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EWRB THEORY FINAL EXAM COMPLETE QUESTIONS AND ANSWERS ALREADY PASSED!! (A+ Graded) $10.49   Add to cart
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EWRB THEORY FINAL EXAM COMPLETE QUESTIONS AND ANSWERS ALREADY PASSED!! (A+ Graded)

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EWRB THEORY FINAL EXAM COMPLETE QUESTIONS AND ANSWERS ALREADY PASSED!! (A+ Graded) 1) What does BJT stand for? - ANSWER Bipolar Junction Transistor 2) What does the transducer do? - ANSWER converts energy from one form to another 3) State one factor that determines voltage...

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  • October 15, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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EWRB THEORY FINAL EXAM
COMPLETE QUESTIONS AND ANSWERS
ALREADY PASSED!! (A+ Graded)

1) What does BJT stand for? - ANSWER ✔ Bipolar Junction Transistor

2) What does the transducer do? - ANSWER ✔ converts energy from one form
to another

3) State one factor that determines voltage drop - ANSWER ✔ Length of cable

4) 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

5) State the test voltage used for carrying out an insulation resistance test. -
ANSWER ✔ 500V DC

6) What is the name of the system where neutral conductor is connected to the
earth at the main switchboard - ANSWER ✔ MEN System

7) State one reason why HRC fuses are installed at the origin of the final sub
circuit supplying the induction motor - ANSWER ✔ To provide short
circuit fault protection to both the final sub circuit and the motor

8) State one reason why an RCD tester is used to test a PRCD - ANSWER ✔
To verify the PRCD operates within the specified residual current

9) State the main safety issue that would occur if the only testing done was
between each phase on a 400V oven - ANSWER ✔ One phase could still be
live

10) What potential danger would transposition of phased and neutral in an
isolating switch create. - ANSWER ✔ Phase would still be live when the
isolation switch is in the off position

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