Printreading Trade Compentency Practice Test

These questions are part of the practice quiz. Start practicing

• What is the minimum diameter for stainless steel ground rods unless otherwise listed?
• What specification must a conductors' insulating material meet when entering a cabinet or box?
• Conductors connected in parallel in general wiring systems shall be at least No. _______ or larger.
• The required voltage clearance for conductors serving luminaries on a branch circuit should not exceed what?
• What type of receptacles is specifically mentioned for requiring GFCI protection?
• What is the maximum number of 2-wire branch circuits allowed under a 30A service disconnecting means?
• What scale is commonly used for prints in electrical drawings?
• On which plans is the location of all exterior walls and interior partitions shown and dimensioned?
• What is the minimum service disconnect rating for a one-family dwelling?
• How must parallel conductors in a conduit run be set up?
• What is the minimum clearance of service drops above a public driveway on other than residential property?
• What is the unit lighting load for a dwelling unit expressed in VA/sq ft?
• What does the term "grounding" mean?
• If an electrode has resistance to ground of 25 ohms or less, what is required?
• NMS cable (Romex) is not permitted in which type of studio?
• In general, the minimum ampacity of ungrounded service-entrance conductors must be at least what?
• A metal fixture must be grounded if located within what distance of a kitchen sink?
• What is the ampacity rating in degrees Celsius for conductors installed inside AC cable?
• In a 1 phase, 120/240V service, which size should the neutral conductor be if a 100A load is connected across A and B, and a 50A load across A and N?
• What type of wiring must conform to specific installation standards to ensure safety and compliance?
• What is the minimum free length of conductor at a switch outlet?
• If a branch circuit serves kitchen small appliances, how many circuits does NEC require at least?
• How many switches can be used as service disconnecting means if they are not permanently marked?
• How far from the edge of a sink must receptacle outlets in a dwelling unit be GFCI-protected?
• In which format is the NEC available?
• A grounded service entrance conductor must not connect to which part of the round boxes?
• NM cable is permitted for both exposed and concealed work in which type of location?
• What is the maximum distance EMT shall be securely fastened within of outlet boxes?
• What is the minimum clearance overhead service conductors must maintain from the ground?
• What is the minimum length of a hallway that requires a receptacle outlet?
• In architectural drafting, what is primarily shown in the floor plan?
• What does NEC require for the conductors exposed to physical damage?
• What does GFCI stand for in the context of electrical safety?
• True or False: The NEC is a legal document intended for adoption by governmental bodies.
• For overhead conductor spans, what shall not be used for support other than temporary holiday wiring?
• When connecting 100' of No. 16 fixture wire to a standard 120V circuit, what is the maximum branch-circuit overcurrent protection device allowed?
• What is the minimum clearance between the lug and wall of an enclosure for a single No. 4/0 conductor?
• Disconnecting means for motor-driven appliances over what horsepower shall be located within sight of the motor controller?
• When it is impractical to install the service drop below the weatherhead, the point of attachment can be located no farther than ______" from the point of attachment.
• Where should conduit not be connected according to the text?
• What has the Construction Specifications Institute established for writing project specifications?
• The term "service-entrance conductors overhead system" includes which of the following?
• Service equipment rated at 1000V or less must be marked for what purpose?
• What does the NEC seek to standardize concerning electrical safety?
• True or False: All prints are drawn to a scale of 1/4" = 1'-0".
• Which NEC section specifies the requirements for the minimum size of ground conductors?
• What is the minimum insulation rating for conductors installed inside nonmetallic-sheathed cable?
• Is the NEC intended to be used as an instructional manual?
• Which of the following does NOT conform to electrical grounding practices?
• How should a circuit breaker with a 60° C terminal be loaded unless otherwise marked?
• An EBJ is permitted outside a raceway when it is not over how long?
• According to the text, how should circuit breakers be loaded when not specifically marked?
• The spacing of receptacles in living areas ensures that no point along the available floor line perimeter shall exceed how many inches from a receptacle outlet?
• Surface-mounted fluorescent lighting fixtures in a closet must be installed at least how far from storage space?
• What is necessary to ensure safety when working with circuits that could create hazards during interruptions?
• What material should not be used to make driven rods for grounding electrodes?
• At what vertical distance are hanging lighting fixtures not permitted from the rim of a bathtub?
• How far above the earth should aluminum conductors be terminated when used outside as a GEC?
• What must be done before making soldered splices?
• True or False: The location of water, sewer, gas, and electrical utilities is provided on the plot plan.
• True or False: The disconnecting means for a service must connect to both grounded and ungrounded conductors.
