Installer Tech / Electrical Job Information 3 – 2nd Ed. Practice Test

These questions are part of the practice quiz. Start practicing

• What is another name for a utility box?
• What is the purpose of a grounding electrode system, and what common electrodes are used?
• The grounding hole commonly found on metal boxes uses which thread size?
• How do you estimate the required lighting level for a space using lumens?
• Red Dot boxes are made from durable die-cast __________?
• Which of the following equations expresses Ohm's Law in basic terms?
• Which statement best describes stranded conductors for long runs through conduit?
• Red Dot universal flip-lid weatherproof covers are available in which of the following colors?
• The single-gang cover is described as metallic.
• How does concealed wiring within walls differ from exposed wiring in terms of required protection?
• Those locations where fire or explosion hazards may exist due to flammable gasses or vapors, flammable liquids, combustible dust, or ignitable fibers or flyings, defines a __________?
• The purpose of anti-short bushings is to protect conductors from sharp cut ends during pulling.
• In a service panel, what does the main disconnect do?
• What is the purpose of a countertop GFCI in kitchens and how is it tested?
• Which description accurately defines voltage drop and its importance in electrical design?
• An enclosure used for splitting circuits into different branches defines which type of box?
• What is used to refer to malleable or aluminum conduit bodies?
• Which color is the second listed option for Red Dot universal flip-lid weatherproof covers when listed as Silver, Bronze, White?
• Which of the following best defines a hazardous location where flammable gases or vapors may be present?
• A __________ is a fitting intended to connect two lengths of raceway.
• When sizing conductors for ampacity, which factors must be considered?
• Which location is defined by the possible presence of flammable gases or vapors in the air?
• When power and data are brought to one enclosure, what is required to separate the wiring?
• The Residential Slab Floor Box cover options include brass and stainless steel.
• What is the purpose of a panelboard's internal clamps and why must they be used within 8 inches of a box?
• Anti-short bushings are available in multiple sizes.
• What is box fill and how is the minimum volume for a junction box determined?
• Zip Boxes are lighter in weight than metallic boxes.
• Dielectric footwear is designed to provide protection against what?
• Per NEC 406.9, 15- and 20-ampere, 125- and 250-volt receptacles outdoors in a wet location shall have an enclosure that is __________
• How do you calculate voltage drop for a single-phase circuit?
• What is the color of the single-gang, horizontal mount, weatherproof, non-metallic cover?
• How do you calculate required lighting for an area in terms of lumens and fixture counts?
• Which color is the least likely option for the single-gang cover, given the listed colors?
• Which grounding feature is commonly found at the bottom of many metal electrical boxes?
• Die-cast zinc compression connectors are available in 1/2" to 4".
• Which factor is not typically considered when sizing conductors for ampacity?
• Installations underground or in concrete slabs or masonry in direct contact with earth, and locations subject to saturation with water or other liquids, such as vehicle washing areas, and locations exposed to weather and unprotected are defined as a __________ location.
• Which areas require GFCI protection in a typical dwelling?
• Before installing equipment in a panel, which verification step is essential after de-energizing and lockout/tagout?
• In panel documentation, what should be included in the panel directory and labeling?
• Which statement about the equipment grounding conductor is true?
• A barrier added inside an electrical box to separate communication and power circuits is called what?
• Those locations in which flammable gasses or vapors are or may be present in the air in quantities sufficient to produce explosive or ignitable mixtures define which location?
• How many colors are listed for Red Dot universal flip-lid weatherproof covers?
• Which color is NOT a listed option for Red Dot universal flip-lid weatherproof covers?
• The Drop-In Floor Box is designed for poured concrete installations.
• Which statement best describes the purpose of a one-line diagram?
• The dual gang Adjust-A-Box Floor Box can be used for both power-limited and line-voltage applications at the same time.
• Zip Box Blue part numbers include their capacity in cubic inches.
• When changing from EMT conduit to flexible metal conduit, a combination coupling can be used.
• What is the primary function of the electrical service panel in a building?
• Which statement is true about raintight and weatherproof enclosures?
• What is the volume allowance required for each 6 AWG conductor installed in a box?
• How do you identify and handle a shared neutral in a multi-wire branch circuit (MWBC)?
• Code Keeper metallic while-in-use covers are available in single- and two-gang configurations.
• What is the typical mounting height for general-purpose receptacles in living spaces, and how does this differ for countertop receptacles in kitchens?
