The strength and quality of concrete, depend upon: (A) Grading of aggregates (B) Surface area of aggregates (C) Shape of aggregates (D) All the above

The strength and quality of concrete, depend upon:
(A) Grading of aggregates
(B) Surface area of aggregates
(C) Shape of aggregates
(D) All the above
by

1 Answer

Answer :

Answer: Option D
by

Related questions

The strength and quality of concrete depends upon (i)Grading of aggregates (ii)Shape of aggregates (iii)Surface area of aggregates (iv)Surface texture of aggregates [ A ] i, ii and iv [ B ] ii, iii and iv [ C ] i, iii and iv [ D ] i, ii, iii and iv

Description : The strength and quality of concrete depends upon (i)Grading of aggregates (ii)Shape of aggregates (iii)Surface area of aggregates (iv)Surface texture of aggregates [ A ] i, ii and iv [ B ] ii, iii and iv [ C ] i, iii and iv [ D ] i, ii, iii and iv

Last Answer : [ D ] i, ii, iii and iv

The bulk density of aggregates does not depend upon: (A) Size and shape of aggregates (B) Specific gravity of aggregates (C) Grading of aggregates (D) Size and shape of the container

Description : The bulk density of aggregates does not depend upon: (A) Size and shape of aggregates (B) Specific gravity of aggregates (C) Grading of aggregates (D) Size and shape of the container

Last Answer : Answer: Option D

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

Description : 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

Last Answer : Answer: Option D

The strength of durability of concrete depends upon. (a) Size of aggregates (b) Grading of aggregates (c) Moisture contents of aggregates (d) All of these.

Description : The strength of durability of concrete depends upon. (a) Size of aggregates (b) Grading of aggregates (c) Moisture contents of aggregates (d) All of these.

Last Answer : (d) All of these.

The bulk density of aggregates, depends upon (A) Shape (B) Grading (C) Compaction (D) All the above

Description : The bulk density of aggregates, depends upon (A) Shape (B) Grading (C) Compaction (D) All the above

Last Answer : Answer: Option D

For given workability the grading requiring the least amount of water is one that gives (A) Greatest surface area for the given cement and aggregates (B) Least surface area for the given cement and aggregates (C) Least weight for the given cement and aggregates (D) Greatest weight for the given cement and aggregates

Description : For given workability the grading requiring the least amount of water is one that gives (A) Greatest surface area for the given cement and aggregates (B) Least surface area for the given cement ... weight for the given cement and aggregates (D) Greatest weight for the given cement and aggregates

Last Answer : Answer: Option A

Pick up the correct statement from the following: (A) According to the petrological characteristics, concrete aggregates are classified as heavy weight, normal weight and light weight (B) According to the shape of the particles, concrete aggregates are classified as rounded irregular, angular and flaky (C) According to the surface texture of the particles, the concrete aggregates are classified as glassy, smooth, granular, rough, crystalline, honey combed and porous (D) All the above

Description : Pick up the correct statement from the following: (A) According to the petrological characteristics, concrete aggregates are classified as heavy weight, normal weight and light weight (B) According to ... glassy, smooth, granular, rough, crystalline, honey combed and porous (D) All the above

Last Answer : Answer: Option D

Grading of sand causes great variation in (A) Workability of concrete (B) Strength of concrete (C) Durability of concrete (D) All the above

Description : Grading of sand causes great variation in (A) Workability of concrete (B) Strength of concrete (C) Durability of concrete (D) All the above

Last Answer : (D) All the above

C.R.R.I. charts are used to obtain a relationship between strength of concrete and (A) Water cement ratio (B) Workability (C) Grading of aggregate (D) Fineness modulus

Description : C.R.R.I. charts are used to obtain a relationship between strength of concrete and (A) Water cement ratio (B) Workability (C) Grading of aggregate (D) Fineness modulus

Last Answer : Answer: Option A

I.S. Sieve Nos. 10 mm and 4.75 mm are generally used for grading of (A) Coarse aggregates (B) Fine aggregates (C) Neither (a) nor (b) (D) Both (a) and (b)

