WBPSC AE Civil case studies
WBPSC AE Civil · Put your knowledge to work in context.
The WBPSC Assistant Engineer (Civil) recruitment is conducted by the West Bengal Public Service Commission to select civil engineers for state government departments and undertakings. It suits graduate civil engineers, including final-year students preparing ahead, who want a stable public-sector design, execution or maintenance role in West Bengal. The WBPSC AE Civil case studies are 5 cases and about 5,153 words.
1Cracked Keyway on a Rotating Pump Shaft: Static Check Passes, Fatigue Does Not
A 60 kW, 600 rpm motor in a river-pumping station drives a centrifugal pump through a 70 mm diameter solid steel shaft (yield 340 MPa, ultimate 600 MPa). The pulley overhangs the bearing by 180 mm and, after re-tensioning, the belt pull is 9 kN.
934 words, about 5 min2Balcony Cantilever with the Main Steel Laid at the Bottom
On a five-storey apartment project, the 1.2 m cantilever balconies are 110 mm thick, M25 concrete, Fe 415 steel, with a floor finish of 1.5 kN/m² and a service live load of 4.0 kN/m². Site inspection shows the specified 8 mm bars at 250 mm c/c lying on the bottom of the slab: the contractor removed the bar chairs before concreting.
1,031 words, about 5 min3Cavitation in a Sump Pump: The Worst Case is the Minimum Sump Level
A 20 L/s centrifugal pump lifts water from a sump to a tank 28 m above the pump centreline. The pump sits on a platform 5.5 m above the minimum sump level, which occurs at the end of the dry season.
1,062 words, about 5 min4Differential Settlement of a School Block Founded on an Old Pond Fill
A three-storey school building with isolated footings 2.0 m x 2.0 m founded at 1.5 m depth has developed diagonal cracks at the corners of the ground-floor walls, and a differential settlement of 45 mm has been measured between the two ends over 18 m, four years after construction. The borelog shows 0–1.5 m loose fill (N = 4); 1.5–5.5 m soft to medium clay (Cc = 0.35, e0 = 1.10, Cv = 1.2 m²/year, effective overburden at mid-depth = 65 kPa); below 5.5 m dense sand.
993 words, about 5 min5Choked Drainage Gallery in a Gravity Dam: Uplift Turns Compression into Tension
A 30 m high concrete gravity dam has a vertical upstream face, a 4 m crest and a 22 m base; concrete weighs 24 kN/m³ and the foundation rock has a friction coefficient of 0.70. The reservoir is at full supply level.
1,133 words, about 6 min