• When preparing to work on a circuit, what is the primary use of a voltage tester?
• Which cover material is not mentioned for the Residential Slab Floor Box?
• In new residential construction, when is tamper-resistant receptacle required?
• How is equipment grounding conductor size determined in practice?
• The steel low voltage bracket attaches to a switch box and is UL Listed for low voltage support. True or false?
• Where is the grounding hole located in these metal boxes?
• Carlon's adjustable backless brackets for low voltage are available in which gang configurations?
• Red Dot universal flip-lid weatherproof covers are available in silver, bronze, and white.
• A plastic corrugated raceway of circular cross section that is resistant to moisture and chemical atmospheres, and that is flame retardant defines which conduit type?
• What is the trade name for nonmetallic sheathed cable?
• How many cubic inches does a 4-inch square, 2 1/8 in deep box have?
• Which of the following is NOT a component of Ohm's Law as used in simple electrical circuits?
• Which color is not a color option for the single-gang cover?
• When reading a basic electrical plan, what should you cross-check with schedules?
• Why is a GFCI required on kitchen countertops?
• Old work backless brackets are available in one- and two-gang.
• Which materials are used for manufacturing commercial fittings?
• What risk exists if a multi-wire branch circuit lacks a common trip or tied breaker?
• Where is GFCI protection required on job sites?
• When selecting fixtures to meet the total lumen requirement, which statement is correct?
• Inside an electrical box, a barrier to separate low voltage and power circuits is called a Low voltage partition.
• What is the difference between the service drop and the service lateral from the utility?
• The abbr. 'cu in' used for box capacity stands for which term?
• How do you test a newly installed GFCI outlet to verify proper operation?
• Which statement accurately describes labeling and documentation practice for electrical panels?
• What is a junction box and why is it essential in wiring?
• What is the role of a cable clamp in protecting conductors entering a box?
• What purpose do conduit fittings like couplings and nipples serve?
• Low voltage divider plates are available for 2-, 3-, and 4-gang SuperBlue Boxes.
• NEC allows electrical conductors to share an outlet box with communication cables when they are separated by a barrier.
• Low voltage divider plates are available for 2-, 3-, and 4-gang SuperBlue Boxes.
• Which color among the following is a listed option for Red Dot universal flip-lid weatherproof covers?
• What is the purpose of a fish tape or pull string in conduit work?
• What effects does excessive voltage drop have on electrical equipment?
• What can be used for installation of multiple devices?
• What is the safe sequence for performing electrical work on a panel?
• Which statement best describes the difference between an equipment grounding conductor and a bonding jumper?
• Carlon offers a low voltage adjustable floor bracket with a cover and Leviton QuickPort Quad 106 insert for up to four low-voltage outlet ports.
• How does AFCI differ from GFCI in terms of protection and application?
• Which box would you select when mounting several outlets or switches in a single wall opening?
• A pipe or tube designed to enclose and protect conductors or cables from moisture and physical damage defines __________?
• Generally, steel boxes provide what fire rating for 4 by 4 inch or smaller wall openings?
• Which of the following are common grounding electrodes used in a grounding electrode system?
• The weatherproof enclosure requirement applies whether or not the plug cap is inserted.
• Raintight is constructed to pass the UL rain test, and weatherproof is constructed for outdoor use. True or false?
• What is a recommended approach when reading a basic electrical plan or schematic?
• Which NEC article applies to nonmetallic boxes?
• Which color is NOT a listed option for Red Dot universal flip-lid weatherproof covers?
• The Leviton QuickPort Quad 106 insert supports up to four low-voltage outlets.
• Which statement about a multi-wire branch circuit (MWBC) is correct?
• A 4-inch square extension ring added to a box with 1 1/2 in depth adds how many cubic inches of capacity?
• The Drop-In Floor Box is available with or without a hole saw.
• What is the recommended general spacing for wall receptacles in living areas?
• In a main service panel, neutrals are bonded to the grounding system. This bonding provides what benefit?
• What is backfeeding in electrical systems and why is it hazardous?
• The Adjust-A-Box Residential Floor Box can be adjusted from 0 to 2-1/4 inches.
• Which practice helps prevent backfeeding hazards during electrical work?
• What is bonding in electrical systems and why is it important for metal enclosures?
• Which describes a type of rigid, non metallic conduit?
