Among the tests for bricks,which test is done with the help of finger nail?

Q. Among the tests for bricks,which test is done with the help of finger nail?

A

Test for crushing strength

B

Soundness test

C

Hardness test

D

Efflorescence test

Solution:

Tests on bricks are conducted at construction site as well as in laboratory.
A good brick should resist scratches against sharp things.
So, for this test a sharp tool or finger nail is used to make scratch on brick.
If there is no scratch impression on brick then it is said to be hard brick.
Hence Hardness test is the correct answer.

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