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

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
by

1 Answer

Answer :

Answer: Option B
by

Related questions

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

Description : 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 ... D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates

Last Answer : Option D

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 X, Y and Z are the fineness modulli of coarse, fine and combined aggregates, the percentage (P) of fine aggregates to combined aggregates, is (A) P = [(Z - X)/(Z - Y)] × 100 (B) P = [(X - Z)/(Z - Y)] × 100 (C) P = [(X - Z)/(Z + Y)] × 100 (D) P = [(Z + X)/(Z - Y)] × 100

Description : If X, Y and Z are the fineness modulli of coarse, fine and combined aggregates, the percentage (P) of fine aggregates to combined aggregates, is (A) P = [(Z - X)/(Z - Y)] × 100 (B) P = [(X - Z)/(Z - Y)] × 100 (C) P = [(X - Z)/(Z + Y)] × 100 (D) P = [(Z + X)/(Z - Y)] × 100

Last Answer : Option B

If fineness modulus of sand is 2.5, it is graded as (A) Very fine sand (B) Fine sand (C) Medium sand (D) Coarse

Description : If fineness modulus of sand is 2.5, it is graded as (A) Very fine sand (B) Fine sand (C) Medium sand (D) Coarse

Last Answer : Answer: Option B

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

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

If 20 kg of coarse aggregate is sieved through 80 mm, 40 mm, 20 mm, 10 mm, 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 kg, 2 kg, 8 kg, 6 kg, 4 kg respectively, the fineness modulus of the aggregate, is (A) 7.30 (B) 7.35 (C) 7.40 (D) 7.45

Description : If 20 kg of coarse aggregate is sieved through 80 mm, 40 mm, 20 mm, 10 mm, 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 kg, 2 kg, 8 kg, ... , the fineness modulus of the aggregate, is (A) 7.30 (B) 7.35 (C) 7.40 (D) 7.45

Last Answer : Answer: Option C

If th fineness modules of sand is 3, then the sand is graded as (a) Very fine sand (b) Fine sand (c)Medium sand (d) Coarse sand

Description : If th fineness modules of sand is 3, then the sand is graded as (a) Very fine sand (b) Fine sand (c)Medium sand (d) Coarse sand

Last Answer : (d) Coarse sand

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

Description : 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 ... aggregates of 40mm, 20mm and 10mm sizes are commonly used for concrete works (d) All the above

Last Answer : (d) All the above

The fineness modulus of fine aggregate is in the range of (A) 2.0 to 3.5 (B) 3.5 to 5.0 (C) 5.0 to 7.0 (D) 6.0 to 8.5

Description : The fineness modulus of fine aggregate is in the range of (A) 2.0 to 3.5 (B) 3.5 to 5.0 (C) 5.0 to 7.0 (D) 6.0 to 8.5

Last Answer : (A) 2.0 to 3.5

Pick up the correct statement from the following: (A) The theory of formation of concrete is based on the phenomena of formation of voids (B) The bulking of sand is taken into account while volumetric proportioning of the aggregates (C) The dry sand and the sand completely flooded with water, have practically the same volume (D) All the above

Description : Pick up the correct statement from the following: (A) The theory of formation of concrete is based on the phenomena of formation of voids (B) The bulking of sand is taken into account while ... sand and the sand completely flooded with water, have practically the same volume (D) All the above

Last Answer : Answer: Option D

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

Description : 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

Last Answer : Answer: Option D

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

Description : 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

Last Answer : Answer: Option C

In the method of voids for determination of the quantity of cement paste, it is assumed that (A) Voids in coarse aggregates are filled by fine aggregates (B) Voids in fine aggregates are filled by the cement paste (C) Volume of fine aggregates is equal to total voids in coarse aggregates plus 10% extra (D) All the above

Description : In the method of voids for determination of the quantity of cement paste, it is assumed that (A) Voids in coarse aggregates are filled by fine aggregates (B) Voids in fine aggregates are filled by ... of fine aggregates is equal to total voids in coarse aggregates plus 10% extra (D) All the above

Last Answer : Answer: Option D

If P, Y and Z are the weights of cement, fine aggregates and coarse aggregates respectively and W/C is the water cement ratio, the minimum quantity of water to be added to first batch, is obtained by the equation (A) 0.1P + 0.3Y + 0.1Z = W/C × P (B) 0.3P + 0.1Y + 0.01Z = W/C × P (C) 0.4P + 0.2Y + 0.01Z = W/C × P (D) 0.5P + 0.3Y + 0.01Z = W/C × P

