Ewrb theory exam exam - Study guides, Class notes & Summaries

EWRB Theory Prep – MCBs Exam Questions And Answers types of MCB trips - ANS-thermal magnetic thermal tripping - ANS-bi-metal strip, used for overload currents protection magnetic tripping - ANS-magnetic inductor, used for short circuit protection reset procedure - ANS-reset to OFF reset to ON arc containment includes - ANS-horns carry current to chute, allow arc to jump out arc chute lengthens distance for arc to travel oil suppresses arc splitter plates split the arc arc...

EWRB THEORY PREP - MCBS EXAM QUESTIONS WITH ANSWERS 100% GUARANTEED PASS LATEST UPDATE types of MCB trips thermal magnetic thermal tripping bi-metal strip, used for overload currents protection magnetic tripping magnetic inductor, used for short circuit protection reset procedure reset to OFF reset to ON arc containment includes horns carry current to chute, allow arc to jump out arc chute lengthens distance for arc to travel oil suppresses arc splitter plates split the arc arc c...

EWRB THEORY PREP - LOTO EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LOTO Lock Out Tag Out examples for protective /isolating device Disconnect Switch, MCB, Line valves LOTO tags must _____ the employee IDENTIFY employee LOTO devices shall be standard 1,2,3 1, colour 2, shape 3, size LOTO procedures can only b performed by ______ authorized employees 4 stored energy sources include 1, springs 2, hydraulics 3, tension 4, electricity purpose of LOTO To prevent the...

EWRB THEORY PREP RCD SPECS EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ RCD type AC detects and prevents imbalances in AC RCD personal protection (type ii) 30mA, 300ms RCD property protection (PRCD) 300mA

What is the minimum value of the permitted test result for the insulation resistance test of a three-phase, 400V, mains cable? - ANS 1MΩ When carrying out testing on a low voltage electrical installation, which document details the tests and checks required to be carried out? - ANS AS/NZS 3000 What is the minimum or maximum test result value you would consider acceptable for an Earth Continuity test? - ANS 1Ω or less State TWO types of electrical protection provided by a RCBO...

EWRB Theory Exam Prep Questions with Complete Solutions

EWRB THEORY EXAM PREP MAIN GUIDE WITH COMPLETE SOLUTIONS.

EWRB theory prep - MCBs exam with complete solutions 2024_2025

What is the minimum value of the permitted test result for the insulation resistance test of a three-phase, 400V, mains cable? - ANSWER 1MΩ When carrying out testing on a low voltage electrical installation, which document details the tests and checks required to be carried out? - ANSWER AS/NZS 3000 What is the minimum or maximum test result value you would consider acceptable for an Earth Continuity test? - ANSWER 1Ω or less

EWRB Theory Exam Questions with Complete Solutions