Which one of the following is the function of the bubble tube aligned at a 45° angle in a spirit level?
مندرجہ ذیل میں سے کون سا بلبلا ٹیوب کا کام روح کی سطح میں °45 زاویہ پر منسلک ہے؟
Answer: Checking inclined surfaces
Explanation
The bubble tube set at a 45° angle is used to check inclined or sloped surfaces.
It helps ensure surfaces are accurately angled.
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