Civil Engineering Mcqs

If the degree of saturation of a partially saturated soil is 60%, then air content of the soil is______________?

• (A)  40%
• (B)  60%
• (C)  80%
• (D)  100%

Answer

Submitted By :Ali Uppal

If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then______________?

• (A)  the liquid limit of soil always increases
• (B)  the liquid limit of soil always decreases
• (C)  the liquid limit of soil may increase
• (D)  the liquid limit of soil may decrease

Answer

Submitted By :Ali Uppal

Which of the following soils has more plasticity index ?

• (A)  sand
• (B)  silt
• (C)  clay
• (D)  gravel

Answer

Submitted By :Ali Uppal

If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in______________?

• (A)  liquid state
• (B)  plastic state
• (C)  semi-solid state
• (D)  solid state

Answer

Submitted By :Ali Uppal

Toughness index is defined as the ratio of____________________?

• (A)  plasticity index to consistency index
• (B)  plasticity index to flow index
• (C)  liquidity index to flow index
• (D)  consistency index to liquidity index

Answer

Submitted By :Ali Uppal

At liquid limit, all soils possess________________?

• (A)  same shear strength of small magnitude
• (B)  same shear strength of large magnitude
• (C)  different shear strengths of small magnitude
• (D)  different shear strengths of large magnitude

Answer

Submitted By :Ali Uppal

The water content of soil, which represents the boundary between plastic state and liquid state, is known as_________________?

• (A)  liquid limit
• (B)  plastic limit
• (C)  shrinkage limit
• (D)  plasticity index

Answer

Submitted By :Ali Uppal

The admixture of coarser particles like sand or silt to clay causes______________?

• (A)  decrease in liquid limit and increase in plasticity index
• (B)  decrease in liquid limit and no change in plasticity index
• (C)  decrease in both liquid limit and plasticity index
• (D)  increase in both liquid limit and plasticity index

Answer

Submitted By :Ali Uppal

When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as_____________?

• (A)  negative
• (B)  zero
• (C)  non-plastic (NP)
• (D)  1

Answer

Submitted By :Ali Uppal

If the plasticity index of a soil mass is zero, the soil is______________?

• (A)  sand
• (B)  silt
• (C)  clay
• (D)  clayey silt

Answer

Submitted By :Ali Uppal