Description : The commonly used raw material in the manufacture of cement, is (A) Slate (B) Sand stone (C) Lime stone (D) Basalt
Last Answer : Answer: Option C
Description : Slate is formed by metamorphic action on (A) Shale (B) Lime stone (C) Sand stone (D) Granite
Last Answer : Answer: Option A
Description : Calcareous and argillaceous materials used in manufacture of cement consists of (a) Lime stone (b) Chalk (c) Shales (d) All the above
Last Answer : (d) All the above
Description : Which of the following metamorphic rocks has the most weather resisting characteristics? (A) Marble (B) Quartzite (C) Slate (D) Lime stone
Last Answer : Answer: Option B
Description : The stone whose crushing strength is maximum, is (A) Granite (B) Chalk (C) Slate (D) Sand stone
Description : Which one of the following rocks is used for monumental buildings? (A) Granite (B) Marble (C) Sand stone (D) Slate
Description : In water bound macadam roads, binding material, is (A) Sand (B) Stone dust (C) Cement (D) Brick dust
Description : Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is (A) 5CaO. 3 Al2O3 (B) 3CaO. Al2O3 (C) 3CaO. SiO2 (D) 2CaO. SiO2
Last Answer : Option A
Description : For the manufacture of Portland cement, the proportions of raw materials used, are (A) Lime 63% ; silica 22% ; other ingredients 15% (B) Lime 22% ; silica 63% ; other ingredients 15% (C) Silica 40% ; lime 40% ; other ingredients 20% (D) Silica 70% ; lime 20% ; other ingredients 10%
Description : Pick up the correct statement from the following: (A) The free quartz suddenly expands at a temperature lower than 600°C (B) The lime stone resists fire upto about 800°C and at higher temperature it splits into ... (C) The sand stone with silicates resist a fire in a better way (D) All the above
Last Answer : Answer: Option D
Description : Which of the following sedimentary rocks changes into quartzite by metamorphic action? (A) Sand stone (B) Lime stone (C) Shale (D) Gypsum
Description : Which of the following stone is best suited for construction of piers and abutments of a railway bridge? (A) Granite (B) Sand stone (C) Lime stone (D) Quartze
Description : Which of the following has more fire resisting characteristics? (A) Marble (B) Lime stone (C) Compact sand stone (D) Granite
Description : Pavement is said to be flexible if it contains (A) Water bound macadam surface (B) Stabilised soil base constructed of lime cement or tar (C) Bitumen-bound stone layer of varying aggregates (D) All the above
Description : Ordinary Portland cement is manufactured from (A) Lime stone and clay (B) Gypsum and lime (C) Pozzolana (D) Lime, pozzolana and clay
Description : The stone masonry of finely dressed stones laid in cement or lime, is (A) Random rubble masonry (B) Coursed rubble masonry (C) Dry rubble masonry (D) Ashlar masonry
Description : The stone whose crushing strength is least, is (A) Granite (B) Chalk (C) Marble (D) Slate
Description : Lime stone, Sand stone and Dolomite are
Last Answer : Ans. Sedimentary rocks
Description : Shale is metamorphosed into which of the following rocks? (1) Graphite (2) Gneiss (3) Marble (4) Slate
Last Answer : (4) Slate Explanation: From depth of burial by continual sediment deposition from above, or from compressional stress from tectonic plate collisions, shale is metamorphosed into slate over ... gradually transformed into minerals that are more stable in the newly forming higher pressure environment.
Last Answer : Slate
Description : Cement is usually a mixture of : (1) Calcium silicate and calcium aluminate (2) Calcium silicate and calcium ferrate (3) Calcium aluminate and calcium ferrate (4) Lime stone and silicon dioxide
Last Answer : Calcium silicate and calcium aluminate
Description : For different layers of cement concrete floor. Pick up the incorrect statement from the following: (A) The lowest layer consists of consolidated ground (B) A 10 cm thick clean sand is laid on consolidated ground (C) ... sand (D) A 10 cm thick cement concrete (1 : 2 : 4) is laid on top layer
Last Answer : Option D
Description : The material used in the manufacture of lead pencil is – (1) Graphite (2) Lead (3) Carbon (4) Mica
Last Answer : (1) Graphite Explanation: Pencils create marks via physical abrasion, leaving behind a trail of solid core material that adheres to a sheet of paper or other surface. They are noticeably distinct from ... of graphite mixed with a clay binder, leaving grey or black marks that can be easily erased.
