Description : Which of the following cements is suitable for use in massive concrete structures such as large dams? (A) Ordinary Portland cement (B) Low heat cement (C) Rapid hardening cement (D) Sulphate resisting cement
Last Answer : Answer: Option B
Description : For construction of structures in sea water, the cement generally preferred to, is (A) Portland-pozzolana cement (B) Quick setting cement (C) Low heat Portland cement (D) Rapid hardening cement
Last Answer : Answer: Option A
Description : Which of the following statements is correct? (a) Sulphate resisting cement is particularly used for canal lining. (b) Low heat cement should not be used for thin concrete structures. (c) Rapid hardening cement should not be used for massive concrete structures (d) All of the above
Last Answer : (d) All of the above
Description : For the construction of thin R.C.C. structures, the type of cement to be avoided, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement
Last Answer : Answer: Option D
Description : As compared to gravity dams, earthen dams (A) Are costlier (B) Are less susceptible to failure (C) Require sound rock foundations (D) Require less skilled labour
Description : For the construction of cement concrete dams, the maximum permissible size of the aggregates, is (A) 40 mm (B) 50 mm (C) 60 mm (D) 70 mm
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 : Addition of pozzolana to cement (A) Decreases workability (B) Increases strength (C) Increases heat of hydration (D) None of these
Description : Ordinary Portland cement is manufactured from (A) Lime stone and clay (B) Gypsum and lime (C) Pozzolana (D) Lime, pozzolana and clay
Description : Addition of pozzolana to cement causes (A) Reduction in permeability (B) Loss of heat of hydration (C) Reduction in bleeding (D) All the above
Description : As compared to ordinary Portland cement, use of pozzolana cement (A) Reduces workability (B) Increases bleeding (C) Increases shrinkage (D) Increases strength
Last Answer : Answer: Option C
Description : The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as (A) Low-heat Portland cement (B) Rapid hardening Portland cement (C) Portland blast slag cement (D) Portland pozzolana cement
Description : Addition of pozzolana to ordinary port land cement, causes (A) Decrease in early strength (B) Reduction in chemical action with sulphates (C) Increase in shrinkage (D) All the above
Description : Quick setting cement is produced by adding (A) Less amount of gypsum in very fine powdered form (B) More amount of gypsum in very fine powdered form (C) Aluminium sulphate in very fine powdered form (D) Pozzolana in very fine powdered form
Description : Portland pozzolana cement possesses (A) Higher resistance to chemical attack (B) Lower heat of hydration (C) Lower shrinkage on drying (D) All the above
Description : Name the type of cement from the following for canal linings: (A) Sulphate resisting cement (B) Rapid hardening cement (C) Quick setting cement (D) Pozzolana cement
Description : Addition of pozzolana to ordinary Portland cement increases (A) Bleeding (B) Shrinkage (C) Permeability (D) Heat of hydration
Description : Pozzolana (or surkhi) is used in lime (A) To impart hydraulicity (B) To prevent shrinkage (C) To decrease the cost of construction (D) To decrease the setting time
Description : Under reamed piles are generally used for (A) Machine foundations (B) Factory building (C) Tall structures (D) All the above
Description : Which one of the following statements is true? (A) Clays are more porous than sands (B) Pressure of organic matter in a soil decreases the bearing capacity of the soil (C) Aluminous cement is used for foundations in soils with chemical deposits (D) All the above
Last Answer : (D) All the above
Description : Which cement should not be used for bridge slabs ro RCC frames a) OPC b) Portland Pozzolana cement * c) Portland furnace slag cement d) Rapid hardening cement
Last Answer : b) Portland Pozzolana cement *
Description : You are asked to construct a massive dam, the type of cement you will use, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement
Description : Before constructing a dam, the factor to be considered for controlling sedimentation, is (A) Selection of dam site (B) Construction of check dams (C) Providing vegetation screens (D) All the above
Description : Water supply system includes (A) Digging a well for water (B) Construction of dams (C) Construction of canals (D) Entire arrangement from source to distribution
Last Answer : (D) Entire arrangement from source to distribution
Description : In a wet dock system, (A) Minimum required depth of water for the vessels is maintained (B) Entrance locks are provided with massive gates (C) The cost of construction is quite heavy (D) All the above
Description : I'm going to build a garden house. It won't be a big barracks, more like tools, but so are the basics to the ground important? What are they good for? We have a pretty rocky garden and I don't know if they'll dig.
Last Answer : You'll know after the first flood or a big wind why the basics are important.
Description : Why do we use deep foundations in construction?
