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When the bubble of the level tube of a level remains central
- a)Axis of the telescope is horizontal
- b)Line of sight is horizontal
- c)Line of sight is inclined
- d)Geometrical axis of the telescope is horizontal
Correct answer is option 'B'. Can you explain this answer?
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When the bubble of the level tube of a level remains centrala)Axis of ...
Explanation:
When the bubble of the level tube of a level remains central, it indicates that the instrument is level and the line of sight is horizontal. This is because the bubble of the level tube is used to ensure that the line of sight of the instrument is horizontal.
The level tube is a small glass or plastic tube filled with liquid, usually alcohol or ether, which has a small air bubble in it. The tube is mounted on the telescope of the level, and when the bubble is in the center of the tube, it indicates that the telescope is horizontal.
The line of sight of the level is a straight line from the objective lens of the telescope to the target. It is used to measure the difference in elevation between two points or to set up a level line for construction purposes.
The instrument is designed so that when the bubble is centered, the line of sight is horizontal. This means that the line of sight is parallel to the surface of the earth and perpendicular to the force of gravity.
Conclusion:
In conclusion, when the bubble of the level tube of a level remains central, it indicates that the line of sight of the instrument is horizontal. This is important for accurate measurements in construction and surveying work.
When the bubble of the level tube of a level remains central, it indicates that the instrument is level and the line of sight is horizontal. This is because the bubble of the level tube is used to ensure that the line of sight of the instrument is horizontal.
The level tube is a small glass or plastic tube filled with liquid, usually alcohol or ether, which has a small air bubble in it. The tube is mounted on the telescope of the level, and when the bubble is in the center of the tube, it indicates that the telescope is horizontal.
The line of sight of the level is a straight line from the objective lens of the telescope to the target. It is used to measure the difference in elevation between two points or to set up a level line for construction purposes.
The instrument is designed so that when the bubble is centered, the line of sight is horizontal. This means that the line of sight is parallel to the surface of the earth and perpendicular to the force of gravity.
Conclusion:
In conclusion, when the bubble of the level tube of a level remains central, it indicates that the line of sight of the instrument is horizontal. This is important for accurate measurements in construction and surveying work.
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When the bubble of the level tube of a level remains centrala)Axis of ...
Line of sight is Horizontal
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When the bubble of the level tube of a level remains centrala)Axis of the telescope is horizontalb)Line of sight is horizontalc)Line of sight is inclinedd)Geometrical axis of the telescope is horizontalCorrect answer is option 'B'. Can you explain this answer?
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