With reference to solar water pumps, consider the following statements:
- Solar power can be used for running surface pumps and not for submersible pumps.
- Solar power can be used for running centrifugal pumps and not the ones with piston.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Explanation
Statement 1 is incorrect
- Solar power can be effectively used to run both surface pumps and submersible pumps. Surface pumps are used when water is close to the surface, such as in rivers or shallow wells. Submersible pumps, on the other hand, are designed to operate underwater, typically used in deeper wells.
- Solar-powered submersible pumps are widely used in agriculture and rural areas to access groundwater from deep sources. The solar panels provide the necessary electricity to power the pump, regardless of whether it is a surface or submersible type.
Statement 2 is incorrect
- Solar power can run both centrifugal and piston pumps. The choice between a centrifugal pump (which moves water by converting rotational kinetic energy) and a piston pump (which uses the back-and-forth motion of a piston to push water) depends on the specific water needs, such as volume and pressure
- Solar water pumps can be designed to accommodate different types of pumps, including those with pistons, depending on the user’s requirements. The source of power (solar energy) does not limit the type of pump that can be used.