Description : The material used in the manufacture of lead pencil is (1) Graphite (2) Lead (3) Carbon (4) Mica
Last Answer : Graphite
Description : The base material for distemper, is (A) Chalk (B) Lime (C) Lime putty (D) Cement wash
Description : Which one of the following is an air binding material? (A) Gypsum (B) Acid-resistant cement (C) Quick lime (D) All of these
Description : Percentage of pozzolanic material containing clay upto 80% used for the manufacture of pozzolana cement, is (A) 30 % (B) 40 % (C) 50 % (D) 60 %
Last Answer : (A) 30 %
Description : The inert mineral material used for the manufacture of mortars and concrete is (a) Cement (b) Water (c) Aggregates (d) Admixture
Last Answer : (c) Aggregates
Description : Hardest material so far found is (A) Diamond (B) Graphite (C) Carborundum (D) Pumice stone
Last Answer : (A) Diamond
Description : In a mortar, the binding material is (A) Cement (B) Sand (C) Surkhi (D) Cinder
Description : Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal (A) By chemical coagulation (B) In sedimentation tanks equipped with mechanical scrapper (C) In vacuum filter (D) In clarifiers
Last Answer : (B) In sedimentation tanks equipped with mechanical scrapper
Description : The base material for distemper is a) Chalk* b) Lime c) Lime putty d) Cement wash
Last Answer : a) Chalk*
Description : The rock which is not calcareous, is: (A) Lime stone (B) Chalk (C) Laterite (D) None of these
Last Answer : (D) None of these
Description : Dolomite is a lime stone which contains carbonate of magnesia upto (A) 15 % (B) 20 % (C) 25 % (D) 45 %
Description : If the ore impurities is (A) Clay, lime stone is used as flux (B) Lime stone, clay is used as flux (C) Quartz, lime stone and argillaceous iron ores are used as flux (D) All the above
Description : Lime stone is not a (A) Sedimentary rock (B) Stratified rock (C) Aqueous rock (D) Metamorphic rock
Description : Plaster of Paris is obtained by calcining (A) Bauxite (B) Gypsum (C) Lime stone (D) None of these
Description : Quick lime (or caustic lime) (A) Is obtained by the calcination of pure lime stone (B) Has great affinity to moisture (C) Is amorphous (D) All the above
Description : Three basic raw materials which are needed in large quantities for production of steel are (A) Iron ore, coal and sulphur (B) Iron ore, carbon and sulphur (C) Iron ore, coal and lime stone (D) Iron ore, carbon and lime stone
Description : Hydraulic lime is obtained by (A) Burning of lime stone (B) Burning of kankar (C) Adding water to quick lime (D) Calcination of pure clay
Description : Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth? (A) Lime stone and alumina (B) Silica and alkalies (C) Alumina and iron (D) Alkalies and magnesium
Description : Pick up the correct statement from the following: (A) Quick lime is obtained by burning pure lime stone (B) Hydraulic lime is obtained by burning lime stone containing clay 5% to 30% (C) Poor lime is obtained by burning lime stone containing impurities more than 5% (D) All the above
Description : If the iron ore contains clay as an impurity, the flux added during calcination, is (A) Clay (B) Lime stone (C) Argillaceous iron ore (D) All the above
Description : Salt is the basic raw material for the manufacture of (A) Cement (B) Glass (C) Potteries (D) Caustic soda
Last Answer : (D) Caustic soda
Description : Pick out the wrong statement. (A) Dry process is used for the manufacture of cement, when the raw material is blast furnace slag (B) Portland cement is made employing wet process (C) Gypsum is added to Portland cement to lengthen its setting time (D) None of these
Description : Slump test is done for (A) Clay (B) Sand (C) Lime (D) Concrete
Description : Bulking of sand is (A) Mixing of different sizes of sand particles (B) Mixing of lime with sand (C) Maximum water with sand (D) Swelling of sand when wetted
Description : For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is (A) 80 : 13 : 7 (B) 70 : 20 : 10 (C) 60 : 35 : 5 (D) None of these
Description : The proportions of lime and sand in the mortar normally used in brick construction are (A) 1 : 2 (B) 1 : 4 (C) 1 : 6 (D) 1 : 8
Description : For brick construction, the lime-sand mortar, is (A) 1 : 1 (B) 1 : 2 (C) 1 : 3 (D) 1 : 4