In chain surveying a tie line is primarily provided to
ATo check the accuracy of survey
BTo avoid long offsets from other chainlines
CTo take offsets for detailed survey
DTo increase the number of chain lines
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The maximum no. of offences of the same kind within the space of 12 months that can be
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ഒരു ചോദകത്തിന്റെ സാന്നിദ്ധ്യം പ്രതികരണത്തിന്റെ ആവൃത്തി കൂട്ടുന്നുവെങ്കിൽ അത് :
The rock generally used for roofing is
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The horizontal angle, which the magnetic meridian makes with the true meridian, is known as