Answer / akashkhutia

It is a measure of the void spaces in a material, and is a
fraction of the volume of voids over the total volume.

Answer / bala

* Porosity is used to indicate the degeree by which the
volume of a material is occupied by pores.
* The ratio of volume of voids to the total volume of the
specimen.

Answer / gurusharan

It is voids present in the material.

internal dia of sewer pipe should not be less than A] 15 cm B ] 20 cm C ] 25 cm

2 Answers  

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how many material required for brickbat water proofing of toilets.

0 Answers   DLF, Harpic,

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what do you mean by 'redistribution' of forces?

1 Answers   Rites,

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How do you convert wind speed into force?

0 Answers  

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1) what do you mean by rolling margin of steel ? 2)pls. tell the cut length formula of stirrups as per IS codes(take out cut length for a beam of 600*300mm with 40mm cover all sides)? 3)what is the multiplying factor of painting for sand faced plaster? 4)if your footing is of size1.9*1.6m . what quantity of length and width you will excavate means what extra margins you will allow as per IS codes in billing?

1 Answers  

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Why curing is necessary for concrete

6 Answers  

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How many types of stirrups are there? How to calculate their cut lengths?

2 Answers   BARC,

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why steel is used in r.c.c why steel is used in r.c.c

5 Answers  

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Cement proportion in Fly ash bricks and type of cement to be used ?

2 Answers  

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important question on stones

0 Answers  

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What is allowable limit of silt in river sand for concrete

3 Answers   UIPL,

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08. 4 main points about check list for Shuttering works are––– 4 i) ii) iii) iv) 09. 4 main points about check list for Concreting works are––– 4 i) ii) iii) iv) 10. 4 main points about check list for Plaster works are––– 4 i) ii) iii) iv) 11. 4 main points about check list for Brick works are–– – 4 i) ii) iii) iv) 12. 3 main points about Project delaying factors are––– 3 i) ii) iii) 13. Write down 60-grade M.S. deformed bar specification. 3 14. 3000 psi concrete means: 1 15. 4 main points about methods of wastage control are–– – 4 i) ii) iii) iv) 16. 1 main point about reasons for your honesty is : 1 17. Water cement mixing in hopper less mixture machine is better than hopper mixture machine because: 1 18. 2 main points about your role during roof casting are–––– 2 i) ii) 19. a. The weight of 3333m deform bar of 24.5 mm dia is…… 1 b. The weight of 300 rft plain bar of dia 1 is……. 1 20. The types of slumps are––– 3 i) ii) iii) 21. 4 main points about the causes of cylinder failure are––– 2 i) ii) iii) iv) 22. Detection of a beam & a girder are–––– 2 i) ii) 23. Curing is needed for–––– 1 24. The types of slabs in respect of size & shape are––– 5 In respect of size: i) ii) In respect of Shape i) ii) iii) 25. The types of Column in respect of size & shape are–– – 9 In respect of size: i) ii) In respect of Shape: i) ii) iii) iv) v) vi) vii) 26. 3 field tests & 3 Laboratory tests of bricks are––– 6 Field tests: i) ii) iii) Lab test: i) ii) iii) 27. 2 field tests & 1 Laboratory tests of sand are––– 3 Field tests: i) ii) Lab test: i) 28. 1 field tests & 1 Laboratory tests of M.S rod are––– 2 Field tests: i) Lab test: i) 29. a. The % of water absorbs by brick chips: …………… 1 b. The % of water absorbs by Stone chips: …………… 1 30. In respect of design: 5 a. The % of strength gains by concrete in 28 days= b. The % of strength gains by concrete in 14 days= c. The % of strength gains by concrete in 07 days= d. The % of strength gains by concrete in 03 days= e. The % of strength gains by concrete in 28 days without curing =

3 Answers  

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