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Surveying - Engineering

Q1:

While measuring with a metallic tape of 30 m length pull should be applied

A 1 kg

B 2 kg

C 3 kg

D 4 kg

ANS:C - 3 kg

A is the cross section area of tape which is 20*2mm. E is the modulus of elasticity which is 2*10^5. Where p constant then pull =8/3p where it is 2.67~3.