The standard electrode extension for FCAW-S with 0.045" (1.1 mm) wire and an insulating nozzle is 1/4" to 3/8" (6 to 9.5 mm)
1/4" to 3/4" 6 to 19 mm)
1/2" to 1-1/2" (13 to 38 mm)
3/4" to 1-1/4" (19 to 32 mm)

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan