The simply supported truss is subjected to the central distributed load w = 120 lb/ft. The top member is a pipe having an outer diameter of 1 inin. and thickness of 3/16 in., and the bottom member is a solid rod having a diameter of 1/2 in. Required:
Neglect the effect of the diagonal lacing and determine the absolute maximum bending stress in the truss.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery