Draft an analysis of about 225 words that describes the basic principles of heavy frame construction, including the use of posts and beams. Identify several examples of posts and beams and where they are used throughout the structure. Make sure to include a summary of the three main types of joints used in heavy frame construction and where you might find each joint used. Finally, find two advantages and two disadvantages of heavy frame construction in comparison to light-frame construction.

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.