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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.

1.

Quality management system _________ perception of customers towards company.(a) Improves(b) Deprove(c) Recede(d) WorsenThe question was asked at a job interview.This intriguing question originated from Quality Management in Concrete Construction topic in portion Quality Control of Concrete Technology

Answer»

The correct choice is (a) Improves

The explanation: Quality management system improves PERCEPTION of customers towards company due to CREDIBLE quality PERSONNEL and quality PRACTICES.

2.

During compression test of cast iron, the failure occurs i.e. the crack appears along the __________(a) Diagonal(b) Surface parallel to load applied(c) Surface perpendicular to load applied(d) LateralThe question was asked in an interview for internship.The origin of the question is Factors Causing Variation in the Quality of Concrete in portion Quality Control of Concrete Technology

Answer»

The CORRECT ANSWER is (a) Diagonal

For explanation: The FAILURE occurs i.e. the CRACK appears along the diagonal during the compression TEST of cast iron.

3.

The basic requirement for the success of any quality control plan is the availability of experienced, knowledgeable and trained personnel at all levels.(a) True(b) FalseI got this question by my college professor while I was bunking the class.I want to ask this question from Advantages of Quality Control in division Quality Control of Concrete Technology

Answer»

Right choice is (a) True

Explanation: It is the very basic requirement for the SUCCESS of any quality control PLAN is the availability of experienced, KNOWLEDGEABLE and TRAINED personnel at all levels.

4.

Content of SiO2 in silica fume?(a) 52%(b) 35%(c) 21.9%(d) 85-97%This question was posed to me in examination.The query is from Factors Causing Variation in the Quality of Concrete topic in division Quality Control of Concrete Technology

Answer»

The correct answer is (d) 85-97%

Explanation: The CONTENT of SIO2 in silica fume is 85-97%. 35% is the content of SiO2 in CALCAREOUS (ASTM C618 Class C) Fly ASH.

5.

What C172 test under the Standard ASTM test method?(a) Test Method for Sampling Freshly Mixed Concrete(b) Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method(c) Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method(d) Test Method for Temperature of Freshly Mixed Portland-Cement ConcreteI got this question during an interview.The question is from Flaws in Concrete and Remedial Measures, Quality of Concrete topic in section Quality Control of Concrete Technology

Answer»

Correct option is (a) TEST METHOD for SAMPLING Freshly Mixed Concrete

Explanation: According to STANDARD ASTM test methods to evaluate field-placed concrete C172 test is for Test Method for Sampling Freshly Mixed Concrete.

6.

Quality of construction activities will be tracked by quality management documents.(a) True(b) FalseThis question was addressed to me in an interview for internship.I would like to ask this question from Quality Management in Concrete Construction topic in chapter Quality Control of Concrete Technology

Answer» RIGHT option is (a) True

To EXPLAIN: Quality of construction activities will be TRACKED by quality MANAGEMENT documents and becomes a record for future reference.
7.

It opens the area of improvement for quality construction rationally based on the documents from __________ projects.(a) Previous(b) Next(c) Later(d) FutureThe question was asked by my school teacher while I was bunking the class.This question is from Quality Management in Concrete Construction topic in section Quality Control of Concrete Technology

Answer»

Correct answer is (a) PREVIOUS

For explanation I would say: It opens the AREA of IMPROVEMENT for QUALITY construction rationally BASED on the documents from previous projects.

8.

Quality control helps to ___________ the risks of overdesign that ___________ the overall cost.(a) Maximize, Increase(b) Minimize, Increase(c) Maximize, Decrease(d) Minimize, DecreaseThe question was posed to me by my school teacher while I was bunking the class.I need to ask this question from Quality Management in Concrete Construction topic in chapter Quality Control of Concrete Technology

Answer» CORRECT CHOICE is (d) Minimize, Decrease

Easy EXPLANATION: Quality control helps to minimize the risks of overdesign that REDUCES the overall cost.
9.

What C39 test under the Standard ASTM test method?(a) Test Method for Making and Curing Concrete Test Specimens in the Field(b) Test Method for Compressive Strength of Cylindrical Specimen(c) Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete(d) Test Method for Slump of Hydraulic Cement ConcreteI have been asked this question in an interview for job.I need to ask this question from Flaws in Concrete and Remedial Measures, Quality of Concrete in portion Quality Control of Concrete Technology

Answer» RIGHT answer is (b) TEST Method for Compressive Strength of Cylindrical Specimen

The EXPLANATION is: According to Standard ASTM test methods to evaluate field-placed CONCRETE C39 test is for Test Method for Compressive Strength of Cylindrical Specimen.
10.

___________ quality construction ___________ the wastage of materials.(a) Good, reduce(b) Bad, reduce(c) Good, increase(d) Bad, DecreaseThis question was addressed to me in an interview for job.My question is based upon Advantages of Quality Control topic in portion Quality Control of Concrete Technology

Answer»

The correct choice is (a) Good, reduce

The explanation is: Good quality CONSTRUCTION reduces the wastage of materials, smooth function of the team and keeps the construction COST within the LIMIT.

