1. Globally how many people still lack access to electricity?
a. 1.6 million b. 16 million c. 160 million d. 1.6 billion
2. Which of the following are sources of lighting for those without access to electricity?
a. Kerosene, diesel or propane b. Biomass or Yak butter c. Candles d. All of the above are lighting sources
3. What is the most common fuel source for lighting in the developing world?
a. Diesel b. Propane c. Kerosene d. Alcohol
4. What emits over 100kg of greenhouse gas carbon dioxide into the atmosphere yearly?
a. Kerosene Lantern used 4 hours per day b. Pickup truck driven to work every day. c. Bovine flatulence from a herd of cattle. d. Fertilization of 100 acres of wheat.
5. Compared to an industrialized country such as Belgium where lighting electricity accounts for 5% of total electricity use, what percentage of electricity is used for lighting in a developing country such as Tanzania?
a. 3% b. 10% c. 25% d. 86%
6. The cost of illuminating an un-electrified home in the developing world with fuel based lighting compared to an electrified home in the developed world is?
a. One quarter b. One half c. The same d. Double
7. Which of the following is not a hazard of fuel based lighting?
a. Compromised indoor air quality b. Loss of sleep c. Risk of fire and burns d. Hard to work or read by
8. What is the availability of lighting in the home not linked to?
a. Improved security b. Increased birthrate c. Literacy d. Income-producing activities in the home
9. Which of the following is not an advantage of a WLED (white light-emitting diode)?
a. Decreased cost of household heating b. Increased light output c. Lower cost per unit of output d. Greater efficiency over other sources
10. What qualities make WLED lanterns suitable for developing counties?
a. Long service life and direct current operation b. Ruggedness and portability c. Ability to utilize inexpensive and readily available batteries d. All of the above
