126. The coefficient of curvature for a well graded soil, must be between
127. Fundamental relationship between dry density (γd), specific gravity (G), water content (ω) and percentage of air voids (na) is :
128. A moist soil sample weighing 108 g has a volume of 60 cc. If water content is 25% and value of G = 2.52, the void ratio is
129. The shear resistance of a soil is con-tituted basically of the following component.
130. The method of the slices is applicable to
131. When the seepage pressure becomes equal to the pressure due to submerged weight of a soil, the effective pressure is reduced to zero and the soil particles have a tendency to move up in the direction of flow. This phenomenon is generally known
132. The phreatic line in an earth dam may be
133. The shearing strength of a cohesion-less soil depends upon
134. According to IS : 2720 - 1965, the composition of a dispersing solution used in pipette analysis for determining the size of particles, is
135. Cohesive soils are generally
136. If the coefficient of the active pressure Ka is 1/3, the coefficient of passive pressure Kp, is
137. The inventor of the term soil mechanics, was
138. Compression of soil occurs rapidly if voids are filled with
139. If drainage is permitted throughout the test, during the application of both normal, and shear stresses so that full consolidation occurs and no excess pore pressure is set up at any stage of the test, is known as
140. A soil sample of mass specific gravity 1.92, has a moisture content 30%. If the specific gravity of solids is 2.75, the degree of saturation, is
141. For slopes of limited extent the surface of slippage, is usually along
142. For a base failure of a slope, depth factor
143. A critical hydraulic gradient may occur when
144. Plasticity index is defined as the range of water content between
145. The minimum depth of building foundations on
146. The ratio of the undrained strength in the undrained state to the undrained strength, at the same water content, in the remoulded state, is called the sensivity of the clay. Its value for quick clays is
147. The total weight of a pycnometer with water and oven dried soil 20 (g) is 1600 g. The pycnometer filled with water alone weighs 1500 g. The specific gravity of the soil, is
148. The consolidation time for soils
149. The zero atmospheric pressure is at
150. A soil mass coated with a thin layer of paraffin weighs 460 g. When immersed, it displaces 299 cc of water. The weight of paraffin is 10 g. If specific gravity of solids is 2.5 and that of paraffin 0.9, the void ratio of soil, is