The unit watt (W) is commonly used to measure electrical power. Power refers to the rate at which electrical energy is converted or transferred. It quantifies the amount of work done or energy consumed per unit time. In the context of electrical engineering, power is a crucial concept as it helps in understanding the efficiency and capacity of electrical systems and devices. Therefore, the answer "Electrical Power" is appropriate as it directly relates to the given unit of measurement.

Rate this question:
28.

Are achieved by the use of current transformers and solid-state circuitry that monitors the current and initiates tripping through a flux shunt trip when an overload or short circuit is present.
- Electronic rms Trip Breakers
- Thermal-Magnetic Breakers
- Arc Extinguishers
- Earth leakage circuit breakers
Correct Answer

A. Electronic rms Trip Breakers

Explanation

Electronic rms Trip Breakers are able to achieve tripping in the presence of overload or short circuit conditions by using current transformers and solid-state circuitry. The current transformers monitor the current flowing through the circuit, while the solid-state circuitry detects any abnormalities such as an overload or short circuit. When such a condition is detected, the circuitry initiates tripping through a flux shunt trip mechanism. This mechanism ensures that the breaker trips and interrupts the flow of current in order to protect the circuit and prevent any potential damage or hazards.

Rate this question:
29.

The RATE of doing work; the PRODUCT of VOLTAGE and CURRENT in a circuit
- Electric Charge
- Electrical Power
- Electrical Energy
- Electrical Engineering
Correct Answer

A. Electrical Power

Explanation

Electrical power refers to the rate at which work is done or energy is transferred in an electrical circuit. It is calculated by multiplying the voltage and current in the circuit. This means that the more voltage and current present in a circuit, the higher the electrical power. Therefore, electrical power is the correct answer as it aligns with the given definition.

Rate this question:
30.

The SI unit of electric charge equal to the quantity of electricity transferred along the conductor by a current of one ampere in one second.
- Couloumb
- Wattage
- Watt
- Electromotive Force
Correct Answer

A. Couloumb

Explanation

The SI unit of electric charge is the coulomb. It is defined as the quantity of electricity transferred along a conductor when a current of one ampere flows through it for one second. The coulomb is a fundamental unit in electromagnetism and is used to measure the amount of electric charge in a system. It is named after the French physicist Charles-Augustin de Coulomb, who made significant contributions to the study of electromagnetism.

Rate this question:
31.

A panel in a casing or box that can readily be removed, as by punching, hammering or cutting to provide an opening into the interior.
- CABLE TRAY
- KNOCKOUT
- GROMMET
- BUSHING
Correct Answer

A. KNOCKOUT

Explanation

A knockout refers to a panel in a casing or box that can be easily removed, typically by punching, hammering, or cutting, in order to create an opening into the interior. This allows for easy access to the inside of the casing or box for various purposes such as installing or repairing electrical components or routing cables.

Rate this question:
32.

Utilization equipment, generally other than industrial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one or more functions such as clothes washing, air conditioning, food mixing, deep frying, and so forth.
- ELECTRONICS
- FURNITURE
- APPLIANCE
- MACHINE
Correct Answer

A. APPLIANCE

Explanation

An appliance refers to equipment that is typically used in households or non-industrial settings and is available in standardized sizes or types. These appliances are installed or connected as a unit to perform various functions such as washing clothes, air conditioning, food mixing, deep frying, and more.

Rate this question:
33.

An accessory such as a locknut, bushing, or other part of a wiring system that is intended primarily to perform a mechanical rather than an electrical function.
- Fitting
- Equipment
- Appliance
- Outlet
Correct Answer

A. Fitting

Explanation

A fitting is a type of accessory that is used in a wiring system primarily for mechanical purposes rather than electrical functions. It could refer to a locknut, bushing, or any other part that helps in the installation or connection of electrical components. Unlike equipment or appliances, which are more focused on electrical operations, fittings are specifically designed to provide mechanical support or facilitate the proper installation of wiring systems. An outlet, on the other hand, refers to a device through which electrical power is supplied to connected devices, making it less likely to be the correct answer in this case.

Rate this question:
34.

The POTENTIAL difference between two points in a circuit
- Current
- Voltage
- Electricity
- Resistance
Correct Answer

A. Voltage

Explanation

Voltage refers to the potential difference between two points in a circuit. It is a measure of the electric potential energy per unit charge. Voltage is responsible for driving the flow of electric current through a circuit. It is often described as the "push" or "force" that causes electrons to move from one point to another. Without voltage, there would be no flow of electricity in a circuit.

Rate this question:
35.