• True or False: Overhead service conductors must maintain a clearance of at least 10 feet from the ground.
• Lighting switches mounted in or on the wall can be located above 6'-7" from the finished floor. True or False?
• Which of these practices is recommended for cabling runs without spacing?
• Which conductor is essential for ensuring metallic parts remain safe from electrical faults?
• In combustible walls or ceilings, how far back can the front edge of an outlet box or fitting be set from the finished surface?
• What is required for cables or raceways installed using directional boring equipment?
• What is the smallest overhead service conductor permitted by the NEC for loads other than limited loads of a single branch circuit?
• How long of overhead service conductors operating at less than 300 V is permitted with 18" of clearance above the roof?
• What is the proper method for assessing an air conditioning load for a one-family dwelling?
• What is the diameter of conductors needed for service lateral according to the standards?
• Can receptacle outlets located above 5-1/2 feet from the finished floor be counted as required outlets?
• The cubic inch rating of a No. 10 conductor is what volume?
• True or False: The service disconnecting means shall consist of no more than eight switches or circuit breakers?
• How many cubic inches is a standard rating for a No.18 fixture wire?
• What is the maximum number of No. 14 conductors allowed in a 1-1/2" x 4" octagonal outlet box?
• A cartridge fuse which does not have an IC rating marked on its surface shall be considered as having an IC rating of ______.
• Which of the following systems provides redundancy in electrical circuits?
• What is the minimum horizontal distance that hanging lighting fixtures must be from the rim of a bathtub?
• What type of line is drawn with a series of dashes of equal length?
• True or False: All junction boxes must be readily accessible.
• What defines a detailed plan of a building drawn orthographically?
• What welding process can the GEC be spliced by?
• When installing flexible metal conduit (FMC), what must be provided if the total ground-fault current path is over 6' in length?
• What is the term for a shortened form of a word or phrase?
• Is a receptacle located in the middle of a dining room floor counted towards fulfilling minimum NEC requirements?
• Plug fuses are never permitted in circuits that exceed what voltage between conductors?
• The cutting plane for a floor plan is generally taken how high above the floor being shown?
• What does the NEC stand for?
• What is the minimum diameter and length of rebar to be installed in concrete at the bottom of a footing?
• What should be done with unused openings in boxes and fittings?
• What is the minimum distance receptacle outlets for laundry equipment must be located from their intended appliance location?
• Which of the following is not a reason to avoid using NMS cable in specific environments?
• In which type of location is LFNC not allowed to be used, unless otherwise permitted?
• What term refers to a graphic representation of an object in printreading?
• What is the required distance for a disconnecting means to be located from water heaters rated over 300 VA?
• What required voltage marking is placed on service equipment rated at 1000V or less?
• How many Code-Making Panels exist within the NEC?
• A bare copper grounded service-entrance conductor is permitted to be used in which type of gutter?
• In which scenarios would it be inappropriate to use aluminum conductors?
• The neutral feeder conductor must be capable of carrying what type of load?
• What is the assessed demand load in VA for a 16 kVA electric range?
• Can a general purpose branch circuit supply both lighting and appliances?
• What is the minimum size of bare conductor allowed as a concrete-encased electrode?
• Are circuit breakers (CBs) that are not marked with an interrupting rating rated at 5000A?
• Is it true that a No. 6 GEC exposed to physical damage requires metal covering or protection?
• What is required for metal enclosures for grounding electrode conductors (GEC's) from the point of attachment?
• What is the maximum voltage between conductors on a branch circuit supplying luminaries?
• Is the grounding conductor in a cable assembly required to be insulated for cord and plug connected equipment?
• The metal raceway enclosing tap conductors for recessed fixtures shall not be less than _____' nor more than _____' long.
• Which regulation specifies the safe use of grounding conductors?
• What is the maximum percentage of the branch circuit ampere rating for a cord-and-plug connected utilization equipment?
• How high must NMS cable (Romex) be protected when passing through a floor?
• True or False: Membership on a Code panel, other than the chairperson, is either as an alternate or principal member.
• Which of the following roles do members of the CMP NOT represent?
• What is typically the primary focus of the NEC?
• When using the optional calculation for a dwelling service, loads above the initial 10 kVA are assessed at what percentage?
• What type of protection is required for receptacle outlets installed within 6 feet of a sink?
• Cartridge fuses and fuseholders are classified according to which criterion?
• On which type of plan are cutting planes for section views typically indicated?
• In a noncombustible ceiling, the front edge of an outlet box may be set back from the surface by how much?
• What type of depth is needed for outlet boxes to avoid damage to conductors?