11.

Generally what is the w/c ratio?(a) .25(b) .5(c) .75(d) 1The question was asked in an international level competition.The question is from Factors Causing Variation in the Quality of Concrete topic in section Quality Control of Concrete Technology

Answer»

The correct OPTION is (B) .5

The best I can explain: Generally the water cement RATIO is .42-.5 and if it EXCEEDS it will create PORES in concrete.

12.

Quality management system improves perception of customers towards company.(a) True(b) FalseThe question was asked in an international level competition.I want to ask this question from Advantages of Quality Control in portion Quality Control of Concrete Technology

Answer»

Right option is (a) True

Explanation: QUALITY management system improves the perception of customers towards COMPANY due to credible quality PERSONNEL and quality PRACTICES.

13.

It __________ job-site concrete handling, and testing procedures to __________ potential liability to the company.(a) Improve, Increase(b) Improve, Decrease(c) Ruin, Decrease(d) Ruin, IncreaseThis question was posed to me in a job interview.This interesting question is from Advantages of Quality Control topic in division Quality Control of Concrete Technology

Answer»

The correct OPTION is (b) Improve, Decrease

The best explanation: It IMPROVES job-site concrete handling, CURING, sampling and testing PROCEDURES to reduce potential liability to the company.

14.

What C 231 test under the Standard ASTM test method?(a) Test Method for Sampling Freshly Mixed Concrete(b) Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method(c) Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method(d) Test Method for Temperature of Freshly Mixed Portland-Cement ConcreteThe question was posed to me during an interview.My query is from Flaws in Concrete and Remedial Measures, Quality of Concrete topic in section Quality Control of Concrete Technology

Answer»

Correct answer is (c) Test Method for AIR Content of Freshly MIXED CONCRETE by the PRESSURE Method

For explanation I would say: According to Standard ASTM test METHODS to evaluate field-placed concrete C231 test is for Air Content of Freshly Mixed Concrete by the Pressure Method.

15.

It __________ job-site concrete handling, curing, sampling and testing procedures.(a) Improves(b) Deprove(c) Recede(d) WorsenI had been asked this question during an online interview.I'd like to ask this question from Quality Management in Concrete Construction topic in portion Quality Control of Concrete Technology

Answer» RIGHT choice is (a) Improves

The best I can explain: It improves job-site concrete handling, CURING, sampling and TESTING procedures to REDUCE potential liability to the COMPANY.
16.

It opens the area of improvement for quality construction rationally based on the documents from ___________ projects.(a) Previous(b) Next(c) Later(d) FutureThis question was posed to me in an internship interview.My question comes from Factors Causing Variation in the Quality of Concrete topic in portion Quality Control of Concrete Technology

Answer»
17.

What C143 test under the Standard ASTM test method?(a) Test Method for Making and Curing Concrete Test Specimens in the Field(b) Test Method for Compressive Strength of Cylindrical Specimen(c) Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete(d) Test Method for Slump of Hydraulic Cement ConcreteI had been asked this question in final exam.This interesting question is from Flaws in Concrete and Remedial Measures, Quality of Concrete in chapter Quality Control of Concrete Technology

Answer»

The correct OPTION is (d) TEST Method for SLUMP of Hydraulic Cement Concrete

To elaborate: According to Standard ASTM test METHODS to evaluate field-placed concrete C143 test is for Test Method for Slump of Hydraulic Cement Concrete.

18.

What C31 test under the Standard ASTM test method?(a) Test Method for Making and Curing Concrete Test Specimens in the Field(b) Test Method for Compressive Strength of Cylindrical Specimen(c) Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete(d) Test Method for Slump of Hydraulic Cement ConcreteThe question was posed to me in an online interview.I'd like to ask this question from Flaws in Concrete and Remedial Measures, Quality of Concrete topic in division Quality Control of Concrete Technology

Answer»

The correct choice is (a) TEST Method for Making and Curing Concrete Test Specimens in the Field

To EXPLAIN: According to Standard ASTM test methods to EVALUATE field-placed concrete C31 test is for Test Method for Making and Curing Concrete Test Specimens in the Field.

19.

For walls, columns and vertical faces of all structural members, the form work is generally removed after __________(a) 24 to 48 hours(b) 3 days(c) 7 days(d) 14 daysThe question was posed to me during an interview.Question is from Advantages of Quality Control topic in section Quality Control of Concrete Technology

Answer»

Correct choice is (a) 24 to 48 HOURS

For EXPLANATION: For rapid hardening cement, 3/7 of the above PERIOD will be sufficient in all cases except vertical sides of SLABS, beams and columns which should be retained for 24 hours.

20.

What C173 test under the Standard ASTM test method?(a) Test Method for Sampling Freshly Mixed Concrete(b) Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method(c) Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method(d) Test Method for Temperature of Freshly Mixed Portland-Cement ConcreteI got this question in exam.Enquiry is from Flaws in Concrete and Remedial Measures, Quality of Concrete in portion Quality Control of Concrete Technology

Answer»

The CORRECT option is (b) TEST Method for Air Content of Freshly MIXED Concrete by the VOLUMETRIC Method

The explanation is: According to Standard ASTM test methods to EVALUATE field-placed concrete C173 test is for Air Content of Freshly Mixed Concrete by the Volumetric Method.

