Ewrb - Study guides, Class notes & Summaries

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

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...

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

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

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

types of MCB trips - ANSWER thermal magnetic thermal tripping - ANSWER bi-metal strip, used for overload currents protection magnetic tripping - ANSWER magnetic inductor, used for short circuit protection reset procedure - ANSWER reset to OFF reset to ON

EWRB Theory Exam Prep Questions with Complete Solutions