Select the correct answer from each drop-down menu. Welding is one process that allows you to join two pleces of metal. Choose the correct way to complete the sentences to explain the process of
welding
Gas welding uses
as a source of fuel to generate the heat required to melt the metal. In arc welding,
Is/are the source of energy to produce the heat.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.