When the degree of saturation is zero, the soil mass under consideration represents two phase system with soil and air three phase system one phase system two phase system with soil and water TRUE ANSWER : ? YOUR ANSWER : ?
The angle that Coulomb’s failure envelope makes with the horizontal is called angle of internal friction None of these angle of repose cohesion TRUE ANSWER : ? YOUR ANSWER : ?
Select the incorrect statement. Effective angle of shearing resistance increases as the size of particles increases is limited to a maximum value of 45° increases as the soil gradation im-proves is rarely more than 30° for fine grained soil TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of volume of voids to the total volume of soil mass is called voids ratio porosity air content percentage air voids TRUE ANSWER : ? YOUR ANSWER : ?
Coarse grained soils are best compacted by a sheep’s foot roller vibratory roller drum roller rubber tyred roller TRUE ANSWER : ? YOUR ANSWER : ?
The effect of cohesion on a soil is to reduce the active earth pressure in-tensity but to increase the passive earth pressure intensity increase both the active earth pressure intensity and passive earth pressure intensity reduce both the active earth pressure intensity and passive earth pressure intensity increase the active earth pressure in-tensity but to reduce the passive earth pressure intensity [GATE 99] TRUE ANSWER : ? YOUR ANSWER : ?
With the increase in the amount of compaction energy optimum water content increases but maximum dry density decreases both optimum water content and maximum dry density increase optimum water content decreases but maximum dry density increases both optimum water content and maximum dry density decrease[ES 93] TRUE ANSWER : ? YOUR ANSWER : ?
Hydrometer readings are corrected for: Dispersing agent correction Meniscus correction Temperature, meniscus and dispersing agent corrections Temperature correction TRUE ANSWER : ? YOUR ANSWER : ?
Voids ratio of a soil mass can take values between 0 and 1 only never be greater than unity be zero take any value greater than zero TRUE ANSWER : ? YOUR ANSWER : ?
Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively.If other things remain constant, the coefficient of permeability increases by 33.3% increases by 50% increases by 25% decreases by 33.3% TRUE ANSWER : ? YOUR ANSWER : ?