Building Materials - Study Mode
[#211] Clay and silt content in a good brick earth must be at least
Correct Answer
(A) 50%
[#212] The initial setting time for ordinary Portland cement as per IS specifications should not be less than
Correct Answer
(B) 30 minutes
[#213] According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than
Correct Answer
(C) 16 MPa
[#214] Crushing strength of a first class brick should not be less than
Correct Answer
(C) 10.5 N/mm 2
[#215] Lime stone is not a
Correct Answer
(D) Metamorphic rock