Description : I.S. Sieve Nos. 10 mm and 4.75 mm are generally used for grading of (A) Coarse aggregates (B) Fine aggregates (C) Neither (a) nor (b) (D) Both (a) and (b)

Last Answer : Answer: Option D

If a grading curve is horizontal between the portions of 20 mm I.S. Sieve and 4.75 mm I.S. Sieve, the graded aggregates do not contain (A) 20 mm particles (B) 10 mm particles (C) 4.75 mm particles (D) All the above

Description : If a grading curve is horizontal between the portions of 20 mm I.S. Sieve and 4.75 mm I.S. Sieve, the graded aggregates do not contain (A) 20 mm particles (B) 10 mm particles (C) 4.75 mm particles (D) All the above

Last Answer : Answer: Option D

The maximum amount of dust which may be permitted in aggregates is (A) 5% of the total aggregates for low workability with a coarse grading (B) 10% of the total aggregates for low workability with a fine grading (C) 20% of the total aggregates for a mix having high workability with fine grading (D) All the above

Description : The maximum amount of dust which may be permitted in aggregates is (A) 5% of the total aggregates for low workability with a coarse grading (B) 10% of the total aggregates for low workability with ... of the total aggregates for a mix having high workability with fine grading (D) All the above

Last Answer : Answer: Option D

Index number expressing the relative sizes of both coarse and fine aggregates, is called (A) Proportioning of aggregates (B) Fineness modulus (C) Grading of aggregates (D) None of these

Description : Index number expressing the relative sizes of both coarse and fine aggregates, is called (A) Proportioning of aggregates (B) Fineness modulus (C) Grading of aggregates (D) None of these

Last Answer : Answer: Option B

The internal friction between the ingredients to concrete is minimized by (a) Adopting coarse aggregates (b) Using more water (c) Reducing the surface area (d) All of these

Description : The internal friction between the ingredients to concrete is minimized by (a) Adopting coarse aggregates (b) Using more water (c) Reducing the surface area (d) All of these

Last Answer : (d) All of these

Which of the following tests measures the toughness of road aggregates? (A) Crushing strength test (B) Abrasion test (C) Impact test (D) Shape test

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Last Answer : Answer: Option C

For a good concrete (A) Aggregates should be hard and durable (B) Water should be free from organic materials (C) Cement should be sufficient to produce the required strength (D) All the above

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Last Answer : Answer: Option D

The 28 days cube strength of mass concrete using aggregates of maximum size 5 cm for gravity dams should be (A) Between 150 to 300 kg/cm2 (B) Between 350 to 600 kg/cm2 (C) Between 150 to 500 kg/cm2 (D) Below 200 kg/cm2

Description : The 28 days cube strength of mass concrete using aggregates of maximum size 5 cm for gravity dams should be (A) Between 150 to 300 kg/cm2 (B) Between 350 to 600 kg/cm2 (C) Between 150 to 500 kg/cm2 (D) Below 200 kg/cm2

Last Answer : Answer: Option D

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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Last Answer : Answer: Option A

Pick up the correct statement from the following: (A) Water cement paste hardens due to hydration (B) During hardening cement binds the aggregates together (C) Cement provides strength, durability and water tightness to the concrete (D) All the above

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Last Answer : Answer: Option D

Concrete gains strength due to (A) Chemical reaction of cement with sand and coarse aggregates (B) Evaporation of water from concrete (C) Hydration of cement (D) All the above

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Last Answer : Answer: Option C

Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C) Curing of concrete is done for proper compaction of cement (D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates

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Concrete gains strength due to [ A ] Chemical reaction of cement with sand and coarse aggregates [ B ] Evaporation of water from concrete [ C ] Hydration of cement [ D ] All the above

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Last Answer : Answer: Option D

According to the rule of water cement ratio, the strength of concrete wholly depends upon. (a) The quality of cement. (b) The quality of cement mixed with aggregate. (c) The amount of water used in preparation of concrete mix. (d) All of the above

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Last Answer : (c) The amount of water used in preparation of concrete mix.

