5. Hydro & Bioenergy

Small Hydro — Quiz

Test your understanding of small hydro with 5 practice questions.

Practice Questions

Question 1

Which of the following factors is most critical in determining the economic viability of a community-scale micro-hydro project, especially in remote areas with limited infrastructure?

Question 2

A low-head hydro system is being designed for a river with a relatively consistent flow. To maximize power output, which of the following design considerations is most crucial for optimizing the 'design flow' given the low head?

Question 3

Consider a micro-hydro system with a gross head of $H_g = 12 \text{ meters}$ and a flow rate of $Q = 0.15 \text{ m}^3/s$. If the total head losses due to friction and turbulence are estimated to be $2 \text{ meters}$, and the combined efficiency of the turbine and generator is $70\%$, what is the actual power output of the system? (Use gravitational acceleration $g = 9.81 \text{ m/s}^2$ and water density $\rho = 1000 \text{ kg/m}^3$).

Question 4

Which of the following operational challenges is most likely to significantly impact the long-term energy production and maintenance costs of a 'run-of-river' small hydro system in a region prone to seasonal debris accumulation?

Question 5

When evaluating potential sites for community-scale small hydro, what is the most significant socio-cultural factor that can determine the success or failure of a project, beyond technical feasibility and economic returns?