Inert material of a cement concrete mix, is [ A ] Water [ B ] Aggregate [ C ] Cement [ D ] None of these

Inert material of a cement concrete mix, is
[ A ] Water
[ B ] Aggregate
[ C ] Cement
[ D ] None of these
by

1 Answer

Answer :

[ B ] Aggregate
by

Related questions

Inert material of a cement concrete mix, is (A) Water (B) Cement (C) Aggregate (D) None of these

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The ratio of differenct ingredients (cement, sand and aggregate) in concrete mix of grade M20 is. (a) 1:1:2 (b) 1:1.5:2 (c) 1:2:4 (d) 1:3:6

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For preparing a test-specimen, it is necessary (A) To mix cement and fine aggregate by dry hand (B) To mix coarse aggregates (C) To mix water to the cement, fine aggregates and coarse aggregates (D) All the above

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Strength of concrete increases with (A) Increase in water-cement ratio (B) Increase in fineness of cement (C) Decrease in curing time (D) Decrease in size of aggregate

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Strength of cement concrete primarily depends upon (A) Quality of water (B) Quantity of aggregate (C) Quantity of cement (D) Water-cement

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The workability of concrete is mostly influenced by its [ A ] Water cement ratio [ B ] Aggregate cement ratio [ C ] Cement content [ D ] Water content

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For the construction of cement concrete floor, the maximum permissible size of aggregate, is (A) 4 mm (B) 6 mm (C) 8 mm (D) 10 mm

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According to IS : 382-1963, a good aggregate should be (A) Chemically inert (B) Sufficiently strong (C) Hard and durable (D) All the above

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The shrinkage of concrete (A) Is proportional to water content is the mix (B) Is proportional to cement concrete (C) Increases with age of concrete (D) All the above

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Pick up the correct statement from the following: (A) The weight of ingredients of concrete mix, is taken in kilograms (B) Water and aggregates are measured in litres (C) 20 bags of cement make one tonne (D) All the above

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According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D) All the above

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If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is (A) 8 kg (B) 10 kg (C) 12 kg (D) 14 kg

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Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the concrete (C) The slump of the concrete mix decreases due to an increase in temperature (D) All the above

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Workability of concrete mix with low water cement ratio is determined by (A) Tensile strength test (B) Slump test (C) Compaction factor test (D) Flexural strength test

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The basic purpose of a retarder in concrete is (A) To increase the initial setting time of cement paste in concrete (B) To decrease the initial setting time of cement paste in concrete (C) To render the concrete more water tight (D) To improve the workability of concrete mix

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The factors which effects the design of concrete mix is (a) Fineness modulus (b) Water cement ratio (c) Slump (d) All of these

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Workability of concrete mix with low water cement ratio is determined by [ A ] Tensile strength test [ B ] Slump cone test [ C ] Compaction factor test [ D ] Flexural strength test

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Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5(C) 7.0 (D) 7.5

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Last Answer : Answer: Option B

After casting, an ordinary cement concrete on drying (A) Expands (B) Mix (C) Shrinks (D) None of these

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For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: (A) 70 litres of sand and 120 litres of aggregates (B) 70 kg of sand and 140 litres of aggregates (C) 105 litres of sand and 140 litres of aggregates (D) 105 litres of sand and 210 litres of aggregates

Description : For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: (A) 70 litres of sand and 120 litres of aggregates (B) 70 kg of sand and 140 litres of ... C) 105 litres of sand and 140 litres of aggregates (D) 105 litres of sand and 210 litres of aggregates

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Explain the importance of water/cement ratio in the concrete mix.

Description : Explain the importance of water/cement ratio in the concrete mix.

Last Answer : Importance of water/cement ratio in the concrete mix : i. The W/C ratio plays very vital role in concrete mixture. The improper or random selection of W/C ratio leads in ... opted out properly as mentioned above, then concrete possess good workability, compressive strength and durability ultimately.

