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

EWRB Theory Exam Questions with Complete Solutions

EWRB theory prep – MCBs Exam Questions with Complete Solutions

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

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

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 THEORY PREP EXAM BRAND NEW EXAM(LATEST UPDATE )|VERIFIED EXAM QUESTIONS AND CORRECT ANSWERS ALL GRADED A+|GUARANTEED SUCCESS 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 ...

EWRB THEORY EXAM PREP (2024) LATEST QUESTIONS & ANSWERS (GRADED A+) types of MCB trips - correct answer>>>thermal magnetic thermal tripping - correct answer>>>bi-metal strip, used for overload currents protection magnetic tripping - correct answer>>>magnetic inductor, used for short circuit protection reset procedure - correct answer>>>reset to OFF reset to ON arc containment includes - correct answer>>>horns carry current to chute, all...

EWRB theory prep – MCBs EXAM well updated 2024 with questions and correct answers circuit breaker purpose - CORRECT ANSWERdetect SC/OL and break contact on fault detection at short circuit, PSCC fault occurs, what operating mechanism is used - CORRECT ANSWERmagnetic field two operating mech. of MCB is - CORRECT ANSWERmagnetic and thermal bedroom lighting MCB - CORRECT ANSWER16C for bedroom lighting powerpoints MCB - CORRECT ANSWER32/20C for powerpoints and appliances, e.g....