Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 5 (Q.No. 39)
39.
Pick up the rock which is not a sedimentary rock from the following:
gravel
sand stone
gypsum
dolerite
lignite.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
6 comments Page 1 of 1.

Pooja Nikum said:   9 years ago
Dolerite is a Igneous (hypabyssal) rock and rest are sedimentary rocks.
(2)

Shehbaz Ali said:   4 years ago
Granite dolerite and basalt are igneous rocks.
(1)

Tushar PateL said:   9 years ago
Sand stone is the right answer.

Neeraj kumar said:   9 years ago
Dolerite is igneous rock.

Adnan Guru said:   8 years ago
Why not lignite?

Vasantha devi said:   8 years ago
Lignite, often referred to as brown coal, is a soft brown combustible sedimentary rock formed from naturally compressed peat. It is considered the lowest rank of coal due to its relatively low heat content. It has a carbon content around 60-70 percent. So dolerite is correct answer.

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