The inert mineral material used for the manufacture of mortars and concrete is (a) Cement (b) Water (c) Aggregates (d) Admixture

The inert mineral material used for the manufacture of mortars and concrete is
(a) Cement
(b) Water
(c) Aggregates
(d) Admixture
by

1 Answer

Answer :

(c) Aggregates
by

Related questions

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

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

Last Answer : Answer: Option C

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

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

Last Answer : [ B ] Aggregate

Consider the following statements: Cement mortars richer than 1 : 3 are not used in masonry work because 1. There is no gain in strength of masonry 2. There is high shrinkage 3. They are prone to segregation Which of these statements are correct? (a) 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 and 3 only

Description : Consider the following statements: Cement mortars richer than 1 : 3 are not used in masonry work because 1. There is no gain in strength of masonry 2. There is high shrinkage 3. They are prone to segregation Which of these statements ... 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 and 3 only

Last Answer : (b) 1 and 2 only

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

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

Description : 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

Last Answer : Answer: Option D

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

Description : 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

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

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

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

Description : 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 ... The slump of the concrete mix decreases due to an increase in temperature (D) All the above

Last Answer : Answer: Option D

For preparing ordinary concrete, the quantity of water used, is (A) 5% by weight of aggregates plus 20% of weight of cement (B) 10% by weight of aggregates plus 10% of weight of cement (C) 5% by weight of aggregates plus 30% of weight of cement (D) 30% by weight of aggregates plus 10% of weight of cement

Description : For preparing ordinary concrete, the quantity of water used, is (A) 5% by weight of aggregates plus 20% of weight of cement (B) 10% by weight of aggregates plus 10% of weight of cement (C) ... aggregates plus 30% of weight of cement (D) 30% by weight of aggregates plus 10% of weight of cement

Last Answer : Answer: Option C

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

Description : 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

Last Answer : Answer: Option D

Concrete mainly consists of (A) Cement (B) Aggregates (C) Water (D) All the above

Description : Concrete mainly consists of (A) Cement (B) Aggregates (C) Water (D) All the above

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

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

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

Shrinkage in concrete can be reduced by using (i) Low water cement ratio (ii) More amount of cement in the concrete (iii) Presaturated aggregates [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii

Description : Shrinkage in concrete can be reduced by using (i) Low water cement ratio (ii) More amount of cement in the concrete (iii) Presaturated aggregates [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii

Last Answer : [ C ] i and iii

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

Description : 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

Last Answer : Answer: Option C

The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 200, is (A) 1 : 2 : 4 (B) 1 : 3 : 6 (C) 1 : 1½ : 3 (D) 1 : 1 : 2

Description : The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 200, is (A) 1 : 2 : 4 (B) 1 : 3 : 6 (C) 1 : 1½ : 3 (D) 1 : 1 : 2

Last Answer : (C) 1 : 1½ : 3

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

Last Answer : Answer: Option D

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 : 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

Last Answer : Answer: Option A

If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is (A) M 100 (B) M 150 (C) M 200 (D) M 250

Description : If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is (A) M 100 (B) M 150 (C) M 200 (D) M 250

Last Answer : Answer: Option A

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

A suitable admixture added at the time of preparing the concrete mix, makes the concrete (a) Water proof (b) Acid proof (c) Highly strong (d) All of the above

Description : A suitable admixture added at the time of preparing the concrete mix, makes the concrete (a) Water proof (b) Acid proof (c) Highly strong (d) All of the above

Last Answer : (d) All of the above

The most common admixture which is used to accelerate the initial set of concrete is (A) Gypsum (B) Calcium chloride (C) Calcium carbonate (D) None of the above

Description : The most common admixture which is used to accelerate the initial set of concrete is (A) Gypsum (B) Calcium chloride (C) Calcium carbonate (D) None of the above

Last Answer : Answer: Option B

The function of aggregates in concrete is to serve as (a) Binding material (b) Filler (c) Catalyst (d) All the above

Description : The function of aggregates in concrete is to serve as (a) Binding material (b) Filler (c) Catalyst (d) All the above

Last Answer : (b) Filler

Explain the significance of water reducing admixture in concrete with respect to properties of concrete.

