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