21.

The concrete mix should be designed in the laboratory with the materials to be used on site.(a) True(b) FalseI got this question in an interview for internship.Origin of the question is Quality Management in Concrete Construction in division Quality Control of Concrete Technology

Answer»

The CORRECT answer is (a) True

The EXPLANATION is: The concrete mix should be DESIGNED in the laboratory with the materials to be USED on SITE.

22.

The property of a material that resists penetration or indentation by means of abrasion or scratching is known as ____________(a) Strength(b) Hardness(c) Stiffness(d) ToughnessI got this question during an interview.My enquiry is from Factors Causing Variation in the Quality of Concrete topic in section Quality Control of Concrete Technology

Answer»

Right choice is (B) Hardness

The best explanation: The property of a MATERIAL that RESISTS penetration or indentation by means of ABRASION or SCRATCHING is known as hardness.

23.

What is the content of Al2O3 in fly ash?(a) 30-60%(b) 15-30%(c) Up to 30%(d) 1-7%I have been asked this question in a job interview.My question comes from Factors Causing Variation in the Quality of Concrete topic in portion Quality Control of Concrete Technology

Answer»

Correct CHOICE is (b) 15-30%

Explanation: The CONTENT of Al2O3 in fly ash has been tested ACCORDING to PROCEDURES specified in IS: 1727-1967.

24.

Good quality construction _________ the wastage of materials, smooth function of the team.(a) Increases(b) Decreases(c) Doesn’t effect(d) GainI have been asked this question in an online interview.The doubt is from Quality Management in Concrete Construction in chapter Quality Control of Concrete Technology

Answer»

The CORRECT option is (B) Decreases

Explanation: Good QUALITY CONSTRUCTION reduces the wastage of materials, smooth function of the team and keeps the construction cost within the limit.

25.

Quality control helps to ____________ the risks of overdesign that ___________ the overall cost.(a) Maximize, Increase(b) Minimize, Increase(c) Maximize, Decrease(d) Minimize, DecreaseI got this question during an interview.Question is taken from Advantages of Quality Control in section Quality Control of Concrete Technology

Answer»

The correct choice is (d) Minimize, Decrease

The best I can EXPLAIN: QUALITY CONTROL HELPS to minimize the risks of overdesign that reduces the overall cost.

26.

What C 1064 test under the Standard ASTM test method?(a) Test Method for Sampling Freshly Mixed Concrete(b) Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method(c) Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method(d) Test Method for Temperature of Freshly Mixed Portland-Cement ConcreteI had been asked this question in a job interview.My enquiry is from Flaws in Concrete and Remedial Measures, Quality of Concrete in chapter Quality Control of Concrete Technology

Answer» CORRECT choice is (d) Test Method for TEMPERATURE of FRESHLY Mixed Portland-Cement Concrete

To explain: ACCORDING to Standard ASTM test METHODS to evaluate field-placed concrete C1064 test is for Temperature of Freshly Mixed Portland-Cement Concrete.
27.

Silica fume is _________(a) Less reactive(b) Neutral(c) More reactive(d) Absent in concreteThe question was asked by my college director while I was bunking the class.The question is from Factors Causing Variation in the Quality of Concrete in section Quality Control of Concrete Technology

Answer» CORRECT choice is (C) More reactive

Best explanation: One of the most BENEFICIAL uses for silica fume is in concrete, because of its both properties, it is a very reactive POZZOLANA.
28.

Minimize the cost of repair and maintenance of the structure.(a) True(b) FalseI had been asked this question in examination.Question is taken from Quality Management in Concrete Construction topic in division Quality Control of Concrete Technology

Answer»

The correct ANSWER is (a) True

The best explanation: Minimize the cost of repair and maintenance of the structure after CONSTRUCTION due to QUALITY works.

29.

___________ cost of maintenance of the structure __________ construction due to quality works.(a) Maximize, after(b) Minimize, after(c) Maximize, before(d) Minimize, beforeI have been asked this question in unit test.Question is from Advantages of Quality Control in portion Quality Control of Concrete Technology

Answer»

The correct option is (B) Minimize, after

Best explanation: Minimize the cost of REPAIR and MAINTENANCE of the structure after CONSTRUCTION due to quality works.

30.

What C138 test under the Standard ASTM test method?(a) Test Method for Making and Curing Concrete Test Specimens in the Field(b) Test Method for Compressive Strength of Cylindrical Specimen(c) Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete(d) Test Method for Slump of Hydraulic Cement ConcreteI had been asked this question in an online interview.This question is from Flaws in Concrete and Remedial Measures, Quality of Concrete topic in division Quality Control of Concrete Technology

Answer»

The correct ANSWER is (c) TEST Method for Unit Weight, Yield, and Air Content (GRAVIMETRIC) of Concrete

Easy explanation: According to Standard ASTM test methods to EVALUATE field-placed concrete C138 test is for Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete.