Building Materials The rocks which are formed due to pouring of magma at the earth's surface are called Igneous rocks Plutonic rocks Volcanic rocks Hypabyssal rocks Igneous rocks Plutonic rocks Volcanic rocks Hypabyssal rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials The thermosetting plastic All listed here Becomes rigid when moulded at suitable pressure and temperature At 127°C to 177°C permanently set and further application of heat does not soften it Chars at 343°C All listed here Becomes rigid when moulded at suitable pressure and temperature At 127°C to 177°C permanently set and further application of heat does not soften it Chars at 343°C 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 Grey or foundry pig White or forge pig Mottled pig Bessemer pig Grey or foundry pig White or forge pig Mottled pig Bessemer pig ANSWER DOWNLOAD EXAMIANS APP
Building Materials Sea sand used in structures causes Dampness All of these Efflorescence Disintegration Dampness All of these Efflorescence Disintegration ANSWER DOWNLOAD EXAMIANS APP
Building Materials Three basic raw materials which are needed in large quantities for production of steel are Iron ore, coal and sulphur Iron ore, carbon and sulphur Iron ore, carbon and lime stone Iron ore, coal and lime stone Iron ore, coal and sulphur Iron ore, carbon and sulphur Iron ore, carbon and lime stone Iron ore, coal and lime stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Quick lime is (i) Slow in setting (ii) Rapid in slacking (iii) Good in strength Only (ii) Both (ii) and (iii) Only (i) Both (i) and (ii) Only (ii) Both (ii) and (iii) Only (i) Both (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
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