The risk of segregation is more for (A) Wetter mix (B) Larger proportion of maximum size aggregate (C) Coarser grading (D) All the above

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For constructing a terrazzo floor, Pick up the incorrect statement from the following: (A) A base course is prepared as in cement concrete flooring (B) A 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling (C) Glass strips are driven into the layer according to the pattern required (D) After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material

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The maximum quantity of aggregate per 50kg of cement should not axceed. (a) 100kg (b) 200kg (c) 350kg (d) 450kg

Description : The maximum quantity of aggregate per 50kg of cement should not axceed. (a) 100kg (b) 200kg (c) 350kg (d) 450kg

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Workability of concrete for a given water content is good if the aggregates, are (A) Rounded aggregate (B) Irregular aggregate (C) Angular aggregate (D) Flaky aggregate

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Pick up the incorrect statement from the following: (A) Horizontal D.P.C. is provided at plinth level in internal walls (B) D.P.C. is provided under door and verandah openings (C) Vertical D.P.C. is not provided in internal walls (D) Cement concrete is a rigid damp-proofing material

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In designing concrete structures, normally maximum aggregate sizes are adopted with ranges from 10mm to 20mm. Does an increase of maximum aggregate size benefit the structures?

Description : In designing concrete structures, normally maximum aggregate sizes are adopted with ranges from 10mm to 20mm. Does an increase of maximum aggregate size benefit the structures?

Last Answer : To answer this question, let's consider an example of a cube. The surface area to volume ratio of a cube is 6/b where b is the length of the cube. This implies that ... requirement can offset the disadvantages brought about by discontinuities as suggested by Longman Scientific and Technical (1987).

For ensuring quality of concrete, use (A) Single sized aggregates (B) Two sized aggregate (C) Graded aggregates (D) Coarse aggregates

Description : For ensuring quality of concrete, use (A) Single sized aggregates (B) Two sized aggregate (C) Graded aggregates (D) Coarse aggregates

Last Answer : (C) Graded aggregates

In order to obtain the best workability of concrete, the preferred shape of aggregate is (A) Rounded (B) Elongated (C) Angular (D) All of the above

Description : In order to obtain the best workability of concrete, the preferred shape of aggregate is (A) Rounded (B) Elongated (C) Angular (D) All of the above

Last Answer : Answer: Option A

Pick up the correct statement from the following: (A) Continuous grading is not necessary for obtaining a minimum of air voids (B) The omission of a certain size of aggregate is shown by a straight horizontal line on the grading curve (C) The omission of a certain size of aggregate in concrete increases the workability but also increases the liability to segregation (D) All the above

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The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is (A) Rounded aggregate (B) Irregular aggregate (C) Angular aggregate (D) Flaky aggregat

Description : The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is (A) Rounded aggregate (B) Irregular aggregate (C) Angular aggregate (D) Flaky aggregat

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The aggregate impact value of the aggregate used in (A) Building concrete is less than 45 (B) Road pavement concrete is less than 30 (C) Runway concrete is less than 30 (D) All the above

Description : The aggregate impact value of the aggregate used in (A) Building concrete is less than 45 (B) Road pavement concrete is less than 30 (C) Runway concrete is less than 30 (D) All the above

Last Answer : Answer: Option D

If the engineer-in-charge approves, the 10 cm cubes may be used for the work test of concrete provided maximum nominal size of aggregate, does not exceed (A) 10 cm (B) 15 cm (C) 20 cm (D) 25 cm

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Pick up the correct statement from the following: (A) A highly absorptive aggregate reduces the workability of concrete considerably (B) The specific gravity of aggregate is important for the determination of the moisture content (C) The absorption and porosity of an aggregate influence the property of the concrete (D) All the above

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For the improvement of work ability of concrete , the shape of aggregate recommended is (a) Irregular (b) Angular (c) Round (d) Flaky

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Which of the following statement is correct (a) The maximum size of coarse aggregate should not exceed one fourth of the minimum dimension of the plain concrete member. (b) The maximum size of coarse aggregate should not exceed one fifty of the minimum dimension of the reinforced concrete member (c)The aggregates of 40mm, 20mm and 10mm sizes are commonly used for concrete works (d) All the above

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For the manufacture of concrete a low density, the aggregate used is (a) Furnace clinker (b) Coke breeze (c)Saw dust (d) All the above

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