WBBSE Madhyamik Vocational Plumbing case studies
WBBSE Madhyamik Vocational Plumbing · Put your knowledge to work in context.
The WBBSE Madhyamik Vocational Plumbing examination is the Class 10 vocational subject assessment offered under the West Bengal Board of Secondary Education's Madhyamik vocational stream. It suits students who want a school-leaving credential that carries a recognised trade skill alongside general education, and who may move into plumbing apprenticeship, helper or assistant work, a family plumbing business, or further vocational training. The WBBSE Madhyamik Vocational Plumbing case studies are 5 cases and about 3,507 words.
1Pinhole Leaks in a 20-Year-Old GI Riser: Patch or Replace?
A two-storey house in a hard-water belt draws water from a 90 m deep borewell. The supply is through 20-year-old 20 mm GI pipes.
774 words, about 4 min2Gurgling WC and Sewer Smell in a Four-Storey Block
A four-storey residential building has one 110 mm PVC soil stack serving the toilets, with 75 mm floor traps and 40 mm wash-basin wastes connected directly to the stack branch. There is no vent pipe; the stack terminates 300 mm above the roof slab, close to a bedroom window.
676 words, about 3 min3Thin Stream on the First Floor and a Pump That Cycles at Night
A three-storey house has a 1,000 L overhead tank on the roof; the tank outlet is 12 m above ground level. A 25 mm service pipe runs down the rear wall and 15 mm branches feed the taps.
683 words, about 3 min4Damp Patch, a Moving Meter and a Wall Full of Electrical Conduit
Six months after a ground-floor kitchen extension, a damp patch appears on the bedroom wall at skirting level, 120 mm above the floor, on the opposite side of the wall from a concealed 15 mm CPVC line feeding the kitchen sink. The line runs 5 m inside the wall at 300 mm depth and was pressure-tested at 10 bar for one hour before plastering.
680 words, about 3 min5A School Toilet Quotation That Is 'Too High' - But Is It?
A plumber submits a lump-sum quotation of ₹87,500, inclusive of 18% GST, for a school toilet block with 6 WCs, 4 urinals and 6 wash basins. The attached schedule lists 25 mm GI inlet pipe 40 m at ₹180/m, 110 mm PVC drain 35 m at ₹220/m, 15 mm CPVC branches 60 m at ₹95/m, WC ₹3,200 each, urinal ₹1,800 each, wash basin ₹1,500 each, and fittings ₹6,000.
694 words, about 3 min