GCE A/L Engineering Technology case studies
GCE A/L Engineering Technology · Put your knowledge to work in context.
The GCE Advanced Level Engineering Technology examination is a Sri Lankan upper-secondary qualification taken by students who intend to move into engineering, technology, or applied-science study at tertiary level or into technical employment. It is a school-leaving subject in the technology stream, assessed through a combination of multiple-choice, structured, and essay-style papers, and it rewards candidates who can connect drawing conventions, material behaviour, mechanical reasoning, electrical principles, energy concepts, production methods, and measurement practice into one coherent engineering habit of mind. The GCE A/L Engineering Technology case studies are 5 cases and about 3,280 words.
1Galvanized Walkway Brackets at a Coastal Site
A coastal municipal walkway uses 6 mm hot-dip galvanized mild-steel angle brackets to support handrails. The brackets were cold-bent to an inside radius of 8 mm after galvanizing, then fixed with A4 stainless-steel M12 bolts through 14 mm holes.
661 words, about 3 min2Intermittent RCD Tripping on a VFD-Controlled Borehole Pump
A farm borehole pump is rated 7.5 kW, 415 V, three-phase, 14.8 A full load, and is fed by 65 m of 4 mm² four-core copper armoured cable from a distribution board. The pump is controlled by a variable-frequency drive (VFD) with a built-in EMC filter.
673 words, about 3 min3Boiler-House Performance Gap in a Garment Factory
A garment factory operates a 2,000 kg/h saturated-steam boiler at 10 bar gauge. Feedwater enters at 20 °C and condensate return is only 25%; the rest is made up with cold softened water.
751 words, about 4 min4Cracking and Tilting of a Cantilever Retaining Wall
A 4.5 m high reinforced-concrete cantilever retaining wall supports a paved driveway at a hillside school. The wall is 200 mm thick at the top and 350 mm at the base, with a 2.5 m wide heel.
599 words, about 3 min5Orifice-Plate Flow Reading Disagreement in a Water Treatment Plant
A water treatment plant measures filtered water flow with a 200 mm orifice plate and a differential-pressure transmitter. The design maximum flow is 100 L/s at 25 kPa differential pressure.
596 words, about 3 min