The winning prize was modest money and a promise of local backing, but the real reward arrived in the way the junction box of a nearby community center was retrofitted with their pump. The elders, at first skeptical, watched as water rose into tanks where before buckets had been the rule. For them it was not the novelty of engineering but the way the machine changed mornings: children who walked less for water, crops that stayed green longer, an old woman setting out tea without the worry of a dry season.
Some versions integrate inspection techniques: manufacturing technology volume 2 - P.N Rao
The book is packed with line diagrams and technical illustrations. In manufacturing, a 2D cross-section of a tool angle is worth a thousand words. A Comprehensive Guide to Manufacturing Technology Volume 2