Consider the following statements: 1. Run-of-river plants can be located on any river. 2. Runaway speed of a turbine is generally 180% of the normal speed 3. Underground power stations are suited to areas susceptible to landslides. 4. Higher the specific speed, higher will be the discharge and head. Which of these statements are correct?
- A1 and 2
- B2 and 3Correct
- C1 and 4
- D2 and 4
Solution
Concept
Hydropower statements
Step-by-step solution
1. Run-of-river plants need suitable flow and cannot be located on any river (1 false). 2. Runaway speed is about 1.8 times normal for Francis (2 true). 3. Underground stations suit landslide-prone areas (3 true). 4. Higher specific speed means lower head, not higher (4 false).
Explanation
Statements 2 and 3 are correct.
Why the other options are wrong
Options containing 1 or 4 are wrong.
Correct answer: B) 2 and 3