Description : Explain the significance of water reducing admixture in concrete with respect to properties of concrete.

Last Answer : Significance of water reducing admixture in concrete: Water reducing admixtures are essential for several purposes. The effect of using such admixtures on concrete properties is described below. 1. Water ... strength. 7. The durability of concrete structures can be ensured by using these admixtures.

The Most common admixture used to accelerate the initial setting of concrete is a) Gypsum b) Calcium chloride* c) Calcium carbonate d) Calcium bicarbonate

Description : The Most common admixture used to accelerate the initial setting of concrete is a) Gypsum b) Calcium chloride* c) Calcium carbonate d) Calcium bicarbonate

Last Answer : b) Calcium chloride*

Name the mineral used in the manufacture of: (i) Cement (ii) Aluminium -Geography

Description : Name the mineral used in the manufacture of: (i) Cement (ii) Aluminium -Geography

Last Answer : Mineral used in the manufacturing of : (1) Cement—Limestone. (2) Aluminium—Bauxite (3) Synthetics—Petroleum

Name the mineral Which is used in the manufacture of cement. -SST 10th

Description : Name the mineral Which is used in the manufacture of cement. -SST 10th

Last Answer : Limestone is the mineral Which is used in the manufacture of cement.

Name the mineral used in the manufacture of Cement. -SST 10th

Description : Name the mineral used in the manufacture of Cement. -SST 10th

Last Answer : (i) Cement: Limestone (ii) Aluminium: Bauxite (iii) Synthetics: Mineral Oil

Percentage of pozzolanic material containing clay upto 80% used for the manufacture of pozzolana cement, is (A) 30 % (B) 40 % (C) 50 % (D) 60 %

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 %

The commonly used material in the manufacture of cement is (A) Sand stone (B) Slate (C) Lime stone (D) Graphite

Description : The commonly used material in the manufacture of cement is (A) Sand stone (B) Slate (C) Lime stone (D) Graphite

Last Answer : (C) Lime stone

The commonly used raw material in the manufacture of cement, is (A) Slate (B) Sand stone (C) Lime stone (D) Basalt

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

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 : 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

Last Answer : Answer: Option D

Batching error means inaccuracy in the quantity of (A) Aggregates (B) Cement (C) Water (D) All the above

Description : Batching error means inaccuracy in the quantity of (A) Aggregates (B) Cement (C) Water (D) All the above

Last 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 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

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

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

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

Description : 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

Last Answer : (D) All the above

An excess of flaky particles in concrete aggregates (A) Decreases the workability (B) Increases the quantity of water and sand (C) More than 15% are not desirable (D) All the above

Description : An excess of flaky particles in concrete aggregates (A) Decreases the workability (B) Increases the quantity of water and sand (C) More than 15% are not desirable (D) All the above

Last Answer : Answer: Option D

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

Description : 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

Last Answer : Answer: Option A

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

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

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

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

Description : Workability of concrete for a given water content is good, if the aggregates are [ A ] Rounded [ B ] Irregular [ C ] Angular [ D ] Flaky

Last Answer : [ A ] Rounded

The admixture of coarser particles like sand or silt to clay causes (A) Decrease in liquid limit and increase in plasticity index (B) Decrease in liquid limit and no change in plasticity index (C) Decrease in both liquid limit and plasticity index (D) Increase in both liquid limit and plasticity index

Description : The admixture of coarser particles like sand or silt to clay causes (A) Decrease in liquid limit and increase in plasticity index (B) Decrease in liquid limit and no change in plasticity index ... in both liquid limit and plasticity index (D) Increase in both liquid limit and plasticity index

Last Answer : Answer: Option C

The most commonly used admixture which prolongs the setting and hardening time is (A) Gypsum (B) Calcium chloride (C) Sodium silicate (D) All of the above

Description : The most commonly used admixture which prolongs the setting and hardening time is (A) Gypsum (B) Calcium chloride (C) Sodium silicate (D) All of the above

Last Answer : (A) Gypsum

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 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

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