Workability of a concrete – mix is determined by (i)Slump cone test (ii)Compaction factor test (iii)Vee bee test [ A ] i [ B ] ii [ C ] i and ii [ D ] i, ii and iii

Workability of a concrete – mix is determined by
(i)Slump cone test
(ii)Compaction factor test
(iii)Vee bee test
[ A ] i
[ B ] ii
[ C ] i and ii
[ D ] i, ii and iii
by

1 Answer

Answer :

[ D ] i, ii and iii
by

Related questions

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

Description : 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

Last Answer : [ C ] Compaction factor test

While determining the workability of concrete mix, the compaction factor test is ------than the slump cone test [ A ] Less accurate [ B ] More accurate [ C ] Approximate method [ D ] None of the above

Description : While determining the workability of concrete mix, the compaction factor test is ------than the slump cone test [ A ] Less accurate [ B ] More accurate [ C ] Approximate method [ D ] None of the above

Last Answer : [ B ] More accurate

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

Description : 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

Last Answer : Answer: Option C

Slump cone test is used to determine [ A ] Shrinkage of concrete mix [ B ] Creep of concrete [ C ] Workability of concrete mix [ D ] Soundness of concrete

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Last Answer : [ C ] Workability of concrete mix

The workability of concrete is expressed by (a) Water-cement ratio (b) Slump value (c) Compaction factor (d) Both (a) and (b)

Description : The workability of concrete is expressed by (a) Water-cement ratio (b) Slump value (c) Compaction factor (d) Both (a) and (b)

Last Answer : (d) Both (a) and (b)

Explain the procedure for measurement of workability of fresh concrete using slump cone test.

Description : Explain the procedure for measurement of workability of fresh concrete using slump cone test.

Last Answer : Test Procedure: i. Clean the mould from inside and apply oil to it. ii. Place the mould on smooth horizontal, rigid & non-absorbent surface or the centre of metallic tray. iii. Fill the mould ... top of cone. vi. Based on measured slump, the degree of workability is designated as follows.

If the slump of a concrete mix is 60 mm, its workability is (A) Very low (B) Low (C) Medium (D) High

Description : If the slump of a concrete mix is 60 mm, its workability is (A) Very low (B) Low (C) Medium (D) High

Last Answer : Answer: Option C

Pick up the correct statement from the following: (A) Higher workability indicates unexpected increase in the moisture content (B) Higher workability indicates deficiency of sand (C) If the concrete mix is dry, the slump is zero (D) All the above

Description : Pick up the correct statement from the following: (A) Higher workability indicates unexpected increase in the moisture content (B) Higher workability indicates deficiency of sand (C) If the concrete mix is dry, the slump is zero (D) All the above

Last Answer : Answer: Option D

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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Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Segregation is necessary for a workable concrete (B) Consistency does not affect the workability of concrete (C) If the concrete mix is dry, the slump is maximum (D) None of these

Description : Pick up the correct statement from the following: (A) Segregation is necessary for a workable concrete (B) Consistency does not affect the workability of concrete (C) If the concrete mix is dry, the slump is maximum (D) None of these

Last Answer : Answer: Option D

If the slump of a concrete mix is 50 to 100 mm, its workability is [ A ] Very low [ B ] Low [ C ] Medium [ D ] High

Description : If the slump of a concrete mix is 50 to 100 mm, its workability is [ A ] Very low [ B ] Low [ C ] Medium [ D ] High

Last Answer : [ C ] Medium

The Vee-Bee test is suitable for concrete mixes of low and very low workabilities (a) True (b) False (c) Not known (d) All the above

Description : The Vee-Bee test is suitable for concrete mixes of low and very low workabilities (a) True (b) False (c) Not known (d) All the above

Last Answer : (a) True

Wp and Wf are the weights of a cylinder containing partially compacted and fully compacted concrete. If the compaction factor (Wp/Wf ) is 0.95, the workability of concrete is (A) Extremely low (B) Very low (C) Low (D) High

Description : Wp and Wf are the weights of a cylinder containing partially compacted and fully compacted concrete. If the compaction factor (Wp/Wf ) is 0.95, the workability of concrete is (A) Extremely low (B) Very low (C) Low (D) High

Last Answer : Option D

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

Workability of concrete is measured by (A) Vicat apparatus test (B) Slump test (C) Minimum void method (D) Talbot Richa

Description : Workability of concrete is measured by (A) Vicat apparatus test (B) Slump test (C) Minimum void method (D) Talbot Richa

Last Answer : Answer: Option B

Slump test for concrete is carried out, to determine (A) Strength (B) Durability (C) Workability (D) Water content

Description : Slump test for concrete is carried out, to determine (A) Strength (B) Durability (C) Workability (D) Water content

Last Answer : Answer: Option C

Suggest the degree of workability in terms of slump for the following: i) Pavements using pavers ii) Canal lining iii) Heavily reinforced sections iv) In-situ piling

Description : Suggest the degree of workability in terms of slump for the following: i) Pavements using pavers ii) Canal lining iii) Heavily reinforced sections iv) In-situ piling

