18 March 2019

Thumb Rules for Quantities

  1. Cost of Masonry Compound  Load Bearing wall in Residential Building 1.5 mt height  - Rs.3000 per Rft
  2. Cost of Masonry Compound  Load Bearing wall with footings and plinth beams in Residential Building 1.5 mt height - Rs 4500 per Rft
  3. Cost of 1.5 mt height Masonry Compound wall footings and plinth Beam and columns upto top - Rs.6600 per Rft.
  4. Cost of 1.5 mt height 50mm thick Precast Compound wall will cost upto top - Rs.610 per Rft.
  5. Steel consumption for residential building shall not be more than 3.5 kgs / sft.
  6. Steel in columns will be around 100-150 kgs/cum varies depending on No of Floors.
  7. Steel in beams will be around 100-110 kgs/cum varies depending on span.
  8. Steel for slab will be around 80-100 kgs/cum.
  9. Steel for footings and pedestals will be around 60-80 kgs/cum. 
  10. An Auditorium like Multiplex will cost Rs.2,10,000 per seat or Rs.3525/- per sft of construction area for two parking floors, lobby floor and 3 Audi's in April 2019.
  11. cost of theater has cost Rs. 2 lakhs / seat excluding the audi floor at warangal.
  12. Cost of Transformer per KVA = Rs.1200
  13. Cost of DG Sets per KVA = Rs. 7500
  14. Cost of fuel consumption / hr / kw = 0.2 lits ~ 0.6 lits
  15. Double Shutter frameless Glass Doors : Rs.15,000 per Sqm 
  16. Lead Metal Doors : Rs.21000 per Sqm
  17. Fire Rated Double leaf Metal Door : Rs.11000 per Sqm
  18. General Double leaf  Metal Door : Rs. 10000 per Sqm
  19. General Single leaf Metal Door : Rs 9000 per Sqm
  20. General Flush Doors : Rs. 4500 per Sqm
  21. STP civil cost with block Masonry would cost Rs 10,800 per KL
  22. UG Septic Tank in RCC would cost Rs. 14600 per KL
  23. OHT in RCC would cost Rs. 13600 per KL
  24. M.S. Black Pipes P/E As per IS:1239 costs Rs.5.52 per Rmt per mm of dia for light, medium 1.15 times light, and Heavy 1.34 times light material [used for fire fighting lines]
  25. GI PIPES S/E As per IS:1239 (I) costs Rs.6.88 per Rmt per mm of dia for Light, Medium 1.16 times light, and Heavy 1.35 times light material. [used for plumbing lines]
  26. Elevator's would cost Rs. 14000 per passenger per stop / going including taxes.
  27. Post Tensioning System  would be costing Rs. 450 per Sqm
  28. Roofing PPGI Sheet costs about Rs.6.5 to Rs.8.0 per mm/sft
  29. Aridate adhesive costs about Rs.2.10 per gram
  30. Cement Bison Board Rs. 3.17 per mm per sft    [updated on 30.07.2020]
  31. Road Paint Marking : Rs. 550/- per SQM [updated on 03-05-22]
  32. FRP Tanks will cost Rs. 22/- per liter[updated on 04-06-22]
  33. STP system will cost Rs. 4,250/- per KLD[updated on 04-06-22]
  34. WTP system will cost Rs. 50/-per LPH[updated on 04-06-22]
  35. RO system will cost Rs.350/-per LPH[updated on 04-06-22]

Note: Kindly correct by commenting if anything is abnormal.

