DHARM
N-GEO\OBJ.PM5 891OBJECTIVE QUESTIONS 891
- Pile driving in sensitive clays could result in the reduction of resistance due to remould-
ing. True/False. - The phenomenon of ............ tends to compensate partly the change in resistance of piles
driven in sensitive clays. - Load test on a pile is one of the best methods of determining the load carrying capacity
of a pile. True/False. - Test on a pile can be used to separate point-bearing and skin friction resistances at any
load, according to I.S. code. - When a soft or a loose layer settles after the installation of a pile, ............ develops to
increase the load on the pile. - Minimum number of piles in a pile group should be .............
- The ‘group efficiency’ of a pile group
(a) will be always less than 100%.
(b) will be always greater than 100%.
(c) may be less than 100% or more than 100% depending upon the type of soil, method
of installation, and pile spacing.
(d) is more than 100% for pile groups in cohesionless soils and less than 100% for those
in cohesive soils.- Group settlement ratio of a pile group means .............
- Most theoretical solutions for laterally loaded piles involve the concept of coefficient of
subgrade reaction, based on ............ hypothesis. - For normally loaded clays and silts, the coefficient of subgrade reaction is assumed to
vary linearly with depth. The constant of proportionality is called ............. - Bypassing a bad soil may be achieved by the use of .............
- The procedure for mechanical stabilization that is widely used in the construction of
base and surface courses for low cost roads is known as ............. - Broadly speaking, the two methods of soil stabilization without additives are (i) ............
and (ii) ............. - Two very commonly used methods of soil stabilization with additives are (i) ............ and
(ii) ............. - The C.B.R. Value of the soil is usually determined for penetration of ............ mm and
............ mm. - To simulate the condition of submergence of subgrade soil in the field, ............ of labora-
tory sample is resorted to before testing for its C.B.R value. - C.B.R. Value of soil is used in one of the commonly used methods for the design of the
thickness of ............. - Besides the C.B.R. value, ............ also is required for the design of the thickness of
............. - ............ chloride and ............ chloride have been used for soil stabilization.
- ............, used as a stabilizing agent for soil, is one of the major constituents of wood and
it is obtained as a by-product in the manufacture of paper.