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Consider the following statements.
  1. Demolition work should begin at the bottom of the structure
  2. Workers should wear strictly safety belts, safety belts, safety helmets and hand glove
  3. Foundation walls serving as retaining walls to support of adjoining structures should not be demolish
Which of the above statements are correct? 
  • a)
    1, 2
  • b)
    2, 3
  • c)
    1, 3
  • d)
    1, 2, 3
Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements. Demolition work should begin at the...
Safety measures in demolition of the buildings:
  • Workers should not be deployed at different levels unless adequate precautions are taken to ensure safety of them
  • Demolition work should begin at the top of the structure and proceed downwards.
  • Masonry concrete and other dismantled materials should not be allowed to accumulate in quantities which may endanger the stability of any floor or structural support.
  • Part of the structures, where necessary should be adequately shored, braced or otherwise supported.
  • If the structure is to be demolished by explosives, all safety measures pertaining to explosives such as transport, storage, handling, loading firing etc. should be strictly adhered to. 
  • Foundation walls serving as retaining walls to support of adjoining structures should not be demolish until the adjoining structure have been under pinned or braced or earth supported by sheet pilling.
  • Stairs with hand railing should be kept in place as long as practicable to provide access and egress
  • If the work of demolition is continued in night, all passageways, stairs and other parts of the structure where the workers have to pass and also to work should be adequately lit.
  • Workers should wear strictly safety belts, safety belts, safety helmets and hand glove.
  • If the demolition is carried out by machines such as power shovels, bulldozers etc. the safety measures relevant to operation and use of such machines should be adhered to.
  • If swinging weight such as ball is used for demolition, a safety zone having a width of at least 1.50 times the height of the building or structure should be maintained. 
  • Scaffolds used for demolition operations should be independent of the structure to be demolished. 
  • If ladders are used for demolition, only travelling mechanical ladders should be used.
  • The hoists or chutes, whenever it is practicable, should be used to lower the materials. Materials chutes should have a gate at the bottom with suitable means for regulating the flow of materials
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Consider the following statements. Demolition work should begin at the bottom of the structure Workers should wear strictly safety belts, safety belts, safety helmets and hand glove Foundation walls serving as retaining walls to support of adjoining structures should not be demolishWhich of the above statements are correct?a)1, 2b)2, 3c)1, 3d)1, 2, 3Correct answer is option 'B'. Can you explain this answer?
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