Punjab PSEB Matric NSQF Plumbing (Assistant Plumber) case studies
Punjab PSEB Matric NSQF Plumbing (Assistant Plumber) · Put your knowledge to work in context.
The PSEB Matric NSQF Plumbing (Assistant Plumber) credential is a Punjab School Education Board vocational qualification at Class 10 level, combining a general matriculation with an NSQF trade component in plumbing. It suits students who want a school-leaving certificate that also records practical trade competence, and early-career helpers or apprentices who intend to work under a licensed plumber on domestic installations, repairs and maintenance. The Punjab PSEB Matric NSQF Plumbing (Assistant Plumber) case studies are 5 cases and about 4,255 words.
1The damp patch that came back: diagnosing a concealed GI branch
A 16-year-old two-storey house in Ludhiana has a 300 mm × 400 mm damp patch on the corridor side of the first-floor bathroom wall, with paint blistering and a green-white salt crust running along a horizontal line. The 15 mm GI branch feeding the WC cistern tees off a 25 mm GI riser buried in that wall; the overhead tank bottom is about 7 m above first-floor level, so working pressure at the branch is roughly 0.7 bar.
953 words, about 5 min2The first-floor tap that only trickles: head, loss or blockage?
A newly built two-storey house has a 1000 L PVC tank on the roof slab, with the water level 5.0 m above ground-floor level. The first-floor bathroom basin outlet is 3.6 m above ground-floor level.
842 words, about 4 min3Gurgling WC and a flat drain run: what must be re-laid?
A three-storey house has a ground-floor WC connected by 100 mm SWR pipe on a 15 m horizontal run to the first inspection chamber, then to the public sewer. The measured gradient is 1:150.
823 words, about 4 min4Quotation under pressure: the ₹21,000 bathroom and the ₹18,000 demand
A plumber has surveyed a bathroom in a two-storey house and prepared these quantities and rates: 25 mm CPVC pipe 22 m at ₹160/m; fittings ₹2,200; two brass bib cocks and one angle valve ₹1,800; a 1000 L triple-layer tank ₹6,500; labour ₹4,500 (three days, one plumber plus helper); wastage 5% on material; GST at 18% on material plus labour. The owner's real budget is ₹21,000, but his brother-in-law has told him the job should cost ₹18,000, that wastage should not be charged, that GST can be 'adjusted' if no proper bill is issued, and that a cheaper local-brand pipe will do.
780 words, about 4 min5The blocked chamber at the school: the five-minute entry that must not happen
A school in a small town has a blocked 450 mm wide inspection chamber, about 1.6 m deep, in the courtyard. It receives kitchen waste, there is 400 mm of standing dark water and a strong rotten-egg smell.
857 words, about 4 min