Question

Statement (I): The possibility of quicksand condition occurring is more on the downstream of a weir on a permeable foundation than on the upstream end with an upward component of seepage velocity.
Statement {II): Seepage lines end with an upward component of seepage velocity at the downstream reaches of such a weir.

• A. Both Statement (I) and Statement (II) are individually true and Statement (11) is the correct explanation of Statement (I)
• B. Both Statement (I) and Statement (II) are individually true but Statement (II) is NOT the correct explanation of Statement (I)
• C. Statement (I) is true but Statement (II) is false
• D. Statement (I) is false but Statement (II) is true

Answer 1

The correct option is A Both Statement (I) and Statement (II) are individually true and Statement (11) is the correct explanation of Statement (I)

Upward seepage reduces effective stress and downward seepage increases effective stresses.