Civil engineering interview questions of DBL ,L&T etc..

Unit weight of concrete - RCC- 2500kg/cum & PCC - 2400kg/cum
Steps involved in concrete process :-

Batching
Mixing
Transporting
Placing
Compacting

Trapezodial footing volume formula:-

(L*B*H)+{h/3*(A1+A2+√A1A2)}

Standard list count of theodolite is 20'
In plastering first coat is known as under coat

What is the meaning of M50 ?

M= mix

50= characteristic compressive strength of cube size is 150 mm *150 mm * 150 mm after 28 days of curing.

Unit is N/sqmm

Instrument used for specific gravity is HYDROMETER

Size of mould to check compressive strength of cement is 70.6mm* 70.6mm*70.6mm

Main bar always a price of direction
Distribution bar always apply longer direction

Weight of concrete cube (150mm*150mm*150mm) = 8.1 kg

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Civil engineering Interview questions at L&T

Hacking on column :- 50 nos in 1sqfeet or 500 nos in 1sqmeter Cover blocks center to center distance :- 600 mm to 1 meter Beam shall not have width less than 200mm For 750mm depth beam provide :- Side Face Reinforcement & also called STIFFNOR Width to depth ratio of beam should be more then 0.3 Yoke interval in column should be 600 m / 2feet Diameter of needle for compaction in column = 40mm Why steel always circular ? Because circular patterns stress distribution equally. What slope you will provide if you are constructing staircase according IS 456 ? Answer :- 25° to 40° What's the least count of theodolite of compass ? Theodolite least count is 20 second Compass least count is 30 minute

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