What conditions need to be met in order for an appropriate technology to be successful and sustainable over the long run?
What will be an ideal response?
Appropriate technology is discussed more in Chapter 12 as well. Based on the information provided here, especially from Box 8.8, Why Wasn’t the Play Pump a Success?, the most critical factors are that: the materials to make the technology as well as fuels should be locally sourced, there should be a local capacity to repair the system, and spare parts must be available. The technology should also have been appropriately field-tested to avoid failures, which can cause suspicion and a lack of trust by the community.
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A heel bead is used to ________.
A) decrease the solar heat gain through glass. B) increase the R-value of glazing. C) decrease water infiltration through glazing. D) increase the wind-load resistance of glazing. E) none of the above.
What is the maximum voltage permitted when using a motor rated for 208–240V?
a. 253V b. 208V c. 264V d. 240V
Which of the following is the control component in an ABS modulator valve?
A. Engine ECM serial bus B. Relay valve C. Solenoid or motor D. Data display window
There are two basic types of live roof systems. Which type of live roof system is primarily used in residential construction?
A) Extensive vegetated roofs B) Intensive vegetated roofs