InterviewSolution

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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.	For concrete exposed to a very aggressive environment the w/c should be lower than _________(a) 1(b) .5(c) .4(d) .8This question was addressed to me in my homework.The query is from Water Cement Ratio topic in division Strength of Concrete of Concrete Technology
Answer» RIGHT answer is (C) .4 Easy EXPLANATION: Higher is the aggressiveness of the ENVIRONMENT lower should be the w/c ratio. For concrete EXPOSED to a very aggressive environment, the w/c should be lower than 0.40.

52.	What is the range of water in M15?(a) 34-36L(b) 29-32L(c) 26-30L(d) 21-27LThe question was asked in a job interview.Query is from Water Cement Ratio topic in division Strength of Concrete of Concrete Technology
Answer» CORRECT answer is (b) 29-32L Explanation: The RANGE of water for M15 (1:2:4) is 29 to 32 liters with a WEIGHT of 313kg of CEMENT.

53.	Power showed that the strength of concrete bears a specific relationship with the gel/space ratio. He found the relationship to be__________(a) 240x^3(b) 140x^3(c) 240x^2(d) 140x^2I had been asked this question during an interview.My doubt stems from Gel Space Ratio topic in chapter Strength of Concrete of Concrete Technology
Answer» Right answer is (a) 240x^3 For EXPLANATION I WOULD say: Power’s experiment SHOWED that the STRENGTH of concrete BEARS a specific relationship with the gel/space ratio. He found the relationship to be 240 x^3.

54.	What is the approximate quantity of water in M5?(a) 60L(b) 45L(c) 34L(d) 85LThe question was posed to me in homework.Enquiry is from Water Cement Ratio in chapter Strength of Concrete of Concrete Technology
Answer» Right answer is (a) 60L To explain I would say: The APPROXIMATE quantity of water in GRADE M5 is nearly equal to 60 LITERS.

55.	Who has established the relation between the strength and gel/space ratio?(a) Abrams(b) Power(c) Brownyard(d) Power and BrownyardThe question was posed to me in an online interview.Query is from Gel Space Ratio topic in division Strength of Concrete of Concrete Technology
Answer» The CORRECT OPTION is (d) POWER and Brownyard For EXPLANATION: Powers and Brownyard have established the relationship between the STRENGTH and gel/space ratio.

56.	A lower ratio leads to _____(a) High strength(b) Low strength(c) Low durability(d) Ease to workThis question was posed to me by my school teacher while I was bunking the class.My doubt stems from Water Cement Ratio topic in portion Strength of Concrete of Concrete Technology
Answer» The correct answer is (a) High STRENGTH To explain I WOULD SAY: A lower ratio leads to higher strength and DURABILITY, but may make the mix difficult to work with and form.