Last Answer : Degree of workability in terms of slump for the following: i) Pavements using pavers: 25-75 mm ii) Canal lining: 70-80 mm iii) Heavily reinforced sections: 50-100 mm iv) In-situ piling: 100-150 mm

For high degree of workability , the compaction factor is (a) 0.65 (b) 0.75 (c) 0.85 (d) 0.95

Description : For high degree of workability , the compaction factor is (a) 0.65 (b) 0.75 (c) 0.85 (d) 0.95

Last Answer : (d) 0.95

As the workability increases compaction factor [ A ] Decreases [ B ] Increases [ C ] Remains same [ D ] None of the above

Description : As the workability increases compaction factor [ A ] Decreases [ B ] Increases [ C ] Remains same [ D ] None of the above

Last Answer : [ B ] Increases

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

The steel mould used for slump test is in the form of a (a) Cube (b) Cylinder (c) Frustrum of a cone (d) None of these

Description : The steel mould used for slump test is in the form of a (a) Cube (b) Cylinder (c) Frustrum of a cone (d) None of these

Last Answer : (c) Frustrum of a cone

The process of consolidating concrete mix after placing it in position is termed as. (a) Curing (b) Wetting (c) Compaction (d) All of these

Description : The process of consolidating concrete mix after placing it in position is termed as. (a) Curing (b) Wetting (c) Compaction (d) All of these

Last Answer : (c) Compaction

Workability of concrete is inversely proportional to (A) Time of transit (B) water-cement ratio (C) The air in the mix (D) Size of aggregate

Description : Workability of concrete is inversely proportional to (A) Time of transit (B) water-cement ratio (C) The air in the mix (D) Size of aggregate

Last Answer : Answer: Option A

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

Description : 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

Last Answer : Answer: Option A

Suggest the compaction factor for the following degree of workability.

Description : Suggest the compaction factor for the following degree of workability.

Last Answer : Suggest the compaction factor for the following degree of workability.

Describe the procedure for determination of workability by compaction factor method.

Description : Describe the procedure for determination of workability by compaction factor method.

Last Answer : Procedure for determination of workability by compaction factor method: The procedure of determining the workability of concrete using compaction factor as per IS: 1199-1959 is as follows. 1. Take the freshly ... upon calculated C.F., the degree of workability can be designated as follows. 

For high degree of workability, the slump value should vary between (a) 0 to 25mm (b) 25 to 50mm (c) 50 to 80mm (d) 80 to 100mm

Description : For high degree of workability, the slump value should vary between (a) 0 to 25mm (b) 25 to 50mm (c) 50 to 80mm (d) 80 to 100mm

Last Answer : (d) 80 to 100mm

The field density and field moisture content of a soil can be determined by 1. Core cutter method 2. Sand replacement method 3. Proctor compaction test 4. Modified proctor compaction test (a) 1, 2, 3 & 4 (b) 1 & 2 only (c) 2 & 3 only (d) 2 & 4 only

Description : The field density and field moisture content of a soil can be determined by 1. Core cutter method 2. Sand replacement method 3. Proctor compaction test 4. Modified proctor compaction test (a) 1, 2, 3 & 4 (b) 1 & 2 only (c) 2 & 3 only (d) 2 & 4 only

Last Answer : (b) 1 & 2 only

For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be (A) 0.75 - 0.80 (B) 0.80 - 0.85 (C) 0.85 - 0.92 (D) Above 0.92

Description : For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be (A) 0.75 - 0.80 (B) 0.80 - 0.85 (C) 0.85 - 0.92 (D) Above 0.92

Last Answer : Answer: Option D

Slump test of concrete is a measure of its (A) Consistency (B) Compressive strength (C) Tensile strength (D) Impact value

Description : Slump test of concrete is a measure of its (A) Consistency (B) Compressive strength (C) Tensile strength (D) Impact value

Last Answer : (A) Consistency

Slump test of concrete is a measure of its (A) Consistency (B) Compressive strength (C) Tensile strength (D) Impact value

Description : Slump test of concrete is a measure of its (A) Consistency (B) Compressive strength (C) Tensile strength (D) Impact value

Last Answer : (A) Consistency

Slump test is done for (A) Clay (B) Sand (C) Lime (D) Concrete

Description : Slump test is done for (A) Clay (B) Sand (C) Lime (D) Concrete

Last Answer : Answer: Option D

In slump test, each layer of concrete is compacted by a steel rod 60 cm long and of 16 mm diameter for (A) 20 times (B) 25 times (C) 30 times (D) 50 time

Description : In slump test, each layer of concrete is compacted by a steel rod 60 cm long and of 16 mm diameter for (A) 20 times (B) 25 times (C) 30 times (D) 50 time

Last Answer : Answer: Option B

The slump test of concrete is used to measure its (a) Consistency (b) Mobility (c) Homogeneity (d) All the above

Description : The slump test of concrete is used to measure its (a) Consistency (b) Mobility (c) Homogeneity (d) All the above

Last Answer : (a) Consistency

Slump test of concrete is a measure of its [ A ] Consistency [ B ] Compressive strength [ C ] Tensile strength [ D ] Impact value