• What is the minimum clearance of service drops above roof surfaces?
• What type of protection is not required for conductors when interrupting the circuit creates a hazard?
• What is the minimum branch circuit rating for a single electric range of over 8-3/4 kVA?
• Service conductors installed as open conductors shall have a clearance of not less than ____' from a window that is designed to be opened.
• Recessed non-Type IC lighting fixtures must maintain a clearance of at least what measurement from combustible material?
• What is the minimum length that tap conductors for recessed lighting fixtures must be?
• What is the maximum voltage permitted between conductors supplying screw shell lampholders in dwelling occupancies?
• Are all 125V, 20A receptacles in bathrooms required to have ground-fault circuit interrupter protection?
• What is the purpose of using an approved depth for outlet boxes?
• What is the purpose of an equipment bonding jumper in rigid metal raceways?
• What type of receptacle outlet is mandated for installation on a 15A or 20A branch circuit?
• Is the NEC considered a design specification?
• Type NM cable is not required to be connected in a nonmetallic box if secured within how many inches of the box?
• Under what condition is AC cable (BX) permitted to be unsupported?
• True or False: The screw shell of a plug-type fuseholder must be connected to the load side.
• Where not permanently accessible, nonmetallic-sheathed cable within 5' of a scuttle hole does not require protection. True or False?
• What is the purpose of a disconnecting means for stationary motors?
• If a 1-1/2" x 4" octagonal box contains a fixture stud and a cable clamp, what is the maximum number of No. 14 conductors permissible?
• What is the minimum area of exposed surface required for a plate electrode?
• Conductors of what size and larger shall be stranded when installed in raceways?
• Which of the following is true regarding Construction Management Panels (CMP)?
• The clearance of service drops from the side or bottom of windows designed to open shall not be less than what distance?
• Which chapters of the NEC apply generally?
• A detail is part of which type of view drawn at a larger scale?
• Water heaters rated over what VA shall have a disconnecting means located within 50 feet and within sight?
• Only power service-drop or overhead service conductors should be attached to a service ______.
• Receptacles connected to a 30A branch circuit supplying multiple outlets must be rated at a minimum of how many Amperes?
• What is the NEC requirement for circuits for kitchen small appliance load in dwellings?
• Which conductor of all 3-wire, DC systems supplying premises wiring shall be grounded?
• For determining the maximum number of conductors in boxes, how many conductors are counted for each yoke or strap?
• In architectural drawings, what is a print?
• Which statement is true regarding NEC proposals?
• A metal underground gas pipe cannot be used as which type of grounding device?
• What type of protection is required for rooftop receptacle outlets servicing HACR equipment?
• Which of the following is a requirement when mechanically securing splices?
• Fittings such as capped elbows and service entrance elbows are classified as which type of fittings?
• When routing several cables through the same hole, at what length must derating factors be applied?
• What is the purpose of specifications in construction projects?
• Which utility locations are typically indicated on the plot plan?
• The clearance of service drops above a rooftop is regulated to be not less than how many feet?
• Which type of view offers detailed information about construction elements?
• In non-residential applications, what is a permissible method of securing overhead conductors?
• The maximum length of overhead service conductors permitted is how many feet?
• What is the minimum distance specified for the vertical clearance above a roof level for outside branch circuits?
• The term "service drops" is associated with which part of an electrical system?
• According to the general rule, to what side should a grounding connection not be made for service disconnecting means?
• For outside branch circuits, what is the required vertical clearance above the roof level from the edge of the roof?
• What is the main purpose of the National Electrical Code (NEC)?
• Each print in a set of working drawings is a part of a building represented as what type of projection?
• Which view of a building is most commonly represented as a section view?
• What is the maximum resistance to ground for a single electrode, below which a supplemental electrode is not required?
• The conductors of NM cable shall be rated at 90° C but the allowable ampacity of the conductors shall not exceed that of a _______ ° C rated conductor.
• In general, how should raceways on the exterior surfaces of buildings be arranged?
• Should metal raceways of an electrical system be bonded or spaced from lightning protection conductors?
• What is the minimum clearance between the lug and wall of an enclosure for a single No.4/0 conductor being terminated, when the conductor does not enter or leave through the opposite wall?
• In terms of working drawings, what is the significance of the term "projection"?
• The screw shell of a plug-type fuseholder should be connected to which side of the circuit?
• What kind of rating must boxes installed in wet locations have?
• What is a key advantage of using directional boring for installing cables or raceways?
• The cubic inch rating of a No.18 fixture wire is how many cubic inches?
• What is the critical need for a cutting plane in printreading?
• What best describes a hidden line in architectural drawings?
