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Free download in PDF Geotechnical Engineering MCQs and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
81
The maximum dry density upto which any soil can be compacted depends upon
[A]
amount of compaction energy only
[B]
moisture content only
[C]
both moisture content and amount of compaction energy
[D]
none of the above
Answer: both moisture content and amount of compaction energy
82
In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear
[A]
remains unchanged
[B]
increases
[C]
decreases
[D]
first increases and then decreases
83
Unconfmed compressive strength test is
[A]
drained test
[B]
consolidated drained test
[C]
consolidated undrained test
[D]
undrained test
84
The angle that Coulomb's failure envelope makes with the horizontal is called
[A]
angle of internal friction
[B]
angle of repose
[C]
cohesion
[D]
none of the above
85
Sensitivity of a soil can be defined as
[A]
ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state
[B]
percentage of volume change of soil under saturated condition
[C]
ratio of volume of voids to volume of solids
[D]
none of the above
Answer: ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state
86
The effect of cohesion on a soil is to
[A]
reduce the active earth pressure in-tensity but to increase the passive earth pressure intensity
[B]
increase both the active earth pressure intensity and passive earth pressure intensity
[C]
increase the active earth pressure in-tensity but to reduce the passive earth pressure intensity
[D]
reduce both the active earth pressure intensity and passive earth pressure intensity
Answer: reduce the active earth pressure in-tensity but to increase the passive earth pressure intensity
87
A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesionless soil under an intensity of loading of 0.2 N/ram2. The settlement of a prototype shallow footing 1 m square under the same intensity of loading is
[A]
15 mm
[B]
between 15 mm and 25 mm
[C]
greater than 25 mm
[D]
none of the above
Answer: between 15 mm and 25 mm
88
Which of the following types of soil is transported by gravitational forces ?
[A]
talus
[B]
loess
[C]
dune sand
[D]
drift
89
Rankine's theory of earth pressure assumes that the back of the wall is
[A]
vertical and smooth
[B]
plane and smooth
[C]
vertical and rough
[D]
None of the above
Answer: vertical and smooth
90
If the sand in-situ is in its densest state, then the relative density of sand is
[A]
1
[B]
between 0 and 1
[C]
greater than 1
[D]
none of the above
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