Ewrb - Study guides, Class notes & Summaries

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 EXAMS QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GRADED A++ Question 1: A new flexible chord has been fitted, which of the following insolation resistance test values would be correct? A. 10 MOhm B. 0.5 Ohm C. 0.5 MOhm D. 1. Ohm A. 10 MOhm Question 2: The maximum current a flexible cord can carry safely without overheating depends mainly on: A. The type of supply, a.c. or d.c. B. The cross-sectional area of the flexible cord conductors. C. The colours of the flex...

Question 1: A new flexible chord has been fitted, which of the following insolation resistance test values would be correct? A. 10 MOhm B. 0.5 Ohm C. 0.5 MOhm D. 1. Ohm - ANSWER A. 10 MOhm

Electrical wiring EWRB Final Exam Questions and answers | 2024/25

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 does BJT stand for? - ANSWER Bipolar Junction Transistor What does the transducer do? - ANSWER converts energy from one form to another State one factor that determines voltage drop - ANSWER Length of cable State one reason why a class 1 electrical appliance is set at a maximum of 1 ohm - ANSWER It prevents the touch voltages rising to dangerous levels State the test voltage used for carrying out an insulation resistance test. - ANSWER 500V DC

EWRB ELECTRICAL REGULATIONS EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ Section 1 of 3000 iis about? Fundamental Principles Section 2 of 3000 is about? Control and Protection Section 3 of 3000 is about? Wiring Systems Section 4 of 3000 is about

LOTO - ANSWER Lock Out Tag Out examples for protective /isolating device - ANSWER Disconnect Switch, MCB, Line valves LOTO tags must _____ the employee - ANSWER IDENTIFY employee