Irrigation & Water Supply is one of 9 topics in the Grade 10 Agricultural Technology CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. What energy source does a windmill pump use to lift water?
Wind (kinetic energy captured by a multi-bladed fan)
Electricity supplied from the national grid
Diesel fuel burned in an internal combustion engine
Solar energy captured by photovoltaic panels
Answer: Wind (kinetic energy captured by a multi-bladed fan) — A windmill pump works by capturing the kinetic energy of wind using a multi-bladed fan (the "wheel") mounted at the top of a tall steel tower.
Easy
2. What is the main function of a water tower?
To store water at height, using gravity to provide water pressure to supply points below
To pump water directly from a borehole using wind power
To filter sediment and debris out of farm water supply
To generate electricity for farm irrigation pumps
Answer: To store water at height, using gravity to provide water pressure to supply points below — A water tower stores water at height, and gravity then provides the water pressure needed to supply troughs, irrigation systems, or farm buildings below.
Medium
3. Name the pump drive unit, typically powered by a small petrol or diesel engine, mounted at the top of a borehole to pump water on demand.
Answer: a power head — A power head is a pump drive unit, typically powered by a small petrol or diesel engine (or sometimes an electric motor), mounted at the top of a borehole to pump water on demand.
