This was not a popular question among the candidates and most of those who answered the question performed poorly. The answers to the parts of the questions where candidates performed poorly include:
Specific areas of production of water power
- in dams e.g. Kainji, Akosombo, Aswan, Shansta, Grand Coules,
Bumbana, Dodo etc.
Method of production of water power
- construction of dam to raise water level to create reservoir;
- water constantly flow from great heights into dam;
- flowing water is channeled into penstocks;
- moving water turns turbine to generate power.
Uses of water power
- domestic uses;
- industrial uses.
Specific areas of production of sun power
- tropical areas;
- sub-tropical areas;
- e.g. Nigeria, Ghana, Sierra Leone, the Gambia, etc.
Method of Production of the power derived from the sun
- capturing through solar receptor/panels;
- the surfaces of receptors which are curved or flat
concentrates the sun energy for use;
- large open spaces required;
- high insolation all year round;
- could also be captured through solar cells and accumulators;
- solar reflectors may be used to redirect the solar energy.
Uses of the type of power derived from the sun
- drying crops;
- powering of watches and calculators;
- production of electricity;
- drying of cloths. |
