QUIZ TOPIC 3

What is the basic principle of hydropower?

• Converting wind energy into mechanical energy

• Converting kinetic energy of flowing water into mechanical energy to drive a turbine

• Harnessing geothermal heat from the earth

• Converting solar radiation into electrical energy

Which Indonesian rivers hold the largest hydropower potential?

• Musi, Brantas, Bengawan Solo

• Kapuas, Mahakam, Mamberamo

• Batanghari, Citarum, Serayu

• Siak, Way Sekampung, Lamandau

What is the main factor that determines the amount of wind energy that can be harnessed?

• Water density

• Sunlight intensity

• Wind speed, air density, and turbine blade swept area

• Ocean current direction

The Sidrap and Jeneponto wind farms are located in which province?

• East Nusa Tenggara

• West Java

• South Sulawesi

• Maluku

Why are ocean current turbines capable of generating more power than wind turbines at lower speeds?

• Because seawater is much denser than air

• Because the blades are larger than wind turbine blades

• Because they operate at higher altitudes

• Because they use solar panels for additional energy

Which straits in Indonesia are known for strong ocean currents with high energy potential?

• Sunda, Lombok, Alas, Ombai, Flores, Maluku waters

• Malacca, Makassar, Karimata, Natuna

• Sunda, Bali, Malacca, Bangka

• Timor, Sumba, Kei, Banda

The average wave power in Indonesian waters is approximately:

• 2–5 kW/m

• 6–8 kW/m

• 10–15 kW/m

• 20–25 kW/m

Which technology is commonly used to harness wave energy in Indonesia’s southern coasts?

• Francis turbine

• Oscillating Water Column (OWC)

• Gas turbine

• Pumped hydro storage

According to RUPTL 2021–2030, how much additional hydropower capacity is expected to be installed by 2025?

• 2.3 GW

• 3.0 GW

• 4.3 GW

• 5.5 GW

What is one state-of-the-art innovation in ocean current energy systems?

• Use of geothermal hybrid systems

• IoT-based real-time monitoring with ESP32 and cloud platforms

• Solar panel integration into turbines

• Pumped hydro storage with wind farms