CameraIcon

SearchIcon

MyQuestionIcon

127

You visited us 127 times! Enjoying our articles? Unlock Full Access!

Foundation Engineering

Soil Exploration

Consider the ...

Question

Consider the following statements:
1. Undisturbed samples may be obtained with the help of augers.
2. Auger drilling is most effective in clayey soils.
3. Hollow stem augers are sometimes used to drill holes in silty sand.
Which of these statements are correct?

A

1, 2 and 3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

1 and 2 only

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

2 and 3 only

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

1 and 3 only

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 2 and 3 only
Auger obtained samples are highly disturbed. Auger boring is most effective in soft soils which can stand unsupported and have some stickiness so that they do not fall back into the hole during lifting operation.Thus it is most effective in case of silts and clays.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Consider the following statements:
1. Obtaining reliable properties of soil is very important in geotechnical engineering. Chunk samples obtained from the field are the best for this purpose.
2. Chunk samples may easily be obtained at all depths below ground level and for all types of soils.
3. Undisturbed soil samples are enclosed in rugged containers. As such, they do not get disturbed easily during transportation and handling.
Which of these statements is/are correct?

Q. Consider the following statements:
1. Brittle behaviour of soils can be obtained when the soil is heavily over consolidated clay.
2. Remoulded cohesive clays show a tendency towards progressive failure.
3. Undisturbed sensitive clays show a tendency towards progressive failure.
Which of these statements are correct?

Q. State whether the following statements are true or false.

Statement 1: Seed drill is a traditional method of sowing seeds.
Statement 2: Seed drill helps in placing the seeds uniformly which leads to overcrowding.

Q. Consider the following statements:
1. Coarse sand is more than a million times permeable than a high plasticity clay.
2. The permeability depends on the nature of soil and not on properties of liquid flowing through soil.
3. If a sample of sand and a sample of clay have the same void ratio, both samples will exhibit the same permeability.
4. Permeability of soil decreases as the effective stress acting on the soil increases.
Which of these statements are correct?

Q. Match List-I(Sampler) with List-II (Use) and select the correct answer using the codes given below the lists:
List-I
A. Split spoon sampler
B. Stationary piston sampler
C. Rotary sampler
D. Compressed air sampler
List-II
1. To obtain representative samples in all types of soil
2. To obtain undisturbed samples of sands below water table
3. To obtain undisturbed samples in clay and silts
4. To obtain approximately undisturbed samples of hard cemented cohesive soils

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Soil Exploration

FOUNDATION ENGINEERING

Watch in App

explore_more_icon

Explore more

Soil Exploration

Other Foundation Engineering

Join BYJU'S Learning Program

CrossIcon