Question

write 5 lines on a hand pump.​

Answer 1

Answer:

Hand pumps are manually operated pumps; they use human power and mechanical advantage to move fluids or air from one place to another. They are widely used in every country in the world for a variety of industrial, marine, irrigation and leisure activities. There are many different types of hand pump available, mainly operating on a piston, diaphragm or rotary vane principle with a check valve on the entry and exit ports to the chamber operating in opposing directions. Most hand pumps are either piston pumps or plunger pumps, and are positive displacement.

Explanation:

Answer 2

handpumps have been a very useful and popular tool for transporting water to the surface. They offered considerable performance for their simple design and low capital costs, especially in developing countries. Hand pumps are getting used worldwide but mainly in Africa, India, Asia and South America



Hope helps mark as brainliest