Civil Engineering Interview Questions

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As per thumb rule cement required per 1 cum of M20 concrete is 411Kg/cum(1.57/5.5=0.285cum of cement i.e 0.285*1440=411Kg).But as per PWD rate analysis cement required is 347Kg/cum.the difference is 64Kg.This kind of difference is coming every grade of concrete.Can you give perfect suggestion regarding this.

What all are important things keep in mind while designing and executing the water storage tank works?

Design a built-up column carrying an axial load of 1200 KN. Its length is 8m and it is effectively held in position at both ends and restrained against rotation at one end. Assume yield stress of 250 mpa

802) Design a gussetted base for a column section consisting of one sc 250 with two cover plates 300 x 25 mm carrying an axial load of 2500 KN. The S.B.C. of soil is 250 KN/m2 and the permissible bearing pressure on concrete is 4000 KN.

831Design a cantilever slab to carry a live load of 2000 N/m2. The overhang of the slab is 1.20m. b) A slab over a room is 4.75m x 4.75m. The edges of the slab are simply supported and the corners are not held down. The live load an the slab is 300 Kg/m2. The slab has a bearing of 15cm. On the supporting walls. Design the slab as per Rankine - Grashoff theory. Assume weight of R.C.C. = 2400 Kg/m2.

1480A doubly reinforced concrete beam is 25 cm wide and 50cm deep to the centre of tension reinforcement. The centre of compression is steel is 5cm from the compression edge. The areas of the compression and the tension steel are 10.16cm2 and 12.56 cm2 if m=18 and the bending moment at the section is 7,000,000 N-cm. Calculate the stress in concrete and steel.

834Design a reinforced concrete combined footing (rectangular) for two columns located 3.60 metres apart. The overall sizes of the columns are 40cm x 40cm and 69cm x 60cm and the loads on them are 1000 kn and 1500 kn respectively. The space available for the width of the footing is restricted to 180cm. The S.B.C. of the soil is 280 kn/mm2 use M15 concrete.

1424Design a cantilever type retaining wall to retain sand for 4m above the ground. The sand fall slopes at the rate of 1 vertical to 2 horizontal. The weight of sand is 18000 N/m3, the angle of repose being 30. The safe bearing capacity of the soil is 200 kn/m2 at 1/25m below the ground level. Use m 15 concrete mix.

1562Design an underground tank of internal dimensions 6m x 3m x 3m. The soil surrounding the tank always remains dry. The tank shall be provided with a roof slab. The soil weighs 16000 N/m3 having an angle of repose of 30.

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Un-Answered Questions { Civil Engineering }

what is penetration test?why it is done?

A super elevation of 60 cm has been provided on a 8m wide road and a curve of 260m radius .calculate the max.speed in km/hr of the vehicle that can be negotiated safely? Plz answer with full solution.thanx

I have a slab of 20cm thickness of 20m by 4m in wich we are installing 15 tons electric panels , and we have put 4 H-shaped columns under the slab but we have done many cores in the slab which seems very normal , can you help me by telling me how to calculate the bearing capacity of the slab or give me an idea if i should increase more columns Note: load distribution area 12*1.5 m2

according to the painting co efficient, we should take the one side of doors (or) windows or both sides?

how to calculate spacing rod in column

Used Cement & Sand in 1 Square Meter or 1 Square Feet For Brick Work 0.115mm ? (1:4) (1:6)

what are the forces acting on gantry girder

why do we not deduct volume of steel to find actual volume of concrete in practical???

Does VDF add strength to the flooring apart from preventing water ingress?

What is difference between combin footing & rapt footing

how to calibrate the RM 800

Hi my name is Binyam and I'm a 7th grader at Mayfield Woods Middle school. I decided to research civil engineering as my career and i need to know a few thing about your profession. What is your daily routine? What are some advantages and things you like about your job? What are some disadvantages What is the hardest thing you have done? What education have you gone through to become a civil engineer? How long is your work day? What is your work environment like? What is your salary? What made you want to become an engineer? What tools do you you use? Thank you for answering my questions

How to calculate cement, water, fly ash amount for 1 cum if the w/c ratio is 0.4 and fly ash to cement ratio is 1:9

In how many types u can do POP on ceiling and walls(on which material or by using which material)? b) what is the difference between dry , oil bound, enamel, acrlyic type of painting?

Process of pcc in wateredug