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

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Last Answer : (D) Shape and porosity of the body

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Last Answer : (D) Shape and porosity of the body

The torsion resisting capacity of a given reinforced concrete section. (a) Decreases with decrease in stirrups spacing. (b) Decreases with increase in longitudinal bars. (c) Does not depend upon stirrups and longitudinal steels. (d) Increases with increase in stirrups and longitudinal steels.

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Evaporation losses depend upon (A) Area of the water surface and depth of the water (B) Nature of precipitation and type of vegetation (C) Humidity and wind velocity (D) All the above

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In the grading process, eggs are examined for both interior and exterior quality and are sorted according to ____. a. color c. weight b. shape d. breed

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Illustrate the effect of properties of coarse aggregates on compressive strength of concrete.

Description : Illustrate the effect of properties of coarse aggregates on compressive strength of concrete.

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The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known (A) Grading (B) Curing (C) Mixing (D) Batching

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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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Last Answer : Answer: Option D

Workability of concrete is directly proportional to (A) Aggregate cement ratio (B) Time of transit (C) Grading of the aggregate (D) All of above

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The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known as [ A ] Curing [ B ] Mixing [ C ] Grading [ D ] Batching

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With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will (A) Decrease (B) Increase (C) Remain unchanged (D) Depend upon the characteristics of liquid

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The coefficient of friction depends on (A) Area of contact (B) Shape of surfaces (C) Strength of surfaces (D) Nature of surface

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Radiation heat transfer rates does not depend upon the (A) Type of absorbing surface (B) Distance between the heat source and the object receiving the heat (C) Surface area and temperature of the heat source (D) None of these

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Thermal conductivity of a material does not depend upon its (A) Mass (B) Volume (C) Surface area (D) All 'a', 'b' & 'c'

Description : Thermal conductivity of a material does not depend upon its (A) Mass (B) Volume (C) Surface area (D) All 'a', 'b' & 'c'

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Pick up the correct statement from the following: (A) Water enables chemical reaction to take place with cement (B) Water lubricates the mixture of gravel, sand and cement (C) Strength of concrete structure largely depends upon its workability (D) All the above

Description : Pick up the correct statement from the following: (A) Water enables chemical reaction to take place with cement (B) Water lubricates the mixture of gravel, sand and cement (C) Strength of concrete structure largely depends upon its workability (D) All the above

Last Answer : (D) All the above

Allowable shear strength of concrete, depends upon (A) Shear strength (B) Tensile strength (C) Compressive strength (D) None of these

Description : Allowable shear strength of concrete, depends upon (A) Shear strength (B) Tensile strength (C) Compressive strength (D) None of these

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The factor which affects workability, is (A) Water content and its temperature (B) Shape and size of the aggregates (C) Air entraining agents (D) All the above

Description : The factor which affects workability, is (A) Water content and its temperature (B) Shape and size of the aggregates (C) Air entraining agents (D) All the above

Last Answer : (D) All the above

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Last Answer : (b) Angular

The aggregates of __________________-shape have manimum voids (a) Irregular (b) Angular (c)Rounded (d) Flaky

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When each particle of aggregates is thinly coated with cement paste, a heterogeneous solid is formed, which is known as (A) Hydration (B) Gel (C) Concrete (D) None of these

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Last Answer : Answer: Option C

Which of the following represents a carpet of sand-bitumen mix without coarse aggregates? (A) Mastic asphalt (B) Sheet asphalt (C) Bituminous carpet (D) Bituminous concrete

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Last Answer : Answer: Option B

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For given water content, workability decreases if the concrete aggregates contain an excess of (A) Thin particles (B) Flat particles (C) Elongated particles (D) All the above

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Last Answer : (D) All the above

While designing an air entrained concrete (A) Water cement ratio is reduced (B) Proportion of aggregates is reduced (C) An allowance for the entrained air is made (D) All the above

Description : While designing an air entrained concrete (A) Water cement ratio is reduced (B) Proportion of aggregates is reduced (C) An allowance for the entrained air is made (D) All the above

Last Answer : (D) All the above