When carrying out maintenance work on a distribution board in a busy walkway, it is advisable to protect others by the use of a
Submitted by: Administrator* a) Warning sign
* b) Safety barrier
* c) Temporary bollard
* d) Audible warning device
Answer - b
Submitted by: Administrator
* b) Safety barrier
* c) Temporary bollard
* d) Audible warning device
Answer - b
Submitted by: Administrator
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