Interview Questions Answers in Civil Engineering

Questions / { sahil shah }

Questions Answers Category Views Company eMail

What is Current Shuttering rate (labour + materials) for Columns, Beam & Slab on Item rate basis ?

Atul, AVR, Pioneer,

3 Civil Engineering 41041

For 1 cu m of concrete required 1.54 Cu m times dry volume. Pl give clarification of 1.54 factor

RASA, Unity Infraprojects,

1 Civil Engineering 3190

Answers / { sahil shah }

Question { Simplex, 47704 }

How we calculate the actual diameter of the TMT Steel

Answer

Calculate actual diameter of steel with vernier caliper. steel density 7850 kg per cu m is theoretical weight but on site it's different base on steel cast variation applicable.

Is This Answer Correct ?

5 Yes

1 No

Question { Orbit Corporation, 20509 }

Which is default or standard size of tiles used in dado
bathroom

Answer

Now a day Dado use with various combination

Tile use for Toilet in most of recent new construction : 600 X 600 mm joint free with highlighter

Is This Answer Correct ?

0 Yes

0 No

Question { APPSC, 19115 }

What kind of foundations used in block cotton soils

Answer

Generally Black Cotton Soil have bearing capacity = 12.5 T/Sq m

Hence we have to transfer load

With Pile foundation we create friction hence transfer load partially by friction & end bearing.

Is This Answer Correct ?

1 Yes

0 No

Question { L&T, 12258 }

9*8m slab 1:2:4 ratio use for M20 mix how much cent is
require it will become in cum but i want bags.

Answer

Question was wrong M 20 have nominal mix proportion (1:1.5:3) not mix proportion (1:2:4)

For Mix M 20
Qty of Slab 7.2 Cu m after consider slab thickness 0.1 m

Cement : 57 Bag

Is This Answer Correct ?

2 Yes

0 No

Question { 4913 }

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?

Answer

a) Rolling margin is percentage difference between actual weight vs standard weight of steel have same length. - generally vary 2-3%

b)Cut length of stirrups L = 2 X (600-80+300-80) + 15 X 8 = 1600 mm

Is This Answer Correct ?

2 Yes

0 No

Question { TATA, 11230 }

what is water cement ratio and how to calculate it after
designing the concrete?

Answer

Water cement ratio is fixed at the time of design mix of concrete.

It's Depend on following condition.
a) Environmental
b) Type of structures
c) Method of casting
d) Admixture
e) Material

Is This Answer Correct ?

0 Yes

0 No

Question { 3167 }

1- what is steel rebar cover?
2- what is a rebar stirrup?

Answer

a) Cover provide to all steel reinforcement, including link for protecting r/f from exposure & fire.

Cover provide as per Table no 16 & 16A of IS 456:2000

b) R/f steel use as stirrups for counter SHEAR FORCE in beam & columns

Is This Answer Correct ?

0 Yes

0 No

Question { 10001 }

how much steel is required for 1 sqft of slab

Answer

6 to 7 kg/sq ft for superstructure
4 to 5 kg/sq ft for podium

Is This Answer Correct ?

0 Yes

1 No

Question { L&T, 13838 }

what is right time of slab DE shattering and beam boo tam.

Answer

As per IS 456:2000

a) Columns/vertical member : 16-24 hrs
b) Slab - 3 day - prop to be kept below
c) Beam - 7 day - prop to be kept below

props to slab
a) spanning up to 4.5 m = 7 day
b) spanning over 4.5 m = 14 day

props to beam
a) spanning up to 6 m = 14 days
b) spanning over 6 m = 21 day

Is This Answer Correct ?

3 Yes

0 No

Question { 6168 }

What should be the Slump(Min.)in cement in concrete in all
grades of concrete?

Answer

Minimum slump for any grade of concrete for any section/structure as describe in clause 7 of IS 456:2000

25 to 75 mm

Is This Answer Correct ?

0 Yes

0 No

Question { NCC, 20767 }

how to calculate required shuttering material like
props,spans,plates ..etc for a slab?

Answer

Props 450 mm C/c
Span near beam 1 nos each & mid span spacing will be 600mm c/c
Plate start from beam end

Is This Answer Correct ?

6 Yes

1 No

Question { 6250 }

What is the wastage % of concrete in Conventional
shuttering design & Mivan Shuttering for high rise building.

Answer

In general 2% wastage consider for concrete

Is This Answer Correct ?

0 Yes

1 No

Question { HCL, 8806 }

what is the ideal temparature for concrete?

Answer

As per IS 7861 (part I) - Hot weather concreting - Temp more than 40 degree Celsius.

As per IS 7861 (part II) - Cost weather concrete - Temp below 5 degree Celsius.

Normal Temperature between 5 degree to 40 degree Celsius.

Is This Answer Correct ?

3 Yes

0 No

Question { Cicon Engineers, 8752 }

I s code of steel

Answer

Following IS CODE refer for reinforcement steel.

a) IS 1786 : High strength Deformed steel bars & wires for concrete reinforcement

b) IS 2502 : Code of practice for bending & fixing for concrete reinforcement

Is This Answer Correct ?

0 Yes

0 No

Question { ATS, 9707 }

how calculate cutting length of stell in slab and column? give
brif discussion with formula?

Answer

Column floor to floor ht Say 3.0 m
Development length = Say 36 times diameter of main bar
Total length of One bar = 3+ Ld

Slab cutting length workout as follow
Base on slab supporting condition development length decided.

Is This Answer Correct ?

1 Yes

1 No