[Top 20] L&T Interview questions for FRESHERS :-

Civil Engg Interview Question

1.What is the slpoe of stair case ?

ans-As per IS 456-2000,[25-40](degree).

2. Full form of 1(one) BHK ?

ans- 1 Bed room , 1 Hall , 1 Kitchen room.

3. Volume of cement Bag (50 kg) ?

ans- 0.347 meter.q OR 1.23 CFT.

4. Expair Date of cement ?

ans- 3 months.

5. Size of hook of angle ?

ans- Hook = 10D

      Angle = 135 (degree)=3d

                     90(degree)=2d

                     45(degree)=1d

6. Calculation weight of steel bar formula ?

ans- d Squre * L/162.2(where d=in mm ,L=Meter)

7. Why is foundation provided. what are types of foundation ?

ans-Foundation is provoded  to distribute the load of structure in the soil.

2 types 0f foundation --shallow & deep foudation.

8-Minimum grade of concrete use in RCC ?

ans- M20.

9- Shuttering Removing time (deshuttering) ?

ans- side of wall , column & other side of beam =24 to 48 hour

      -beam sofit = 7 days

      -slab = 3 days

      removal of props of slab 

       -span > 6m = 21 days

       -span <=6m=14 days

10 - What are the concrete tests happening on site ?

ans- slump test , compressive strength test ,water pumicability test , water absorption test.

11- What is the unit weight of steel ?

ans- the unit weight of steel is 78.5kg/meter .q

12. Unit weight of concrete ?

ans- RCC =25 KG/meter.q

       -PCC  =24 kg / meter.q

13- Compressive strength of bricks ?

ans- 1st class brick =105 kg/cmsqre

      -2nd class brick =70 kg/ cmsqre

      -3rd class brick =125 kg/cmsqre

14- Initial setting time of cement ? = 30 min

    - Final setting time of cementb ? = 90 min

15 -Curing method  ?

ans- spraying ,ponding , wet covering of surface , curingb chemicals , steam curing , sprinkling.

16- What is bleeding on concrete ?

ans- Bleeding is form of segrigation , in which water comes out to the surface of concrete.

17- why we do pile foundation ?

ans - Pile foundation is adopted when the soil bearing capacity is less than 24 kn/meter q.

18- Standard height of each floor ?

ans- 3meter.

19-what is guniting ? 

ans- It isb the process in which mixture of cement , sand propotion of 1:3 is shooted in concrete surface with the help of crum  pressere of 2 to 3 kg/cm sq.

20- what is the least count of thedolite & compass ?

ans- Thedolite =20 sec.

      - Compass = 30 min.

           THESE ARE THE MOST ASKED QUESTION IN L&T INTERVIEW