Description : If P, Y and Z are the weights of cement, fine aggregates and coarse aggregates respectively and W/C is the water cement ratio, the minimum quantity of water to be added to first batch, is obtained by the equation (A) 0.1P + 0.3Y + 0. ... + 0.2Y + 0.01Z = W/C P (D) 0.5P + 0.3Y + 0.01Z = W/C P

Last Answer : Answer: Option B

Internal friction between the ingredients of concrete, is decreased by using (A) Less water (B) Fine aggregates (C) Rich mix (D) More water and coarse aggregates

Description : Internal friction between the ingredients of concrete, is decreased by using (A) Less water (B) Fine aggregates (C) Rich mix (D) More water and coarse aggregates

Last Answer : Answer: Option D

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

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

Last Answer : (d) All of these

Sand that is recommended for R.C.C work should have fineness modulus. (a) 0-2 (b) 2-3.5 (c) 3-4.5 (d) 4-5

Description : Sand that is recommended for R.C.C work should have fineness modulus. (a) 0-2 (b) 2-3.5 (c) 3-4.5 (d) 4-5

Last Answer : (b) 2-3.5

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

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

Description : 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

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

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

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

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 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

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

Description : 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

Last Answer : Answer: Option B

For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is (A) Dry rolling, wet rolling, application of screening and application of filler (B) Dry rolling, application of filler, wet rolling and application of screening (C) Dry rolling, application of screening, wet rolling and application of filler (D) Dry rolling, application of screening, application of filler and wet rolling

Description : For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is (A) Dry rolling, wet rolling, application of screening and application of ... of filler (D) Dry rolling, application of screening, application of filler and wet rolling

Last Answer : Answer: Option C

The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.4, is (A) 30 % (B) 40 % (C) 50 % (D) 60 %

Description : The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.4, is (A) 30 % (B) 40 % (C) 50 % (D) 60 %

Last Answer : (C) 50 %

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

Separation of coarse aggregates from mortar during transportation, is known (A) Bleeding (B) Creeping (C) Segregation (D) Shrinkage

Description : Separation of coarse aggregates from mortar during transportation, is known (A) Bleeding (B) Creeping (C) Segregation (D) Shrinkage

Last Answer : Answer: Option C

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

Description : 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

Last Answer : Answer: Option C

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

The proportion of coarse aggregates to fire aggregates in structural concrete is usually [ A ] 0.50 - 1.25 [ B ] 1.25 - 4.50 [ C ] 1.50 - 2.50 [ D ] 0.25 - 0.75

Description : The proportion of coarse aggregates to fire aggregates in structural concrete is usually [ A ] 0.50 - 1.25 [ B ] 1.25 - 4.50 [ C ] 1.50 - 2.50 [ D ] 0.25 - 0.75

Last Answer : [ C ] 1.50 - 2.50

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

Description : 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

Last Answer : [ C ] Hydration of cement

A sand sample has a fineness modulus of 1.95. Whether this sand can be used for concreting? Explain the procedure to bring the fineness modulus in required permissible limits. State its importance.

Description : A sand sample has a fineness modulus of 1.95. Whether this sand can be used for concreting? Explain the procedure to bring the fineness modulus in required permissible limits. State its importance.

Last Answer : The given sand sample has a fineness modulus 1.95, which is less than prescribed limit i.e.2.2-3.2. It indicates that sand particles are finer, which is not suitable for satisfactory ... . Well graded sand is also useful for good bonding of particles and related strength criteria of concrete.

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.

Last Answer : Effect of properties of coarse aggregates on compressive strength of concrete. i. Size of aggregate: If coarse aggregate particles are of large size (say 20 mm) in concrete mixture , then ... of strength. But if water absorption is less concrete becomes as per proportion giving required strength.

Pick up the correct statement from the following: (A) The dry density reduces by addition of water after attaining optimum moisture content (B) The line joining the peak of three moisture content graphs obtained by using three compactive energies, is called line of optimus (C) Well graded coarse grained soils can be compacted to a very high density as compared to fine grained soils (D) All the above

Description : Pick up the correct statement from the following: (A) The dry density reduces by addition of water after attaining optimum moisture content (B) The line joining the peak of three moisture content graphs ... be compacted to a very high density as compared to fine grained soils (D) All the above

Last Answer : Answer: Option D

The size of fine aggregates does not exceed (A) 2.75 mm (B) 3.00 mm (C) 3.75 mm (D) 4.75 mm

