Consider the following statements:1. According to Terzaghi, the average angle of wall friction may be taken equal to two-thirds of the respective angle of internal friction.2. Wall friction increases the active earth Pressure and also decreases the passive earth resistance of the soil3. Wall friction decreases the active earth pressure and increases the passive earth resistance of the soil.Which of the above statements is/are Correct?

Consider the following statements:1. According to Terzaghi, the averag

1.	Consider the following statements:1. According to Terzaghi, the average angle of wall friction may be taken equal to two-thirds of the respective angle of internal friction.2. Wall friction increases the active earth Pressure and also decreases the passive earth resistance of the soil3. Wall friction decreases the active earth pressure and increases the passive earth resistance of the soil.Which of the above statements is/are Correct?
A.	1, 2 and 3
B.	1 and 2 only
C.	3 only
D.	1 and 3 only
Answer» E.

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