Description : Slump test of concrete is a measure of its [ A ] Consistency [ B ] Compressive strength [ C ] Tensile strength [ D ] Impact value

Last Answer : [ A ] Consistency

Increase in water content in a cement concrete (i) Increases workability (ii) Increases the strength [ A ] i [ B ] ii [ C ] both (i) and (ii) [ D ] neither (i) nor (ii)

Description : Increase in water content in a cement concrete (i) Increases workability (ii) Increases the strength [ A ] i [ B ] ii [ C ] both (i) and (ii) [ D ] neither (i) nor (ii)

Last Answer : [ A ] i

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

To indicate proper control of consistency of a freshly mixed concrete for pavement construction, the slump should be between (A) 3 to 5 cm (B) 4 to 6 cm (C) 5 to 7 cm(D) 7 to 10 cm

Description : To indicate proper control of consistency of a freshly mixed concrete for pavement construction, the slump should be between (A) 3 to 5 cm (B) 4 to 6 cm (C) 5 to 7 cm (D) 7 to 10 cm

Last Answer : Answer: Option D

While compacting the concrete by a mechanical vibrator, the slump should not exceed (A) 2.5 cm (B) 5.0 cm (C) 7.5 cm (D) 10 cm

Description : While compacting the concrete by a mechanical vibrator, the slump should not exceed (A) 2.5 cm (B) 5.0 cm (C) 7.5 cm (D) 10 cm

Last Answer : Answer: Option B

A concrete having a slump of 6.5 cm, is said to be (A) Dry (B) Earth moist (C) Semi-plastic (D) Plastic

Description : A concrete having a slump of 6.5 cm, is said to be (A) Dry (B) Earth moist (C) Semi-plastic (D) Plastic

Last Answer : Answer: Option D

For lime concrete, (A) Slump is 50 to 75 mm (B) Flexural strength at 90 days is 0.2 N/mm2 (C) Compressive strength at 90 days is 1.5 N/mm2 (D) All the above

Description : For lime concrete, (A) Slump is 50 to 75 mm (B) Flexural strength at 90 days is 0.2 N/mm2 (C) Compressive strength at 90 days is 1.5 N/mm2 (D) All the above

Last Answer : Answer: Option D

The slump recommended for mass concrete is about (A) 25 mm to 50 mm (B) 50 mm to 100 mm (C) 100 mm to 125 mm (D) 125 mm to 150 mm

Description : The slump recommended for mass concrete is about (A) 25 mm to 50 mm (B) 50 mm to 100 mm (C) 100 mm to 125 mm (D) 125 mm to 150 mm

Last Answer : Answer: Option A

The concrete slump recommended for beams and slabs; is (A) 25 to 50 mm (B) 25 to 75 mm (C) 30 to 125 mm (D) 50 to 100 mm

Description : The concrete slump recommended for beams and slabs; is (A) 25 to 50 mm (B) 25 to 75 mm (C) 30 to 125 mm (D) 50 to 100 mm

Last Answer : Answer: Option C

The concrete slump recommended for columns, is (A) 25 to 50 mm (B) 25 to 75 mm (C) 75 to 125 mm (D) 50 to 100

Description : The concrete slump recommended for columns, is (A) 25 to 50 mm (B) 25 to 75 mm (C) 75 to 125 mm (D) 50 to 100 mm

Last Answer : Answer: Option C

The concrete slump recommended for foundations, is (A) 25 to 50 mm (B) 30 to 125 mm (C) 50 to 100 mm (D) 75 to 125 mm

Description : The concrete slump recommended for foundations, is (A) 25 to 50 mm (B) 30 to 125 mm (C) 50 to 100 mm (D) 75 to 125 mm

Last Answer : Answer: Option C

An instrument used to measure soil compaction is: a Hydrometer b Cone penetrometer c Tachometer d Hygrometer

Description : An instrument used to measure soil compaction is: a Hydrometer b Cone penetrometer c Tachometer d Hygrometer

Last Answer : b Cone penetrometer

The compaction of concrete, improves (A) Density (B) Strength (C) Durability (D) All the abov

Description : The compaction of concrete, improves (A) Density (B) Strength (C) Durability (D) All the abov

Last Answer : (D) All the above

Concrete is unsuitable for compaction by a vibrator if it is (A) Dry (B) Earth moist (C) Semi-plastic (D) Plastic

Description : Concrete is unsuitable for compaction by a vibrator if it is (A) Dry (B) Earth moist (C) Semi-plastic (D) Plastic

Last Answer : Answer: Option D

The produce impermeable concrete (A) Thorough mixing of concrete is required (B) Proper compaction of concrete is required (C) Proper curing of concrete is required (D) All the above

Description : The produce impermeable concrete (A) Thorough mixing of concrete is required (B) Proper compaction of concrete is required (C) Proper curing of concrete is required (D) All the above

Last Answer : Answer: Option D

Non-uniform compaction may cause the concrete (A) Porous (B) Non-homogeneous (C) Reduced strength (D) All the above

Description : Non-uniform compaction may cause the concrete (A) Porous (B) Non-homogeneous (C) Reduced strength (D) All the above

Last Answer : Answer: Option D