Nccer electrical Samenvattingen, Aantekeningen en Examens

Worn motor bearings are most to result in a(n)___. continuous overload A high-level short circuit current may exceed ___. 50,000A` Accidental contact between an electrical conductor and a grounded enclosure is called a(n)___. ground fault Most arcing faults begin as ___. ground faults A plug fuse with a hexagonal cap has a maximum amperage rating of ___. 15A Under normal operation and at currents near its ampere rating, a fuse operates as a ___. conductor...

NCCER Electrical 1 Module 10 Questions and Answers Graded A Blue Prints An exact copy of reproduction of an original drawing Floor plan As viewed from above Site plan Location of building on the property Surveys show All property lines, existing public utilities and their location on or near the property Elevation drawings show The exterior face of the building Floor plans are in 2 dimension, length and width Topographic survey shows Property lines, contour lines, notes and symbols Sectio...

How DC motors operate? - CORRECT ANSWER Magnetic lines of force are continuous and always form closed loops; Magnetic lines of force do not cross. Armature: (Definition) - CORRECT ANSWER The rotating windings of a DC motor. The ____ is a movable electromagnet located between the poles of another fixed permanent (field) magnet as shown. - CORRECT ANSWER Armature A twisting force called ______ must be developed. _____ is produced by mounting a loop in a fixed magnetic field and as long ...

If the heater in a fixed IEC bimetallic overload relay fails, - correct answer -the entire overload relay must be replaced The nameplate of a motor indicates that the motor has an FLC of 15A and a service factor of 1.15, how much additional current can this motor safely handle for intermittent power demands? - correct answer -15A(1.15)= 17.25; 17.25A - 15A= 2.25A The minimum allowable coil control voltage needed to keep an electromechanical device energized is called the ___. - correct ans...

The minimum bending radius for 3" rigid conduit is _____. - correct answer -13" The minimum bending radius for 1/2" rigid conduit is _____. - correct answer -4" The maximum number of 90° bends allowed between pull points in a conduit system is ______. - correct answer -four A saddle bend is counted as ____. - correct answer -60°-180°, depending on the type of bends When referring to the two bends required to make an offset in a length of conduit, which of the following is alwa...

Panelboards in residential wiring are typically installed during? - correct answer -Rough-in A Residential wiring system usually uses? - correct answer -Non-Metallic-Sheeted cable(Romex) In which of the following environments would you find a commercial electrician at work? - correct answer -Office Building Which of the following would most likely require special knowledge of hazardous locations? - correct answer -Industrial wiring Tract homes are usually wired by? - correct answer -...

Define Voltage? - correct answer -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? - correct answer -The movement, or flow, of electrons in a circuit. Current(I) is measured in amperes. Define Resistance? - correct answer -An electrical property that opposes the flow of current through a circuit. Resistance (R) is measured in o...

NCCER Electrical Exam Questions and Answers (100 out of 100) Already GRADED A

Light energy that is NOT absorbed by an object can be _____. - correct answer -reflected from and/or transmitted through the object A light that is considered warm in tone is produced by lamps with color temperatures of _____. - correct answer -3,000°K The resistance of a tungsten filament is ______. - correct answer -much higher after the lamp is turned on The filament of a tungsten-halogen lamp is encased in a capsule containing iodine or _____. - correct answer -bromine gas Durin...

NCCER Electrical Set Test Questions And Verified Correct Answers A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - ANSWER : 3 Services conductors and equipment are covered in - ANSWER : NEC Article 230 The NEC required that all receptacles installed on 25 amp and 20 amp branch circuits be ______ receptacles - ANSWER : Grounding A transformer with the primary of 400 turns and a secondary of 300 turns has a _____ - ANSWER : Step-down turns ratio of 4:3 T...