InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Mid-range water reducers result in at least _________ %.(a) 2(b) 4(c) 6(d) 8I got this question in class test.My question comes from Admixtures topic in portion Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct choice is (d) 8 |
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| 52. |
Pick up the correct statement from the following.(a) Calcium fluosilicates act as a retarders(b) CaCl2 acts as a retarders(c) Gypsum acts as a retarders(d) Gypsum acts as an acceleratorsI had been asked this question by my college professor while I was bunking the class.This intriguing question originated from Accelerators and Retarders in chapter Admixtures and Construction Chemicals of Concrete Technology |
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Answer» The correct OPTION is (c) GYPSUM acts as a retarders |
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| 53. |
At normal temperatures addition of sugar _____________ per cent have little effect on the rate of hydration.(a) .5-1(b) 1-2(c) .05-.1(d) .1-.2I got this question in semester exam.The origin of the question is Accelerators and Retarders topic in portion Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct answer is (c) .05-.1 |
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| 54. |
Water proofing admixtures are available in powder, paste or liquid and gaesous form.(a) True(b) FalseThis question was posed to me during an interview.I would like to ask this question from Water Proofing Admixtures in portion Admixtures and Construction Chemicals of Concrete Technology |
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Answer» The correct ANSWER is (b) False |
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| 55. |
Specific Gravity of silica fume.(a) 2.38(b) 2.65(c) 2.94(d) 2.22This question was posed to me in semester exam.The origin of the question is Silica Fume topic in division Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct ANSWER is (d) 2.22 |
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| 56. |
Concrete containing silica fume can have very __________ strength and can be very __________(a) Low, Durable(b) High, Durable(c) Low, brittle(d) High, brittleI have been asked this question during an online exam.The doubt is from Silica Fume topic in division Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct CHOICE is (b) High, Durable |
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| 57. |
What is the allowed reduction of water with super plasticizers without reducing workability?(a) 10%(b) 20%(c) 30%(d) 40%The question was asked at a job interview.My doubt is from Plasticizers topic in portion Admixtures and Construction Chemicals of Concrete Technology |
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| 58. |
Damp proofing is cheaper in the beginning, but leads to more expensive problems later on.(a) True(b) FalseThis question was posed to me in an online interview.My enquiry is from Damp Proofing Admixtures topic in division Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct OPTION is (a) True |
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| 59. |
What is the main function of set retarders?(a) Increase curing rate(b) Slows curing rate(c) Improves workability at low w/c ratio(d) Speeds up start of finishing operationsThe question was posed to me during an interview for a job.Origin of the question is Admixtures in section Admixtures and Construction Chemicals of Concrete Technology |
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| 60. |
Admixtures which cause early setting, and hardening of concrete are called __________(a) Plasticizers(b) Retarders(c) Super plasticizer(d) AcceleratorsThe question was posed to me in an interview for job.My question is based upon Admixtures in section Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Right ANSWER is (d) Accelerators |
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| 61. |
Find the odd one out.(a) Finely divided minerals(b) Air entraining agents(c) Synthetic derivatives(d) Natural derivativesThis question was addressed to me during an interview.My question is taken from Agents in chapter Admixtures and Construction Chemicals of Concrete Technology |
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| 62. |
Content of CaO in silica fume?(a) 5(b) 21(c) 40(d) |
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Answer» Correct option is (d) <1 |
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| 63. |
Where do we use plasticizers?(a) Where low degree of workability is required(b) Where medium degree of workability is required(c) Where high degree of workability is required(d) Where very low degree of workability is requiredI have been asked this question in unit test.This intriguing question originated from Plasticizers in division Admixtures and Construction Chemicals of Concrete Technology |
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Answer» RIGHT option is (c) Where high DEGREE of workability is REQUIRED To explain: Where low degree of workability is required like DEEP beams, column and beam junctions. |
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| 64. |
Entrapped air normally exists in the form of relatively _________ air voids.(a) Small(b) Absent(c) Large(d) MediumI had been asked this question during an online interview.I'd like to ask this question from Damp Proofing Admixtures in chapter Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Right CHOICE is (c) Large |
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| 65. |
Which one is not part of chemical and mineral admixtures?(a) Curing compounds(b) GGBFS(c) Metakaoline(d) PumicitesThis question was posed to me by my school teacher while I was bunking the class.Query is from Agents topic in division Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct choice is (a) Curing compounds |
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| 66. |
Silica fume is ______________(a) Less reactive(b) Neutral(c) More reactive(d) Absent in concreteI got this question by my school principal while I was bunking the class.Question is taken from Silica Fume topic in portion Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct choice is (c) More reactive |
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| 67. |
Retarders used at grouting oil wells, where temperature is about _____________ ^oC.(a) 100(b) 150(c) 200(d) 250This question was addressed to me in an internship interview.This interesting question is from Accelerators and Retarders topic in section Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct OPTION is (C) 200 |
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| 68. |
Which of the following option doesn’t come in mineral admixtures?(a) Set retarders(b) Blast Furnace Slag(c) Flyash(d) Silica FumeI had been asked this question in unit test.The origin of the question is Admixtures in portion Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Right answer is (a) Set retarders |
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| 69. |
Find the odd one out.(a) Water reducing plasticizers(b) Water reducing plasticizers(c) High performance plasticizers(d) Super plasticizersThis question was posed to me during an interview.I want to ask this question from Agents in section Admixtures and Construction Chemicals of Concrete Technology |
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Answer» The CORRECT answer is (d) Super PLASTICIZERS |
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| 70. |
What is the content of SiO2 in fly ash?(a) 30-60%(b) 15-30%(c) Up to 30%(d) 1-7%This question was posed to me during an interview for a job.Question is taken from Agents in chapter Admixtures and Construction Chemicals of Concrete Technology |
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Answer» CORRECT CHOICE is (a) 30-60% To explain: The content of SiO2 in fly ash has been tested ACCORDING to PROCEDURES specified in IS: 1727-1967. |
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| 71. |
Content of SiO2 in silica fume is ___________(a) 52%(b) 35%(c) 21.9%(d) 85-97%I had been asked this question in quiz.My query is from Silica Fume in chapter Admixtures and Construction Chemicals of Concrete Technology |
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Answer» The correct option is (d) 85-97% |
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| 72. |
What is the limitation of plasticizers?(a) A good plasticizer is one which does not cause air-entrainment in concrete > .1-.2%(b) A good plasticizer is one which does not cause air-entrainment in concrete > 5%(c) A good plasticizer is one which does not cause air-entrainment in concrete > 10-20%(d) A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%I had been asked this question by my college professor while I was bunking the class.The above asked question is from Plasticizers in division Admixtures and Construction Chemicals of Concrete Technology |
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Answer» Correct OPTION is (d) A GOOD plasticizer is ONE which does not cause air-entrainment in CONCRETE > 1-2% |
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| 73. |
What is the amount used of plasticizers in cement by weight?(a) 0(b) .1-.4%(c) 1%(d) 1-2%I have been asked this question at a job interview.Origin of the question is Plasticizers in portion Admixtures and Construction Chemicals of Concrete Technology |
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Answer» CORRECT OPTION is (B) .1-.4% Best EXPLANATION: PLASTICIZERS are used in the amount of 0.1 percentage to 0.4 percentage by weight of cement. |
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| 74. |
Nomenclature of water proofing agent.(a) PC(b) KIM(c) PCKIM(d) WPI got this question by my school principal while I was bunking the class.I'd like to ask this question from Damp Proofing Admixtures topic in chapter Admixtures and Construction Chemicals of Concrete Technology |
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Answer» The correct OPTION is (b) KIM |
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