Ewrb - Study guides, Class notes & Summaries

EWRB Theory Exam Prep Exam Questions with Correct Answers.EWRB Theory Exam Prep Exam Questions with Correct Answers.

EWRB Exams Questions With 100% Correct Answers 2024/2025 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 - ANS-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 flexible c...

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 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 Exam Prep With complete solution Newest 2024/25 RATED A+

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 Prep LATEST 2024 UPDATE Questions and 100% Correct Answers 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...

EWRB EXAM 49 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ State the main reason why a large industrial electrical installation has a higher prospective short circuit current (PSSC) than a domestic electrical installation. The fault loop impedance is lower Because the distribution transformer is close to the installation or on-site A CT metering circuit is measuring the consumption of an industrial electrical installation at near to full load. The CT secondary must be shortcircu...

Ewrb Theory Exam Prep Questions With Correct Detailed Answers 2024.

EWRB (MCBs) EXAM THEARY STUDY GUIDE QUESTIONS AND ANSWERS.