Building Materials Crushing strength of a first class brick should not be less than 7.0 N/mm² 3.5 N/mm² 10.5 N/mm² 14.0 N/mm² 7.0 N/mm² 3.5 N/mm² 10.5 N/mm² 14.0 N/mm² ANSWER DOWNLOAD EXAMIANS APP
Building Materials If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called Bessemer pig Grey or foundry pig Mottled pig White or forge pig Bessemer pig Grey or foundry pig Mottled pig White or forge pig ANSWER DOWNLOAD EXAMIANS APP
Building Materials The moisture content in a well seasoned timber is 100 % 4 % to 6 % 10 % to 12 % 15 % to 20 % 100 % 4 % to 6 % 10 % to 12 % 15 % to 20 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following represents a metamorphic rock?(i) Slate(ii) Shale(iii) Quartzite All (i), (ii) and (iii) Both (i) and (iii) Both (ii) and (iii) Only (iii) All (i), (ii) and (iii) Both (i) and (iii) Both (ii) and (iii) Only (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Rapid hardening cement contains Tri-calcium aluminate Tri-calcium silicate Tetra-calcium alumino-ferrite Di-calcium silicate Tri-calcium aluminate Tri-calcium silicate Tetra-calcium alumino-ferrite Di-calcium silicate ANSWER DOWNLOAD EXAMIANS APP
Building Materials Clay and silt content in a good brick earth must be at least 40 % 50 % 30 % 20 % 40 % 50 % 30 % 20 % ANSWER DOWNLOAD EXAMIANS APP
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