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Bitumen is black and sticky material. It is the same as the glue that can bond aggregates in road construction well to each other. This material can be obtained in the oil refinery. But there exists another type of this material which is natural bitumen or Gilsonite that can be extracted from mines. To know more…
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Q.1) Deval attrition test is used to determine which of the following ? A) Aggregate abrasion value B) Aggreggate impact value C) Aggregate roughness value D) Aggregate crushing value Answer Option (A) Explanation : Deval Attrition Test is carried out to measure the rate of wear of a granular material. Dorry Abrasion Test is carried…
Q.1) Jumper is a tool used for : A) Testing of stones B) Quarrying of stones C) Dressing of stones D) None of the above Answer Option (B) Q.2) Which of the following stones is best suited for construction of piers and abutments of a railway bridge? A) Granite B) Sand stone C) Lime stone…
Q.1) Which of the following has more fire-resisting characteristics? A) Marble B) Limestone C) Compact sand stone D) Granite Answer Option (C) Q.2) Which of the following timbers is suitable for making sports goods? A) Mulberry B) Mahogany C) Sal D) Deodar Answer Option (A) Q.3) Excess of alumina in brick earth makes the brick…
Q.1) The water absorption for good brick should not be more than – A) 10% of its dry weight B) 15% of its dry weight C) 10% of its saturated weight D) 15% of its saturated weight Answer Option (B) Q.2) Strength based classification of brick is made on the basis of : A) IS…
Q.1) Brick walls are measured in square metre if the thickness of the wall is – A) 10 cm B) 15 cm C) 20 cm D) None of the above Answer Option (A) Q.2) The defect that is caused by falling of rain water on the hot surfaces of the bricks is known as –…
Q.1) The standard size of masonry brick is – A) 18 x 8 x 8 cm B) 19 x 9 x 9 cm C) 20 x 10 x 10 cm D) 21 x 11 x 11 cm Answer Option (B) Q.2) The plasticity to mould bricks in suitable shape is contributed by – A) Alumina…
Q.1) The colour of mineral in its powered form is known as – A) Streak B) Lusture C) Texture D) Structure Answer Option (A) Q.2) Rocks having silica as main constituent are called – A) Calcareous rocks B) Argillaceous rocks C) Silicious rocks D) None of the above Answer Option (C) Q.3) Stone used for…
Q.1) The drier in an oil paint should not be more than – A) 5% B) 10% C) 15% D) 20% Answer Option (B) Q.2) The best primer used for structural steel work is : A) White Lead B) Red Lead C) Zinc Oxide D) Iron Oxide Answer Option (B) Q.3) The vehicle used in…
Q.1) For D.P.C. at plinth level, the commonly adopted material is – A) Bitumen sheeting B) Plastic sheeting C) Mastic asphalt D) Cement concrete Answer Option(D) Q.2) The cavity wall is generally provided for – A) Preventing dampness B) Heat insulation C) Sound insulation D) All of the above Answer Option(D) Q.3) The construction of…
