With reference to solar water pumps, consider the following statements :
1. Solar power can be used for running surface pumps and not for submersible pumps.
2. Solar power can be used for running centrifugal pumps and not the ones with piston.
Which of the statements given above is/are correct?
A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Correct Answer: Option D
Explanation
1. Statement 1 is incorrect. Solar power can be effectively used to run both surface pumps (located above the water source) and submersible pumps (designed to be placed underwater, typically in borewells). The choice depends on the water source depth and application requirements. Solar panels generate electricity, which can power the motors of either type of pump.
2. Statement 2 is incorrect. Solar power can be used to run various types of pumps, including both centrifugal pumps (which use rotational energy to move water) and positive displacement pumps like those with pistons (which use reciprocating motion). The type of pump used depends on factors like required pressure head and flow rate, and solar energy can power the motors for either type.
3. Therefore, neither statement 1 nor 2 is correct.