EWRB (MCBs) EXAM THEARY STUDY GUIDE QUESTIONS AND ANSWERS.
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Course
EWRB
Institution
EWRB
EWRB (MCBs) EXAM THEARY STUDY GUIDE QUESTIONS
AND ANSWERS.
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 - ANSWERS A. 10 MOhm
Question 2:
The maximum curren...
EWRB (MCBs) EXAM THEARY STUDY GUIDE QUESTIONS
AND ANSWERS.
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 - ANSWERS 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 cord conductors.
D. The number of cores in the flexible cord. - ANSWERS B. The cross-sectional area of the flexible cord
conductors.
Question 3:
A 230V heater comprises two elements connected in series across the supply.
If one resistance becomes open-circuited, what is the voltage across the other resistance?
A. 0V
B. 400v
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