Description : The size of fine aggregates does not exceed (A) 2.75 mm (B) 3.00 mm (C) 3.75 mm (D) 4.75 mm

Last Answer : Answer: Option D

The size of fine aggregates does not exceed [ A ] 2.75 mm [ B ] 3.75 mm [ C ] 4.75 mm [ D ] 5.75 mm

Description : The size of fine aggregates does not exceed [ A ] 2.75 mm [ B ] 3.75 mm [ C ] 4.75 mm [ D ] 5.75 mm

Last Answer : [ C ] 4.75 mm

Proper proportioning of concrete, ensures (A) Desired strength and workability (B) Desired durability (C) Water tightness of the structure (D) All the above

Description : Proper proportioning of concrete, ensures (A) Desired strength and workability (B) Desired durability (C) Water tightness of the structure (D) All the above

Last Answer : Option D

The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning (A) 1 : 1 : 2 (B) 1 : 2 : 4 (C) 1 : 3 : 6 (D) 1 : 4 : 10

Description : The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning (A) 1 : 1 : 2 (B) 1 : 2 : 4 (C) 1 : 3 : 6 (D) 1 : 4 : 10

Last Answer : Answer: Option D

The correct proportioning of various ingredients of concrete largely (a) Bulking of sand (b) Water context (c) Absorption (d) All the above

Description : The correct proportioning of various ingredients of concrete largely (a) Bulking of sand (b) Water context (c) Absorption (d) All the above

Last Answer : (d) All the above

The strainer type tube well, is unsuitable for (A) Coarse gravels (B) Fine sandy strata (C) Clean gravels (D) None of these

Description : The strainer type tube well, is unsuitable for (A) Coarse gravels (B) Fine sandy strata (C) Clean gravels (D) None of these

Last Answer : (B) Fine sandy strata

The soil which contains finest grain particles, is (A) Coarse sand (B) Fine sand (C) Silt (D) Clay

Description : The soil which contains finest grain particles, is (A) Coarse sand (B) Fine sand (C) Silt (D) Clay

Last Answer : (D) Clay

For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as (A) Dry of OMC and wet of OMC (B) Wet of OMC and dry of OMC (C) Wet of OMC and wet of OMC (D) Dry of OMC and dry of OMC where OMC is optimum moisture content

Description : For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as (A) Dry of OMC and wet of OMC (B) Wet of OMC and dry of OMC (C) Wet of OMC and wet of OMC (D) Dry of OMC and dry of OMC where OMC is optimum moisture content

Last Answer : Answer: Option B

The most suitable material for the central impervious core of a zoned embankment type dam is (A) Clay (B) Coarse sand (C) Silty clay (D) Clay mixed with fine sand

Description : The most suitable material for the central impervious core of a zoned embankment type dam is (A) Clay (B) Coarse sand (C) Silty clay (D) Clay mixed with fine sand

Last Answer : Answer: Option D

The void ratio of (A) Single size coarse aggregate is roughly 0.45 (B) Graded coarse aggregate is roughly 0.040 (C) Fine aggregate is roughly 0.45 (D) All the abo

Description : The void ratio of (A) Single size coarse aggregate is roughly 0.45 (B) Graded coarse aggregate is roughly 0.040 (C) Fine aggregate is roughly 0.45 (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Bulking of sand is caused due to formation of a thin film of surface moisture (B) Fine sand bulks more than coarse sand (C) The volume of fully saturated sand, is equal to the volume of dry and loose sand (D) All the above

Description : Pick up the correct statement from the following: (A) Bulking of sand is caused due to formation of a thin film of surface moisture (B) Fine sand bulks more than coarse sand (C) The volume of fully saturated sand, is equal to the volume of dry and loose sand (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) The maximum size of a coarse aggregate, is 75 mm and minimum 4.75 mm (B) The maximum size of the fine aggregate, is 4.75 mm and minimum 0.075 mm (C) The material having particles of size varying from 0.06 mm to 0.002 mm, is known as silt (D) All the ab

Description : Pick up the correct statement from the following: (A) The maximum size of a coarse aggregate, is 75 mm and minimum 4.75 mm (B) The maximum size of the fine aggregate, is 4.75 mm and minimum 0.075 mm ( ... having particles of size varying from 0.06 mm to 0.002 mm, is known as silt (D) All the ab

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38% (B) The bulking of fine sand is more than that of coarse sand (C) If the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing (D) All the above

Description : Pick up the correct statement from the following: (A) Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38% (B) The bulking of fine sand is ... the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing (D) All the above

Last Answer : Answer: Option D