Basic Electrical Installation Work

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4. The main lighting circuit room having only one entrance would probably be: a. TN-S system c. Check your Understanding 1. 6. intermediate switch control c.When you have completed these questions, check out the answers the back the book. 3. system. 2. one-way switch control d. electricity supply which the protective and neutral functions are combined called: a. PME system b. PME system b. 5. intermediate switch control c. TN-C-S system d. pull switch control b. pull switch control b. system. one-way switch control d. electricity supply which uses the cable sheath provide earth is called a: a. The main lighting long corridor with many switches would probably be: a. two-way switch control. TN-S system c. PME supply b. system. Note: more than one multiple choice answer may correct. two-way switch control. The main lighting circuit room having two entrances would probably be: a. one-way switch control d. . intermediate switch control c. two-way switch control. electricity supply which the earthing arrangements must be provided the consumer called a: a. TN-S system c. pull switch control b. TN-C-S system d. TN-C-S system d