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Concrete Technology MCQs with Answers & Solutions — Page 2 | Civexa

Subjects / Concrete Technology / MCQs

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Concrete Technology MCQs with answers

176 free questions — page 2 of 4. Open one to see the correct answer and the full solution.

Which of the following is not the feature of Self Compacting Concrete? i. A minimum slump flow of 250 mm ii. Sufficient amount of fines (< 0.125 mm)…Special Concretes
The process of 'Batching' during any construction activity refers to which of the following?Concrete Mixers
If P is the standard consistency of cement, the amount of water used in conducting the initial setting time test on cement isCement Testing
Which of the following is not a test for measuring the workability of concrete?Concrete Mix Design
What causes bulking of sand?Aggregates
Vicat’s apparatus is used to determine theCement Testing
The Aggregate Impact value of the aggregate used for _______Aggregates
If the fineness modulus of sand is 3, then the sand is graded asAggregates
Workability of Concrete can be measured byConcrete Mix Design
The grade of concrete corresponding to nominal mix proportions of 1:3:6 isConcrete Mix Design
Which of the following concrete has ability to heal its crack?Special Concretes
Bulking of sand is caused due toAggregates
If p is the standard consistency of cement, the amount of water used in conducting the initial setting time test on cement isCement Testing
The split tensile strength of M15 grade concrete when expressed as percentage of its compressive strength isStrength of Concrete
What is the minimum value of test results (in N/mm² ) for compressive strength compliance requirement for M20 grade concrete for standard deviation…Strength of Concrete
The compound which is responsible for early strength of concrete isBogue's Compounds
Which of the following Pozzolanic materials can be used as mineral admixtures in cement? i. Fly ash ii. Silica fume iii. Rice husk ash iv. MetakaolinAdmixtures
Which of the following statements is/are true for aggregates such as slag and crushed overburnt brick or tile which may be found suitable to be used…Aggregates
Which of the following statements is/are true for the size of the aggregate to be used with cement? i. The nominal maximum size of the coarse…Aggregates
What is the maximum permissible concentration of Chlorides (as Cl) for reinforced concrete works?Durability of Concrete
If Quartzite, Granite, Basalt and Limestone are the aggregates to be used, the coefficient of thermal expansion for concrete will be highest withAggregates
Which of the following benefits is most commonly associated with the use of fly ash in concrete production? i. Reduces water demand ii. Increases the…Admixtures
Which of the following statements is/are true for Class F fly ash? i. It contains of fly ash normally produced from the burning of anthracite or…Admixtures
Which one of the following compounds in cement is responsible for flash setting in the absence of gypsum?Bogue's Compounds
Which of the following statements are false? i. Well-graded aggregates are less workable ii. Angular and flaky aggregates are less workable iii.…Aggregates
The degree of workability of concrete is said to be ‘medium’, if it has slump ranges betweenConcrete Mix Design
What is the effect of replacing 5% cement by silica fume have on the properties of resultant concrete?Admixtures
w/c ratio is the ratio ofConcrete Mix Design
Addition of air entraining admixtureAdmixtures
Which of the following is not true regarding admixtures?Admixtures
SuperplasticizersAdmixtures
Which of the following is not an admixture?Admixtures
Concrete mix contains 5 liters of superplasticizer (specific gravity 1.2). Superplasticizer has 65% water by mass. Mass of active solids in the…Admixtures
Choose the correct statementAggregates
If you get a collapse slump in a slump test for concrete, it can be because ofStrength of Concrete
Accelerating admixtures in concrete can be used toAdmixtures
Which of the following is not true in general about self-compacting concrete?Special Concretes
Which of the following is not true for high strength concrete?Special Concretes
Which of the following damages are induced by corrosion in the reinforced concrete?Durability of Concrete
Which of the following is not the method for corrosion protection in concrete?Durability of Concrete
In the process of sulfate attack, volume expansion is primarily due toDurability of Concrete
Which compound in cement has the highest influence on the heat of hydration as per IS 4031 standards?Bogue's Compounds
According to IS 383:2016, the grading of fine aggregates is divided into ___ grading zones.Aggregates
According to IS 10262:2019, the workability of concrete for M40 grade is specified in terms ofConcrete Mix Design
Consider the following strengths of concrete: 1.Cube strength 2.Cylinder strength 3.Modulus of rupture The correct sequence of these strengths isStrength of Concrete
Why is the bulking of sand test performed?Aggregates
What is the standard size of the cube used in the compressive strength test of cement mortar as per IS code?Cement Testing
What is the standard consistency of cement defined as?Cement Testing
What apparatus is used to determine the standard consistency of cement?Cement Testing
Which of the following is a commonly used nominal mix ratio for M20 concrete?Concrete Mix Design

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