Last Answer : Need answer
Description : Select the incorrect statement (A) Lean mixes bleed more as compared to rich ones. (B) Bleeding can be minimized by adding pozzolana finer aggregate (C) Bleeding can be increased by addition 'of calcium chloride (D) None of the above
Description : The initial setting time of lime-pozzolana, is (A) 30 minutes (B) 60 minutes (C) 90 minutes (D) 120 minutes
Description : Pozzolana is essentially a silicious material containing clay up to (a) 20% (b) 40% (c) 60% (d) 80%
Last Answer : (d) 80%
Description : Explain the various problems associated with the construction of large dams. Give examples in support of your answer. -Geography
Last Answer : Dam is built as the barrier to the flowing of water. It is constructed as the reservoir and it mostly improves the irrigation facility of the area. According to the height, dams can ... have been experienced the earthquake, flood and other natural calamities because of the construction of dams.
Description : Explain various problems associated with poor people due to construction of large dams. -SST 10th
Last Answer : (i) Construction of large dams leads to the large-scale displacement of the local communities. (ii) Local people have to give up their land and livelihood. (ii) Pbor people lose ... The landless people have to work as labourers in factories or construction sites. Their lives become miserable.
Description : Why do people oppose the construction of Tehri Dam on the river Ganga and Sardar sarover project on the river Narmada. (Or) Mention three disadvantage of producing hydroelectricity by ... construction of dams for production of electricity adversely affects the environment of that place. -Biology
Last Answer : Answer. Large area is required to build the dam that result rehabilitation of displaced people.Large eco-systems are destroyed when submerged under the water in dams.The vegetation which is submerged rots ... and gives rise to large amounts of methane gas which leads to a green-house effect.
Description : How does construction of dams and canals create employment in large numbers in rural areas? (a) Large number of engineers are needed
Last Answer : Take the case of Laxmi with her two-hectare plot of unirrigated land. The government can ... (d) Executives and administrators can easily be adjusted
Description : To check the expansion of Thar desert which one of the following methods is expected to yield the best results? (a) Artificial rain (b) Construction of canals (c) Afforestation (d) Construction of Dams
Last Answer : Ans: (c)
Description : Deccan Plateau is suitable for construction of _____________ a. Dams b. Bridges c. Tanks d. Wells
Last Answer : c. Tanks
Description : Which of the following is the suitable location for the construction of dams in a folded terrain? (A) Crest of the fold (B) Trough of the fold (C) Limbs of the fold (D) None of these
Last Answer : (C) Limbs of the fold
Description : Pick up the correct statement from the following: (A) For thin structures subjected to wetting and drying, the water cement ratio should be 0.45 (B) For mass concrete structures subjected to wetting and ... under water, the water-cement ratio by weight should be 0.55 (D) All the above
Description : Low heat cement is used in (a) Thin structures (b) Thick structures (c) Sea structures (d) Submarine structures
Last Answer : (b) Thick structures
Description : Knowledge of hydrology is necessary for civil engineers for (A) Designing and construction of irrigation structures (B) Designing and construction of bridges and culverts (C) Flood control works (D) All the above
Description : Construction joints are provided (A) Where B.M. and S.F. are small (B) Where the member is supported by other member (C) At 18 m apart in huge structures (D) All the above
Description : For the construction of the retaining structures, the type of concrete mix to be used, is (A) 1 : 3 : 6 (B) 1 : 2 : 4 (C) 1 : 1½ : 3 (D) 1 : 4 : 8
Description : For construction of structures under water, the type of lime used, is (A) Hydraulic lime (B) Fat lime (C) Quick lime (D) Pure lime
Description : The minimum depth of building foundations on (A) Sandy soils is 80 cm to 100 cm (B) Clay soils is 90 cm to 160 cm (C) Rocky soils is 5 cm to 50 cm (D) All the above
Description : Pile foundations are generally preferred to for (A) Bridge foundations (B) Sky scrapper buildings (C) Residential buildings (D) Runways
Description : If the foundations of all the columns of a structure are designed on the total live and dead load basis, then (A) There will be no settlement of columns (B) There will be no ... will be more than interior columns (D) The settlement of interior columns will be more than exterior columns
Description : Lime concrete is generally used for (A) Wall foundations (B) Flooring at ground level (C) Both (A) and (B) (D) Neither (A) nor (b)
Description : Black cotton soil is unsuitable for foundations because its (A) Bearing capacity is low (B) Permeability is uncertain (C) Particles are cohesive (D) Property to undergo a volumetric change due to variation of moisture content
Description : Pile foundations are suitable for (A) Water logged soils (B) Soft rocks (C) Compact soils (D) Multi-storeyed buildings
Description : The depth of excavation of foundations, is generally measured with a (A) Ranging rod (B) Steel tape (C) Levelling staff (D) Boning rod