Engineering, 20.08.2019 18:20 isabellapayton2
Exposed ceiling beams are popular in many modern houses. however, because they are exposed, their ignition in the event of a fire is of concern. consider a 15 cm by 15 cm yellow pine beam, initially at 25°c, attached to a ceiling, thus insulat- ing the base. the three other sides are exposed to fire at 600°c with a combined convective/radiative heat transfer coefficient of 50 w/m2.k. determine the beam's maximum temperature 5 min after fire starts.
Answers: 3
Engineering, 03.07.2019 15:10
Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.
Answers: 1
Engineering, 04.07.2019 19:10
In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?
Answers: 3
Engineering, 04.07.2019 19:10
The short distance from the objective lens to the object causes problems at high magnification. which of the following is the most serious? a. cleaning the object surface b. positioning the object c. reflection from the object surface. d. illumination of the object
Answers: 1
Engineering, 04.07.2019 19:10
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
Answers: 3
Exposed ceiling beams are popular in many modern houses. however, because they are exposed, their ig...
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