1. The base of power generating systems is A. Biomass gasification B. Coal gasification C. Solar energy D. Wind energy 2. The purpose of wind generator is A. Power generation B. Heat generation C. Power dissipation D. Power consumption 3. The material are de-localized in which is present A. Electrons B. Protons C. Neutrons D. Positrons 4. Photovoltaic types of solar cells are usually connected electrically in manner. A. Series B. Parallel C. Randomly D. Either series nor parallel5. Electricity generating is the main application of solar cells which is generated from A. Water B. Sunlight C. Wind D. Biomass 6. The electricity can be produced by solar power, which is a good source. A. Commercial B. Economical C. Commercial and economical D. Neither commercial nor economical7. We can recharge the portable devices by A. Solar photovoltaic cells B. Solar panels C. Solar batteries D. Solar dishes 8. The special composition of the solar cells allows the electrons to flow in A. Opposite direction B. Multiple directions C. Single direction D. Random direction 9. We can use solar cells in calculators? A. True B. False C. None of these 10. In sunlight hits the panel of solar cells A. Dust B. Photons C. Electrons D. Protons