Correct Answer : 24
Explanation : For complete drying, sandy soil takes about 4 hours and fat clays take about 14 to 16 hours. To assure complete drying of sample, it is kept for about 24 hours.
Correct Answer : Option (D) : plasticity
Correct Answer : Option (C) : perpendicular to equipotential lines
Correct Answer : Option (B) : water content