An overcurrent protective device with circuit-opening fusible member, which is heated and severed by passage of overcurrent through it.
- Panelboard
- Circuit breaker
- Fuse
- Switchboard
Correct Answer

A. Fuse

Explanation

A fuse is an overcurrent protective device that contains a circuit-opening fusible member. When an overcurrent passes through the fuse, the fusible member heats up and ultimately gets severed, opening the circuit and protecting the electrical system from damage. Fuses are commonly used in electrical systems to prevent excessive current flow and safeguard against short circuits or overloads.

Rate this question:
36.

It is a device that transfers electric energy from one circuit to another. It is frequently used, in electric power distribution, to step-up or step down the voltage and/or isolate one electric circuit to another.
- Generator
- Circuit breaker
- Transformer
- Switchboard
Correct Answer

A. Transformer

Explanation

A transformer is a device that transfers electric energy from one circuit to another. It is commonly used in electric power distribution to either increase (step-up) or decrease (step-down) the voltage. Additionally, transformers are used to isolate one electric circuit from another.

Rate this question:
37.

An auxiliary power station where electrical current is converted, as from DC to AC or where voltage is stepped up or down.
- UNIT SUBSTATION
- SUBSTATION
- SERVICE LATERAL
- SWITCHGEAR ROOM
Correct Answer

A. SUBSTATION

Explanation

A substation is an auxiliary power station where electrical current is converted, such as from DC to AC or where voltage is stepped up or down. It is a crucial part of the electrical power system as it helps in the distribution and transmission of electricity. Substations are responsible for maintaining the reliability and stability of the power supply by regulating voltage levels and protecting the system from faults and overloads. They also play a vital role in connecting different power sources, such as generators or renewable energy systems, to the grid.

Rate this question:

1
38.

A device that, when interrupting currents in its current-limiting range, reduces the current flowing in the faulted circuit to a magnitude substantially less than that obtainable in the same circuit if the device were replaced with a solid conductor tor having comparable impedance.
- Plug Fuse
- Fixed-Trip Circuit Breakers
- Fuse
- Current-Limiting Overcurrent Protective Device
Correct Answer

A. Current-Limiting Overcurrent Protective Device

Explanation

A current-limiting overcurrent protective device is a device that can interrupt currents within its current-limiting range. When a fault occurs in the circuit, this device reduces the current flowing through the faulted circuit to a much lower magnitude than what would flow if a solid conductor or a device with comparable impedance were used instead. This helps to protect the circuit and prevent damage from excessive current.

Rate this question:
39.

Flexible, helically wound metal conduit, used for connections to motors or other vibrating equipment. Also called Greenfield conduit
- FLEXIBLE METAL CONDUIT
- CONDUIT
- ELECTRICAL METAL TUBING (EMT)
- RIGID METAL CONDUIT
Correct Answer

A. FLEXIBLE METAL CONDUIT

Explanation

Flexible metal conduit, also known as Greenfield conduit, is a type of helically wound metal conduit that is used for connections to motors or other vibrating equipment. It provides flexibility and protection for electrical wiring in areas where there may be movement or vibrations. This conduit is often used in industrial settings or in areas where there is a need for a more flexible wiring solution. It is different from other types of conduits such as electrical metal tubing (EMT) or rigid metal conduit, which have their own distinct characteristics and uses.

Rate this question:
40.

The permanent joining of metallic parts to form an electrically conductive path that ensures electrical continuity and the capacity to conduct safely any current likely to be imposed.
- Exposed
- Energized
- Grounded
- Bonded
Correct Answer

A. Bonded

Explanation

Bonded refers to the permanent joining of metallic parts to form an electrically conductive path. This ensures electrical continuity and the ability to safely conduct any current that may be imposed. Bonding is important in electrical systems to prevent the buildup of static electricity, reduce the risk of electric shock, and provide a safe path for electrical faults to dissipate.

Rate this question:
41.

Another name for power panel
- Panelboard
- Junction Box
- Distribution Panel
- Switchboard
Correct Answer

A. Distribution Panel

Explanation

A distribution panel is another name for a power panel. It is an electrical component that receives power from a main power source and distributes it to various circuits and devices within a building or facility. The distribution panel typically contains circuit breakers or fuses to protect the circuits from overloading and short circuits. It is commonly used in residential, commercial, and industrial settings to control and distribute electrical power efficiently and safely.

Rate this question:
42.

An amount of power especially the power required to operate an electrical device or appliance.
- Wattage
- Couloumb
- Watt
- Electromotive Force
Correct Answer

A. Wattage

Explanation

Wattage is the correct answer because it refers to the amount of power required to operate an electrical device or appliance. It is a unit of measurement for power, specifically the rate at which energy is consumed or produced. Wattage is commonly used to determine the power capacity of electrical devices and is essential for understanding the amount of power needed for efficient operation.

