InterviewSolution
Saved Bookmarks
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.
| 1. |
What is the maximum limit (ppm) for chlorides in water?(a) 500(b) 1000(c) 2000(d) 1500I had been asked this question during an interview.My question comes from Use of Sea Water for Mixing of Concrete topic in portion Water of Concrete Technology |
|
Answer» Correct OPTION is (a) 500 |
|
| 2. |
What is the permissible limits for construction of chlorides in water for PCC work?(a) 200mg/l(b) 2000mg/l(c) 1000mg/l(d) 500mg/lThe question was asked by my college professor while I was bunking the class.The question is from Use of Sea Water for Mixing of Concrete in portion Water of Concrete Technology |
|
Answer» The correct ANSWER is (b) 2000mg/l |
|
| 3. |
Which of the following statement is incorrect?(a) Water is the most important and least expensive ingredient of concrete(b) Excess of water forms scum(c) Less amount of water may cause honeycombing(d) Mixing of water is used in the hydration of cement and provides lubrication between fine and coarse aggregates.This question was addressed to me by my college director while I was bunking the class.This key question is from Quality of Water topic in section Water of Concrete Technology |
|
Answer» The correct answer is (C) Less AMOUNT of WATER may cause honeycombing |
|
| 4. |
What is the permissible limits for construction of suspended matter in water?(a) 200mg/l(b) 2000mg/l(c) 3000mg/l(d) 500mg/lI had been asked this question in homework.Enquiry is from Quality of Water topic in section Water of Concrete Technology |
|
Answer» Correct option is (B) 2000mg/l |
|
| 5. |
What is the permissible limits for construction of chlorides in water for RCC work?(a) 200mg/l(b) 2000mg/l(c) 1000mg/l(d) 500mg/lI had been asked this question in a job interview.Enquiry is from Use of Sea Water for Mixing of Concrete topic in portion Water of Concrete Technology |
|
Answer» Correct answer is (c) 1000mg/l |
|
| 6. |
Presence of acid, alkali ___________(a) Increases the strength(b) Reduces the strength(c) Do effect the concrete(d) Depends upon the proportionI got this question during an online interview.Asked question is from Use of Sea Water for Mixing of Concrete topic in chapter Water of Concrete Technology |
|
Answer» The CORRECT OPTION is (b) REDUCES the strength |
|
| 7. |
The mineral oil if present in mixing for concrete __________(a) Improves strength(b) Reduces strength(c) Gives more slump(d) Gives a smooth surfaceThe question was asked by my school principal while I was bunking the class.This question is from Quality of Water topic in chapter Water of Concrete Technology |
|
Answer» The correct option is (a) IMPROVES STRENGTH |
|
| 8. |
What is the permissible limits for construction of sulphates in water?(a) 200mg/l(b) 2000mg/l(c) 1000mg/l(d) 500mg/lI have been asked this question at a job interview.This intriguing question originated from Use of Sea Water for Mixing of Concrete in portion Water of Concrete Technology |
|
Answer» CORRECT CHOICE is (d) 500mg/l To EXPLAIN I WOULD SAY: 500mg/l is the standard value for the permissible limits for construction of sulphates in water. |
|
| 9. |
What is the permissible limits for construction of inorganic matter in water?(a) 200mg/l(b) 2000mg/l(c) 3000mg/l(d) 500mg/lI got this question in semester exam.Enquiry is from Quality of Water topic in section Water of Concrete Technology |
|
Answer» The CORRECT option is (c) 3000mg/l |
|
| 10. |
With regard to the curing water, identify the incorrect statement.(a) Curing water shouldn’t produce objectionable stains on the surface(b) The presence of tannic acid and iron compounds is objectionable(c) Iron and organic matter are responsible for staining(d) Water is suitable for mixing is also suitable for curingThe question was posed to me in an interview for internship.My enquiry is from Quality of Water topic in chapter Water of Concrete Technology |
|
Answer» Right choice is (C) Iron and organic MATTER are RESPONSIBLE for staining |
|
| 11. |
What is the maximum limit (ppm) for SO3 in water?(a) 500(b) 1000(c) 2000(d) 1500The question was posed to me in examination.The query is from Use of Sea Water for Mixing of Concrete topic in section Water of Concrete Technology |
|
Answer» The correct choice is (b) 1000 |
|
| 12. |
The vegetable oil if present in mixing for concrete __________(a) Improves strength(b) Reduces strength(c) Gives more slump(d) Gives a smooth surfaceThe question was asked in class test.This intriguing question comes from Quality of Water topic in division Water of Concrete Technology |
|
Answer» The CORRECT OPTION is (b) REDUCES strength |
|
| 13. |
Which of the following statement is incorrect for mixing water?(a) Suspended particles of clay and slit < .02%(b) The quality of CaCl2 is restricted to 1.5%(c) The pH value of water should be between 6-8(d) Free vegetable oil is beneficialThis question was addressed to me in a national level competition.Question is taken from Quality of Water in section Water of Concrete Technology |
|
Answer» RIGHT option is (d) Free vegetable oil is beneficial To explain: Free vegetable oil is HARMFUL but MINERAL oil up to 2% is beneficial to CONCRETE for making HEALTHY structure. |
|
| 14. |
There is necessary to minimize the use of salt water in RCC.(a) True(b) FalseThe question was asked during an interview.My question is taken from Use of Sea Water for Mixing of Concrete topic in chapter Water of Concrete Technology |
|
Answer» RIGHT answer is (a) True The best I can EXPLAIN: SALTY water causes RUSTING problems in the steel provided in RCC work for the structures. |
|
| 15. |
What is the permissible limits for construction of organic matter in water?(a) 200mg/l(b) 2000mg/l(c) 3000mg/l(d) 500mg/lThis question was addressed to me in homework.This intriguing question comes from Quality of Water topic in chapter Water of Concrete Technology |
|
Answer» The CORRECT ANSWER is (a) 200mg/l |
|
| 16. |
What is the maximum limit (ppm) for Alkali Carbonates and Bicarbonates in the water?(a) 500(b) 1000(c) 2000(d) 1500I got this question in an online interview.The question is from Use of Sea Water for Mixing of Concrete in section Water of Concrete Technology |
|
Answer» Right choice is (b) 1000 |
|
| 17. |
To neutralize 200 ml sample of water should not require more than _________ ml of 0.1 normal NaOH.(a) 1(b) 2(c) 3(d) 4The question was posed to me in an international level competition.Enquiry is from Quality of Water topic in portion Water of Concrete Technology |
| Answer» | |
| 18. |
What is the maximum limit (ppm) for turbidity in water?(a) 500(b) 1000(c) 2000(d) 1500This question was posed to me in an online quiz.Enquiry is from Use of Sea Water for Mixing of Concrete topic in chapter Water of Concrete Technology |
|
Answer» Right answer is (d) 1500 |
|