Consider the following statements :In subsoil exploration programme the term "significant depth of exploration" is upto1. the width of foundation2. twice the width of foundation3. the depth where the additional stress intensity is less than 20% of overburden pressure4. the depth where the additional stress intensity is less than 10% of the overburden pressure5. hard rock level.Of these statements :

Consider the following statements :In subsoil exploration programme th

1.	Consider the following statements :In subsoil exploration programme the term "significant depth of exploration" is upto1. the width of foundation2. twice the width of foundation3. the depth where the additional stress intensity is less than 20% of overburden pressure4. the depth where the additional stress intensity is less than 10% of the overburden pressure5. hard rock level.Of these statements :
A.	1, 3 are 5 are correct
B.	2, 3 and 5 are correct
C.	1 and 4 are correct
D.	2 and 4 are correct
Answer» C. 1 and 4 are correct

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