Rate this question:
43.

Electrically connected to a source of voltage.
- Exposed
- Energized
- Grounded
- Bonded
Correct Answer

A. Energized

Explanation

When an object is "electrically connected to a source of voltage," it means that it is receiving electrical energy from that source. This energizes the object, meaning it has electric power flowing through it. Therefore, the correct answer is "Energized."

Rate this question:
44.

The negative terminal of a primary cell or storage battery
- ANODE
- ELECTROLYTE
- ELECTRODE
- CATHODE
Correct Answer

A. ANODE

Explanation

The negative terminal of a primary cell or storage battery is called the anode. The anode is the electrode where oxidation occurs during the discharge of a cell or battery. It is the site where electrons are produced and flow out of the cell or battery. In contrast, the positive terminal is called the cathode, where reduction occurs. The anode and cathode work together to create an electrical current in a cell or battery.

Rate this question:

1
45.

The portion of a service conductor extending from a service drop or service lateral to the service equipment of a building.
- SERVICE DROP
- SERVICE ENTRANCE CONDUCTOR
- SERVICE LATERAL
- SERVICE CONDUCTOR
Correct Answer

A. SERVICE ENTRANCE CONDUCTOR

Explanation

A service entrance conductor refers to the portion of a service conductor that extends from a service drop or service lateral to the service equipment of a building. This conductor is responsible for carrying electrical power from the utility company's service point to the building's service equipment, such as the main breaker panel. It is an essential component in the electrical distribution system of a building, ensuring that electricity is safely and efficiently delivered to the premises.

Rate this question:
46.

A rubber or plastic washer inserted in a hole in a metal part to prevent grounding of a wire passing through the hole.
- CABLE TRAY
- KNOCKOUT
- GROMMET
- BUSHING
Correct Answer

A. GROMMET

Explanation

A grommet is a rubber or plastic washer that is inserted in a hole in a metal part to prevent grounding of a wire passing through the hole. It acts as an insulator and protects the wire from coming into contact with the metal, preventing any electrical short circuits or grounding issues. Grommets are commonly used in electrical installations to ensure the safety and proper functioning of the wiring system.

Rate this question:
47.

The minimum applied voltage at which a given insulator breaks down and permits current to pass.
- DIELECTRIC STRENGTH
- PARALLEL
- DIELECTRIC
- BREAKDOWN VOLTAGE
Correct Answer

A. BREAKDOWN VOLTAGE

Explanation

Breakdown voltage refers to the minimum applied voltage at which an insulator breaks down and allows current to flow. It is the point where the insulating material can no longer prevent the passage of electricity and starts conducting. This phenomenon is known as dielectric breakdown. The breakdown voltage is a crucial parameter in determining the maximum voltage that can be applied to an insulator before it fails and becomes conductive.

Rate this question:
48.

(As applied to live parts) Capable of being inadvertently resistor or impedance device touched or approached nearer than a safe distance by a person. It is applied to parts that are not suitably guarded, isolated, or insulated.
- Exposed
- Energized
- Grounded
- Bonded
Correct Answer

A. Exposed

Explanation

"Exposed" refers to live parts that are not adequately guarded, isolated, or insulated, making them capable of being inadvertently touched or approached by a person within an unsafe distance. This means that there is a risk of electric shock or injury if someone comes into contact with these exposed live parts.

Rate this question:
49.

A large single panel, frame or assembly of panels consisting of switches, overcurrent and other protective devices, busbars and usually metering instruments.
- Panelboard
- Circuit breaker
- Fuse
- Switchboard
Correct Answer

A. Switchboard

Explanation

A switchboard is a large single panel or assembly of panels that includes switches, protective devices, busbars, and metering instruments. It is used to control and distribute electricity in a building or facility. Unlike a panelboard, which is a smaller unit that houses circuit breakers or fuses, a switchboard is larger and more comprehensive in its functionality. It is a centralized control system that allows for the management and protection of electrical circuits.

Rate this question:

Quiz Review Timeline (Updated): Mar 21, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Sep 10, 2015

Quiz Created by
Saklay_bamboo

Recent Quizzes

Quiz on Magnetism and Electromagnetism Quiz on Magnetism and Electromagnetism

Physics EMT UNIVERSITY OF OKARA Physics EMT UNIVERSITY OF OKARA

Test physics num 2 Test physics num 2

Physics Trivia: MCQ Exam Quiz! Physics Trivia: MCQ Exam Quiz!

