Hydro

Question 1

What is the shape of pelton turbine

Answer 1

spoons

Question 2

What is the shape of Francis turbine

Answer 2

Car turbo/snail

Question 3

What is the shape of Kaplan turbine

Answer 3

Boat propeller

Question 4

How to calculate Ratio of flow for turbine efficiency

Answer 4

average flow/ design flow

Question 5

how much of the worlds electricity does hydro provide

Answer 5

20%

Question 6

top 3 Countries with the most hydro-electric production

Answer 6

China 652 Two ,
canada 369 TWh
Brazil 363 TWh

Question 7

Advantages of Hydro

Answer 7

Emissions low (may not be true)
* Used when needed
* Multi-functional
– Recreational e.g. Karapiro Dam (Canoeing)
– Source for irrigation and town water
* Can be used to buffer river flooding

Question 8

Disadvantages of hydro

Answer 8

Initial development involves displacement of
people, destruction of farmland, areas of cultural
value and scenic value, forests and
displacement of wildlife
Weight of dam and reservoir can induce seismic
activity if the dam sits on a fault line
Sedimentation can block up sluice gates causing
dam failure