71.
The moisture content at which soil begins to crumble when rolled into threads is:

72.
The effective stress in soil equals:

73.
Which parameter is NOT involved in calculating shear strength in the Mohr-Coulomb equation?

74.
A soil sample has a porosity of 40%. What does this mean?

75.
Quick condition or liquefaction occurs when:

76.
The term "specific gravity" of soil solids refers to:

77.
The void ratio of a soil is the ratio of:

78.
Which of the following soils exhibits cohesion?

79.
Which laboratory test is commonly used to determine the water content of soil?

80.
Which one is NOT an Atterberg limit?