For which surfaces, is a spirit level used for testing straightness ?

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RRB JE ME CBT 2 Previous Paper 2: Held on 31 Aug 2019
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  1. Horizontal surfaces 
  2. Both Horizontal and vertical surfaces 
  3. Inclined surfaces 
  4. Vertical surfaces 

Answer (Detailed Solution Below)

Option 2 : Both Horizontal and vertical surfaces 
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Detailed Solution

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Concept:

Spirit Level:

  • Spirit level, bubble level, or simply a level is an instrument design to indicate whether a surface is horizontal (level) or vertical (plumb).

26 June 1

There are different types of spirit level for different uses:

  • Surveyor’s leveling instrument
  • Carpenter’s level (either wood, aluminum or composite materials)
  • Mason’s level
  • Torpedo level
  • Post level
  • Line level
  • Engineer’s precision level
  • Electronic level
  • Inclinometer
  • Slip or Skid indicator
  • Bull’s eye level
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