Question 1
What is the nominal low-voltage supply declared by DEWA for consumer electrical installations in Dubai?
Correct Answer:
230/400 V ± 10%, 50 Hz, 3-phase, 4-wire
Question 2
Under the DEWA system, where is the neutral conductor solidly earthed?
Correct Answer:
At DEWA's substation only
Question 3
Per DEWA regulations, socket-outlets of which rating must generally be protected by a 30 mA RCD?
Correct Answer:
All socket-outlets rated 20 A or less, unless specifically exempt
Question 4
Cables concealed in a wall at a depth of less than 50 mm must be provided with which additional protection?
Correct Answer:
A 30 mA RCD
Question 5
In BS 7671, what is the maximum disconnection time for a 230 V final circuit not exceeding 63 A on a TN system?
Correct Answer:
0.4 seconds
Question 1
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About this Exam

Prepare with the DM Electrical Exam Practice Questions - Dubai Municipality DEQ Technical Staff Exam - Electrical Fitting Contracting (Activity 453014) Exam practice quiz. This question bank includes 100 questions covering dewa, circuit, main, electrical, and conductor. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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DM Electrical Exam Practice Questions - Dubai Municipality DEQ Technical Staff Exam - Electrical Fitting Contracting (Activity 453014) Exam

This practice set contains 100 questions from the matching question bank and focuses on dewa, circuit, main, electrical, and conductor. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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