Some of the Interview questions


Question Answer
1 what M stands for in M20 Mix
2 Mix Proportions of M5 1:5:10
3 Mix Proportions of M7.5 1:4:8
4 Mix Proportions of M10 1:3:6
5 Mix Proportions of M15 1:2:4
6 Mix Proportions of M20 1:1.5:3
7 Mix Proportions of M25 1:1:2
8 what is SBC means safe beaing capacity
9 What is RRM stands for  Random Rubble Masonry
10 What is CRS Stands for Course Rubble Masonry
11 what is the other Name of Plain Cement Concrete based on purpose leveling course
12 DPC stands for  Damp Proof Course
13 what BBS stands for Bar Bending Schedule
14 why Damp Proof Course used for to avoid capillary action of water
15 What is cover for RCC Footings 50mm
16 what is cover for RCC Columns 40mm
17 what is cover for RCC beams 25mm
18 what is cover for RCC Roof beams and slab 20mm
19 How many clay bricks need to build 1 cum wall 525 nos
20 what is density of cement 1440 kgs/cum
21 how many bags of cement counts to 1 cum 28.8 bags
22 what is density of steel 7835 kgs/cum
23 what is weight of 8mm bar 0.395 kgs/rmt
24 what is weight of 10mm bar 0.617 kgs/rmt
25 what is weight of 12mm bar 0.889 kgs/rmt
26 what is weight of 16mm bar 1.58 kgs/rmt
27 what is weight of 20mm bar 2.469 kgs/rmt
28 what is weight of 25mm bar 3.858 kgs/rmt
29 what is weight of 32mm bar 6.321 kgs/rmt
30 what is standard lap length 50 d [where d is dia of bar]
31 minium dia of reinforcement steel for columns 12mm
32 hook value 10 times Dia
33 how do you do cutting length of strriups ?
34 is lap length depends on strength of concrete and rebars Yes
35 what is the size of ply board 4'x8' or 1200x2400 sqmm
36 what is the size of shuttering plate 2'x3' or 600x900 sqmm
37 what maximum load a acrospan can take when opened fully 3 MT
38 what is the gap to be maintained between brick layers 12mm
39 what are two types of water proofings avaliable membraine and crystaline
40 what chemicals do we use in pressure grouting  Rendrock plug & GP2 grout
41 what is initial setting time of cement 30 mins
42 what is final setting time of cement 10 hrs
43 OPC stands for in cement Ordinary Portland Cement
44 PPC stands for in cement Pozolona Portland cement
45 AAC Stands for  Aeriated Concrete Blocks
46 VDF stands for Vaacume dewatering flooring
47 what should be minium width of wall between door and adjacent windows when they are near each other 18" or 450mm
48 What is normal raiser height in steps 6 - 6.5"
49 what is normal width of thread in stairs 11 -12"
50 what shall be slump for RMC with pump for high rise more than 110
     
1 approximate cost of cement bags 300 per bag
2 what is the labour cost of masion 600 per day
3 what is the labour cost of male helper 450 per day
4 what is the labour cost of female helper 400 per day
5 what should be the % of steel cosidered over and above estimated value towards wastages 2.50%
6 binding wire consumption per MT of reinforcement steel 10 kgs [9-13]kgs
7 What is RFI stands for Request for Information
8 what is DLR stands for Daily labour Report
9 What is GRN stands for Goods Receipt Note
10 What is DPR stands for Daily Progress Report
11 Fire doors are normally fabricated what material Sheet Metal with puff fill
12 Can we do Fire doors done with Wood Yes with treatment
13 where is bottle trap located under the wash basin
14 where is nahani trap located on the toilet/wash rm floor
15 where is gully trap located on the ground level where vertical drops
16 CPVC pipes are used in plumbing lines
17 SWR pipes are used in Sanitary lines
18 What pumps shall be used to avoid Over Head Tank Hydronumatic pumps
19 more power efficent pumps in this [monoblock / submersable] submersible
20 What is difference between STP and Septic Tank In STP we treat to re-use water for flushing or gardening; whereas we don’t treat in Septic tank
21 whate is difference between STP and WTP in STP we treat swer and in WTP we treat bore water for portable use.
22 plumbing final fixtures are also called based on material use chromium plated fittings/fixtures
23    
24 What is the dia of electrical conduit used in RCC Slabs 25mm
25 What is the thickness of electrical conduit used in RCC Slabs min 2 mm
26 What is the dia of electrical conduit used in walls 20mm
27 What is the thickness of electrical conduit used in walls min 1.5 mm
28 where are deep pvc boxes used in rcc slabs
29 how many components do the modular switches have [metal box, base plate, switches, surface place] - 4 components
30 where do we use level control switch for pumping of water
31 where do we use motion sensor switches for toilets / bed rooms
32 where do we use photovolitc sensor switches for common areas
33 can we keep single earthing for all utilites No
34 what material is used to fill vitrified tiles joints Epoxy
35 zero level means no slope / negligable slope
36 How  many times as an engineer we check line and level ?
37 What is the effect daily site review meeting at End Of Day ?
38 how do you ensure the window size ?
39 which room do we have false flooring server room
40 what are grades of SS Railings SS304;SS315
41 what are types of SS / MS Railings Modular / Site fabricated

12 March 2019

links to construction materials manufactures in INDIA

PLUMBING AND SANITARY LINES

http://www.sudhakarind.com
https://www.supreme.co.in
https://princepipes.com
http://amitex.in/intro.html
http://www.sintexplastics.com/products/


ELECTRICAL MATERIALS


anchor-world.com
maruelectricals.com
legrand
schneider-electric
https://www.havells.com/
https://polycab.com/
www.finecabcables.com/
https://finolex.com/
https://www.lighting.philips.co.in/consumer
https://www.orientelectric.com/lighting
https://syska.co.in/led
https://www.bestofelectricals.com/
https://www.moglix.com/

FLOORING MATERIALS