NCCER Electrical Certification Exam Q&A Bundle

High-voltage rubber gloves are required to be tested by a certified lab once... Every six months The major cause of death from electric shock is... Fibrillation of the heart The main factor that determines the outcome of electric shock is... The amount of current According to OSHA, portable tools...

Electrical Service electrical components that are used to connect the serving utility to the premises wiring system Raceway System Enclosures that house the conductors in an electrical system (fittings, boxes, conduit) Rough-in The beginning stage of wiring that involves the installation of the pa...

Which Article of the NEC covers grounding? article 250 Which of the following is a 90 degree, explosion proof fitting? GUAL What is a dropout plate? Metal plate with a curved surface for cable to follow as it passes from the tray All of the following are common service voltages in the United Stat...

Light energy that is NOT absorbed by an object can be _____. reflected from and/or transmitted through the object A light that is considered warm in tone is produced by lamps with color temperatures of _____. 3,000°K The resistance of a tungsten filament is ______. much higher after the lamp is tur...

Where in the NEC will you find the most information on pull and junction boxes? NEC Article 314 The combination coupling in Figure FQ01 is used to connect ___. Flexible conduit to rigid conduit When calculating the pull box size for straight pulls on systems operating at 1,000V or less, the length...

The minimum bending radius for 3" rigid conduit is _____. 13" The minimum bending radius for 1/2" rigid conduit is _____. 4" The maximum number of 90° bends allowed between pull points in a conduit system is ______. four A saddle bend is counted as ____. 60°-180°, depending on the ...

Define Voltage? The driving force that makes current flow in a circuit. Voltage often represented by the letter E, is also referred to as electromotive force (emf), difference of potential, or electrical pressure. Define Current? The movement, or flow, of electrons in a circuit. Current(I) is measu...

The maximum tungsten/infrared load amperage for a NEMA Size 0 magnetic contactor is ___. 10A A manual reversing starter uses ___. a mechanical interlock Mechanically held relays would most likely be used in a ___. hospital, auditoriums, churches A single-contact device can be used to control mult...

Electrical Metallic Tubing (EMT) The lightest duty and most widely used non flexible conduit is EMT What is often referred to as thin wall conduit? EMT NEC article 358 covers Steel or aluminum RMC is made of PVC A type of conduit that should be used when corrosion is a factor is TRUE TRUE or FA...

NEC requirements must be adhered to when installing incandescent recessed lighting fixtures because they are a fire hazard if installed incorrectly which of the following will shorten the life of a filament in an incandescent lamp? operating at warmer temperature chandeliers are a type of suspende...

The minimum number of small appliance circuits required by the NEC® in a kitchen area is _____. ** 2 When sizing residential electrical services, the laundry load is calculated as _____. 1,500VA When sizing the general lighting load for electric services, the first 3,000VA is rated at _____. ** 1...

Which of the following describes a Myers-type hub? A gasketed fitting with an O-ring used to provide water tight conduit connections Which of the following conduit bodies has a single cover opening on both sides? Type LRL Which of the following are used to protect conductors from being damaged by ...

3 basic types of 3ø motors Synchronous motor Wound rotor induction Squirrel cage induction 3 factors that cause the magnetic field to rotate The voltages of a 3ø electrical system are 120° out of phase with one another The three voltages change polarity at regular intervals The stator windings...

The slandered system of wire sizes in the United Stated is known as the _______. American Wire Gauge (AWG) system Wire sizes of No._ or larger are shown only as stranded. No.6 The purpose of stranding is to increase ________. The Flexibility of the wire A circular mil is a circle that has a diameter...