Dumpy level is most suitable whena)the instrument is to be shifted fre...
Dumpy level is most suitable when many readings are to be taken from a single setting of the instrument. Let's understand why this is the correct answer in detail.
Dumpy level:
A dumpy level is a surveying instrument used to measure horizontal and vertical distances and angles. It consists of a telescope mounted on a tripod stand, and a spirit level that helps to ensure the instrument is levelled accurately. Dumpy level is commonly used for levelling work.
Why is dumpy level suitable when many readings are to be taken from a single setting of the instrument?
The answer to this question lies in the working principle of the dumpy level. When a dumpy level is set up and levelled correctly, it can give accurate readings of height differences between different points. The readings are taken using a levelling staff, which is a long pole with marked graduations.
Here are some reasons why dumpy level is suitable when many readings are to be taken from a single setting of the instrument:
1. Accuracy: Dumpy level is a precise instrument that can give accurate readings of height differences between different points. This makes it suitable when many readings are to be taken from a single setting of the instrument.
2. Stability: Once a dumpy level is set up and levelled correctly, it remains stable throughout the levelling process. This means that the readings taken from a single setting of the instrument are consistent and reliable.
3. Time-saving: Taking many readings from a single setting of the instrument saves time and effort. Instead of setting up the instrument multiple times, the surveyor can take many readings from a single setting, which makes the process more efficient.
Conclusion:
In summary, dumpy level is most suitable when many readings are to be taken from a single setting of the instrument. This is because of its accuracy, stability, and time-saving features.
Dumpy level is most suitable whena)the instrument is to be shifted fre...
In dumpy level various temporary adjustment are required when instrument is set on other points.
while in tilting level there are no requirement of adjustment
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