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Highway planning miscellaneous
  1. The plate load test conducted with a 75 cm diameter plate on soil subgrade yielded a deflection of 2.5 mm under a stress of 800 N/cm2. The modulus of elasticity of the subgrade soil, in kN/cm2, is
    1. 141.6
    2. 154.6
    3. 160.0
    4. 185.4
Correct Option: A

E =
1.18 × Pa
δ


= 1.18 × 800 ×
75
2
0.25

= 141.6 kN/cm2


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