Which of the following correctly explains why it would be beneficial for an engineer to become a member of the Leadership in Energy and Environmental Design (LEED) program? a. In most states, nothing can be built without acceptance into this program. b. It can add to an engineer’s credentials and qualifications. c. It is necessary in order to meet federal regulations. I d. t is considered prestigious by other engineers.

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.