Building Materials The basic purpose of a retarder in concrete is To increase the initial setting time of cement paste in concrete To decrease the initial setting time of cement paste in concrete To improve the workability of concrete mix To render the concrete more water tight To increase the initial setting time of cement paste in concrete To decrease the initial setting time of cement paste in concrete To improve the workability of concrete mix To render the concrete more water tight ANSWER DOWNLOAD EXAMIANS APP
Building Materials The moisture content in a well seasoned timber is 10 % to 12 % 100 % 4 % to 6 % 15 % to 20 % 10 % to 12 % 100 % 4 % to 6 % 15 % to 20 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The initial setting time for ordinary Portland cement as per IS specifications should not be less than 10 minutes 30 minutes 60 minutes 600 minutes 10 minutes 30 minutes 60 minutes 600 minutes ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rocks which are formed due to pouring of magma at the earth's surface are called Plutonic rocks Hypabyssal rocks Volcanic rocks Igneous rocks Plutonic rocks Hypabyssal rocks Volcanic rocks Igneous rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Plastic Consists of natural or synthetic binders All listed here Is an organic substance Finished products are rigid and stable at normal temperature Consists of natural or synthetic binders All listed here Is an organic substance Finished products are rigid and stable at normal temperature ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gypsum is a Metamorphic rock Igneous rock Mechanically formed sedimentary rock Chemically precipitated sedimentary rock Metamorphic rock Igneous rock Mechanically formed sedimentary rock Chemically precipitated sedimentary rock ANSWER DOWNLOAD EXAMIANS APP
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