Irrigation & Water Supply is one of 9 topics in the Grade 11 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. Which pump type is designed to operate fully submerged in the water it is pumping, commonly used in boreholes?
An electrical submersible pump
A jet pump
A centrifugal pump
A rotary pump
Answer: An electrical submersible pump — An electrical submersible pump operates fully submerged in the water it is pumping, commonly lowered into a borehole or deep well.
Easy
2. Which pump type is the most common on farms, using a rapidly spinning impeller to produce a high flow rate at moderate pressure?
A centrifugal pump
A jet pump
A submersible pump
A rotary pump
Answer: A centrifugal pump — A centrifugal pump, the most common pump type on farms, uses a rapidly spinning impeller to fling water outward by centrifugal force, producing a high flow rate at moderate pressure.
Medium
3. Name the surface-mounted pump type that uses a nozzle mechanism to create suction, drawing water up from a well or borehole.
Answer: jet pump — A jet pump is a surface-mounted pump that uses a jet (nozzle) mechanism to create suction, drawing water up through a suction pipe to the pump at the surface.