SACIENTIFIC CONCEPTS TEST 4B SACIENTIFIC CONCEPTS TEST 4B

G12 Right hand rule G12 Right hand rule

Back to top

Electrical Quiz Set B

Connected to earth or to some conducting body that serves in place of the earth.

Quiz Preview

The FLOW of electrons or electric charges in a circuit

The OPPOSITION to the flow of electrons in a circuit

To facilitate pulling

Offers ground fault protection and improved ground fault coordination capability.

SAFETY is its top PRIORITY

An electric current in one direction only having a magnitude that does not vary or varies only slightly.

Switching device capable of making, carrying and breaking currents under normal condition, making currents at specified time, and/or breaking currents under specified abnormal circuit conditions, such as short circuits.

An electric current that reverses direction at regularly recurring intervals, having a magnitude that varies in a sinusoidal manner.

Constructed or protected so that exposure to the weather will not interfere with successful operation.

The voltage difference between two points that represents the work involved in the transfer of a unit charge from one point to the other.

A group of two or more cells connected together to produce electric current.

A fundamental PROPERTY of subatomic particles

A point on the wiring system at which current is taken to supply utilization equipment.

Form of general-use switch for isolating an electric circuit from the source of power

The term "UPS" means

Device intended for the protection of personnel that functions to de-energize a circuit orportion thereof within an established period of time when a current to ground exceeds the values established for a Class A device.

Achived through the use of a bimetal heated by the load current. because bimetals are responsive to the heat emitted by the current flow, they allow a long time delay on light overloads, yet they have a fast response on heavier overloads.

A contact device installed at the outlet for the connection of an attachment plug

An electric cable enclosed within a metallic sheath in order to reduce the effects of external electric or magnetic fields

Are used to transfer the load or source of power from one point to another. It is often used in connection with standby or emergency power supplies.

Its function is to combine, divide, and extinguish the arc drawn between opening breaker contacts.

An enclosed channel of metal or nonmetallic materials designed expressly for holding wires, cables, or busbars, with additional functions as permitted in this Code.

A unit of electric measurement equal to the product of one volt and one ampere, equivalent to one watt for direct current system and a unit of apparent power for alternating current systems.

A tube, pipe or duct for enclosing and protecting electric wires or cable.

An open metal framework for supporting insulated electrical conductors.

Unit is watt (W)

Are achieved by the use of current transformers and solid-state circuitry that monitors the current and initiates tripping through a flux shunt trip when an overload or short circuit is present.

The RATE of doing work; the PRODUCT of VOLTAGE and CURRENT in a circuit

The SI unit of electric charge equal to the quantity of electricity transferred along the conductor by a current of one ampere in one second.

A panel in a casing or box that can readily be removed, as by punching, hammering or cutting to provide an opening into the interior.

Utilization equipment, generally other than industrial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one or more functions such as clothes washing, air conditioning, food mixing, deep frying, and so forth.

An accessory such as a locknut, bushing, or other part of a wiring system that is intended primarily to perform a mechanical rather than an electrical function.

The POTENTIAL difference between two points in a circuit

An overcurrent protective device with circuit-opening fusible member, which is heated and severed by passage of overcurrent through it.

It is a device that transfers electric energy from one circuit to another. It is frequently used, in electric power distribution, to step-up or step down the voltage and/or isolate one electric circuit to another.

An auxiliary power station where electrical current is converted, as from DC to AC or where voltage is stepped up or down.

A device that, when interrupting currents in its current-limiting range, reduces the current flowing in the faulted circuit to a magnitude substantially less than that obtainable in the same circuit if the device were replaced with a solid conductor tor having comparable impedance.

Flexible, helically wound metal conduit, used for connections to motors or other vibrating equipment. Also called Greenfield conduit

The permanent joining of metallic parts to form an electrically conductive path that ensures electrical continuity and the capacity to conduct safely any current likely to be imposed.

Another name for power panel

An amount of power especially the power required to operate an electrical device or appliance.

Electrically connected to a source of voltage.

The negative terminal of a primary cell or storage battery

The portion of a service conductor extending from a service drop or service lateral to the service equipment of a building.

A rubber or plastic washer inserted in a hole in a metal part to prevent grounding of a wire passing through the hole.

The minimum applied voltage at which a given insulator breaks down and permits current to pass.

(As applied to live parts) Capable of being inadvertently resistor or impedance device touched or approached nearer than a safe distance by a person. It is applied to parts that are not suitably guarded, isolated, or insulated.

A large single panel, frame or assembly of panels consisting of switches, overcurrent and other protective devices, busbars and usually metering instruments.