Building Materials The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as Cementation process Crucible process Bessemer process Open hearth process Cementation process Crucible process Bessemer process Open hearth process ANSWER DOWNLOAD EXAMIANS APP
Building Materials For testing compressive strength of cement, the size of cube used is 50 mm 70.6 mm 100 mm 150 mm 50 mm 70.6 mm 100 mm 150 mm ANSWER DOWNLOAD EXAMIANS APP
Building Materials A good quality stone absorbs water less than 25 % 15 % 10 % 5 % 25 % 15 % 10 % 5 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following represents a metamorphic rock? (i) Slate (ii) Shale (iii) Quartzite Both (i) and (iii) Only (iii) Both (ii) and (iii) All (i), (ii) and (iii) Both (i) and (iii) Only (iii) Both (ii) and (iii) All (i), (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout The summer The winter None of these The monsoon The summer The winter None of these The monsoon ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called Hypabyssal rocks Volcanic rocks Plutonic rocks Igneous rocks Hypabyssal rocks Volcanic rocks Plutonic rocks Igneous rocks ANSWER DOWNLOAD EXAMIANS APP