15 very important interview question answer

                INTERVIEW 15 IMPORTANT QUESTION ANSWER

Q1 ;- what is weight of first class brick ?
Ans;- 3.500kg

Q2;-How many days we can use cement from the production date ?
Ans ;- 3 months from production date

Q3;-What is least cover provide for different RCC member ?
Ans ;-
Footing                         50mm
Raft foundation            50/70mm
beam strips                   50 mm
Grade slab                    20mm
Column                          40mm
Shear wall                      25mm
Slab                                15mm
beam                              25mm

Q4;-what is the difference betwwen one way slab or two way slab ?
Ans One Way Slab ;-       
                       ratio of longer span /shorter span .>.2
      Two Way Slab;-
                       ratio of longer span/shorter span <.2

Q5;-What are the type of foundation used in construction
Ans;-
Deep Foundation
Shallow  Foundation

Q6;-What are the common methed of curing ?
Ans;-
Spraying
Wet covering of surface
Application of curing chemical
Steam curing

Q7;-Types of footing used in building construction ?
Ans;-
wall footing '
simple spread footing
stepped or pedestal footing
 sloped footing
combined footing
strap footing
mat or raft foundation
pile foundation
drilled pier

Q8;-How to calculate steel weight ?
Ans ;-
in meter Dia x Dia / 162
in feet Dia x Dia / 533

Q9;-How many bricks are required in 1 meter cube ?
Ans;- 500 bricks are required in one meter cube

Q10;- What is DPC
Ans;- DPC is Damp Proof Course

Q11;-What do you under stand by m25 concrete
Ans ;-M  stands for mix
     and 25 is compressive strength N/MM2
     ratio is  1 CEMENT, 1 SAND , 2 AGGRIGATE

Q12;- What is density of 1 cum cement ?
 Ans ;-1440 kg /m3

Q13;- What are the weight of 8 mm,16 mm,12 mm,20 mm,25 mm dia of steel bar ?
Ans ;-
 size in mm                        weight in kg per feet                           weight in kg per meter
6                                               0.067                                                     0.220
8                                                0.120                                                     0.395
10                                              0.188                                                     0.617
12                                               0.270                                                    0.885
16                                               0.480                                                    1.578
20                                             0.751                                                      2.466
25                                             1.174                                                      3.852
32                                             1.925                                                      6.313

Q14;- what is a bearing capacity of soil ?
Ans;- Bearing capacity is the capacity of soil to support the loads applied to the ground .the bearing capacity of soil is the maximum average contact pressure between the foundation and the soil which should not produce shear failure in the soil.

Q15;-What is the maximum curing time period
Ans;- The minimum period for curing concrete to attain maximum strength is 28 days .it is clear that concrete attains 50% of its design strength when it cured for 3-7 days .


 

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