SL30 CIVIL ENGINEERING SHORT TYPE QUESTION ANSWER [CONCRETE TECHNOLOGY]

STUDY LESSON:-30 [CIVIL ENGINEERING]

For Competitive exams/Govt. jobs/Semester exam/Self Study Purpose

1. The range of temperature is maintained during the burning of calcareous and argillaceous material of manufacturing the cement ___________

2. Efflorescence occurs in cement due to ___________

3. The type of sand which requires high water cement ration belongs to ____________

4. If an atmospheric temperature rises what will happen to the setting time of cement

a) Decreases b) Increases b) will stop c) none of these

5. The shape of aggregate which have maximum voids

a) Rounded b) Flaky c) angular d) Elongated

6. In tunnel lining the concrete is transported by ____________

7. The method which is used to have an uniform concrete surface removing humps and hollows are called __________

8. The factors on which the quality of compaction of concrete depends upon ___________

9. Proper curing is required in concrete for ___________

10. The concrete mix proportion for the construction of highly loaded columns should be

a) 1:2:2 b)1:1.5:2 c)1:1:2 d)1:2:3

Answers:-

1. 1500° C to 1600°C

2. excess of alkalies

3. zone I

4. Increases

5. Flaky

6. Pumps

7. Screeding

8. Density, strength and durability of concrete

9. volume stability, strength and wear resistance

10. c)1:1:2

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