RBSE Sec Voc Plumbing case studies
RBSE Sec Voc Plumbing · Put your knowledge to work in context.
The RBSE Secondary Vocational Plumbing credential is the Class 12 vocational trade qualification awarded through the Rajasthan Board of Secondary Education (RBSE) for students in the plumbing trade stream. It signals that a learner has completed a two-year vocational programme combining general education with trade-specific instruction in domestic and light commercial plumbing. The RBSE Sec Voc Plumbing case studies are 5 cases and about 4,824 words.
1First-floor shower trickle in a 14-year-old GI riser: pressure problem or restriction?
A two-storey house in Jaipur is supplied from a 1,000-litre HDPE overhead tank whose outlet sits 7.5 m above the first-floor shower rose. The service drops from the tank in 20 mm GI (medium class) and reduces to 15 mm GI at the first-floor branch; the riser is 9 m long with five elbows and was installed 14 years ago.
853 words, about 4 min2Gurgling ground-floor WC and lost trap seals in an unvented three-storey stack
A three-storey hostel block has eight WCs and eight wash basins. Each WC connects to a 110 mm PVC soil stack through a 100 mm branch laid at 1:80 with a 75 mm P-trap; the basins discharge into a separate 75 mm waste stack.
949 words, about 5 min3Twelve-hour-old copper joints leaking after quenching
A plumber is making up twelve 22 mm copper joints for a geyser installation supplied at 2 bar (municipal main plus a 0.5 HP pump). He cuts the tube with a hacksaw, wipes the burr away with emery cloth, dips a brush into a tin of zinc-chloride flux, heats the fitting with a butane torch until the copper glows a dull red, feeds 50/50 tin-lead solder at the cup edge, and quenches each finished joint in a bucket of water so he can handle it and move on.
1,009 words, about 5 min4Self-priming pump that primes slowly, loses flow and short-cycles
A bungalow lifts water from an underground sump to a 1,000-litre HDPE tank on the roof with a 0.5 HP self-priming monoblock pump. The suction line is 25 mm GI: 5.5 m vertical from the lowest sump water level to the pump axis, plus a 4 m horizontal run, with a foot valve and three elbows.
996 words, about 5 min5Replacing an outlet baffle in a school septic tank: entry or no entry?
A school's septic tank, 2.6 m deep and 1.2 m in diameter, needs its damaged outlet baffle replaced. A tanker emptied it two days ago, but about 250 mm of sludge still lies on the floor, and the tank has a single 600 mm manhole and no other opening.
1,017 words, about 5 min