• What type of section is taken lengthwise through a building?
• What is the minimum diameter for rod type grounding electrodes of zinc unless otherwise listed?
• What is the purpose of derating wiring run above heated ceilings?
• Non-current carrying metal parts of cord and plug connected equipment may be grounded by what?
• What is the recommended height for receptacles in living areas according to standard practices?
• The service disconnecting means need not be greater than 30A where there are not more than how many 2-wire branch circuits?
• What is the minimum amount of free conductor that should be left at each outlet?
• What is the maximum size of the Grounding Electrode Conductor (GEC) for an AC ungrounded system when it's the sole connection to a made electrode?
• According to NEC, what is the required VA per square foot for general lighting load in residential occupancies?
• What should the wiring run above heated ceilings and within thermal insulation be derated based on?
• The branch-circuit rating shall not be less than the noncontinuous load plus what percentage of the continuous load?
• For the installation of equipment grounding conductors, what is essential for safety and compliance?
• What is the significance of the resistance measurement in relation to ground rods?
• Conductors other than service conductors should not be installed in what type of service structure?
• What is the minimum clearance required between service drops and windows designed to open?
• For stationary motors rated at what horsepower or less can disconnecting means be located in the service panel as the branch circuit OCPD?
• Not more than how many switches at a service location shall be used as the service disconnecting means if they are each permanently marked?
• The NEC requires that recessed portions of non-type IC fixture enclosures shall be spaced at least _____" from combustible material.
• What is the minimum size for conductors in a service lateral according to the text?
• Which dimensions of the building should be used for determining VA/sq ft area?
• In residential occupancies, the NEC requires how many VA per square foot for the general lighting load?
• A 4" x 1-1/4" round box has how many cubic inches of fill space area?
• What is the maximum demand load assessed in VA for a 16 kVA range?
• When are double locknuts permitted for bonding with rigid metal raceways?
• The NEC introduction is followed by how many chapters?
• What must a branch-circuit switch or circuit breaker be capable of for a permanently connected appliance over 300 VA or 1/8 HP?
• How many cubic feet should securely installed boxes and fittings not exceed if they do not support fixtures or contain devices?
• Wooden supports for boxes in concealed work must be at least what nominal size?
• What type of jumper is used to bond sections of rigid metal raceway interrupted by an expansion joint?
• The ampacity of UF cable is determined by conductors rated at what temperature?
• When two switches are mounted on the same strap, should the number of conductors in the box be reduced by one?
• An elevation drawing shows what type of planes of a building?
• Which division of the CSI format pertains to electrical work?
• What is the maximum horizontal distance that a point of unbroken wall space can be from a receptacle in a living room of a dwelling unit?
• What does AHJ stand for in the context of NEC applications?
• A receptacle outlet located within 6' of a wet bar sink in a living room must be what type of protection?
• A ground ring conductor must be buried at least how deep below the earth's surface?
• True or False: Stranded wires No. 10 and smaller may be connected to equipment by means of screws used with terminal plates having upturned lugs.
• The NEC is primarily concerned with which aspect of construction?
• For a sheet metal auxiliary gutter, correction factors shall not apply when the number of current-carrying conductors is how many or less?
• When protecting NMS cable, what is the minimum height above the floor it should be protected to?
• Which of the following is the correct way the NEC identifies changes from the previous edition?
• If a 100A load is connected, how should the neutral conductor be sized?
• For a one-family dwelling, the air conditioning load is assessed at what percentage?
• What is the point of beginning in construction plans?
• Which section refers to the requirements for buried ground ring conductors?
• What might happen if the neutral feeder conductor is undersized?
• Boxes in electrical installations may have which type of covers?
• A sheet metal strap ground clamp made of strong sheet metal is permitted for connecting the GEC to the grounding electrode. True or False?
• What is the significance of the minimum area requirement for plate electrodes?
• To be classified as a grounding electrode, how long must a metal water pipe be in contact with the earth?
• A shallow outlet box can be used if it is not less than what depth?
• When is it necessary to consider the number of conductors in an outlet box?
• What does an abbreviation typically represent?
• What is the maximum rating of a cord-and-plug connected appliance on a 20A branch circuit?
• What rating is required for the service disconnect in a one-family dwelling according to the standards?
• How is material that has changed in the NEC from the previous edition indicated?
• What is the first step in the Code process?
• For devices with screw shells, which terminal is connected to the grounded conductor?
• What is the minimum size of a copper equipment grounding conductor (EGC) required for equipment connected to a 40A circuit?
• If the resistance of a single driven ground rod exceeds 25 ohms, what action must be taken?