• Octagon boxes are available in which depths?
• All Steel City EMT fittings are made in America.
• What is the standard color coding for hot, neutral, and ground in typical residential wiring?
• Set-screw couplings and connectors are for use in __________ locations.
• Which step is essential to ensure a panel cannot be energized unexpectedly during maintenance?
• The Drop-In Floor Box is sometimes supplied with a hole saw accessory.
• Which term is commonly used as the trade name for nonmetallic sheathed cable?
• What is AFCI protection and where is it required in most residential installations?
• Zip Boxes are made from high impact PVC.
• Locations that are hazardous because of the presence of combustible dust define which type of location?
• Carlon offers a double-gang low voltage add on bracket.
• Anti-short bushings are for use with armored cable and flexible metal conduit to protect the conductors from sharp cut ends during pulling. They are made of plastic and are available in multiple sizes.
• Weatherproof covers are required by the NEC anywhere water may come in contact with Weatherproof covers are required by the NEC anyplace water may come in contact with :
• How is a motor overload protective device typically sized relative to motor FLA?
• Why must neutrals be isolated from grounds in subpanels?
• How is a standard three-way switch circuit wired?
• Steel City EMT compression couplings and connectors are not concrete tight.
• What is the function of the neutral bus in a main service panel?
• How do you determine the maximum number of conductors allowed in a given EMT conduit?
• What does the Test button on a GFCI outlet do?
• Box capacity is expressed in which unit?
• Which factor is not typically considered in standard conduit fill calculations?
• Which NEC Article should be referenced when installing boxes and fittings?
• What is the typical mounting height for wall receptacles in living areas?
• Those locations that are hazardous because of the presence of easily ignitable fibers or flyings, but in which the fibers or flyings are not likely to be in suspension in the air in quantities sufficient to produce ignitable mixtures defines a __________?
• What does conduit fill determine in electrical installations, and how is it calculated?
• What is the purpose of lockout/tagout in electrical safety?
• The old-work box supports are for use on drywall up to how thick?
• Which energy-efficient strategies should be considered in lighting design?
• EMT is commonly called thickwall.
• Which considerations are important when setting up temporary power for a job site?
• Zip Boxes have engraved NEC wire fill capacities.
• Electrical Nonmetallic Tubing (ENT) is best described as which of the following?
• In which installations would a mud ring be used?
• What are the Steel City cable protector dimensions?
• Which statement best describes the content of a panel directory/update plan?
• Where should a service disconnect be located and why?
• Old work backless brackets are available in one- and two-gang.
• Which accessory is UL Listed for low voltage support when used with a switch box?
• Which of the following is NOT a component of Ohm's Law as used in simple circuits?
• What trade size are die-cast zinc compression connectors available in?
• What is the color of the single-gang, horizontal mount, weatherproof, non-metallic cover?
• Which color is the single-gang cover described as having?
• How many cubic inches does a 3 by 2 inch switch box with a depth of 2.5 inches have?
• The Red Dot universal flip-lid weatherproof covers are available in three colors. True or false?
• Which hub size is not offered for the Residential Slab Floor Box?
• What is a grounding electrode conductor and where does it connect in the system?
• Which term is used to refer to malleable or aluminum conduit bodies?
• Which term is used to describe a fitting intended to connect two lengths of raceway?
• What is the proper method for wiring a 120/240V multi-wire branch circuit in a main panel?
• Compare stranded and solid conductors for branch wiring: advantages and typical applications.
• The Residential Slab Floor Box is available with either 1/2 inch or 3/4 inch hubs.
• Why are minimum working clearances around electrical panels required?
• A bushing is used where conductors enter or leave the raceway system.
• A single-gang, horizontal mount, weatherproof, non-metallic cover is available in which color?
• Carlon offers one- and two-gang low voltage adjustable backless brackets.
• Which statement is true about splice boxes and junction boxes?
• The adjustment screw on the Adjust-A-Box is used to set the height within a range.
• Red Dot boxes are made from Aluminum.
• A splice box is commonly called a junction box.
• When ordering steel city conduit fittings, the first digit represents material.
• In a 120/240V MWBC with a shared neutral, what is required for the breakers to ensure disconnection of all ungrounded conductors?
• What is the diameter of the 3/4 inch conduit knockout on a Steel City box?
• Which items constitute PPE and safety practices essential when working on live electrical circuits?