____ results from gas that was dissolved in the molten weld pool, forming bubbles that are trapped as the metal cools to become solid.

A. Inclusions
B. Porosity
C. Undercutting
D. Incomplete fusion


Answer: B

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If a GMAW welder is set to feed wire at 17 feet per minute, how many minutes would it take for the welder to feed out 1,523 feet of wire?

What will be an ideal response?

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?When inspecting and servicing front wheel bearings on front-wheel-drive cars:

A. ?When the steering knuckle contains two tapered roller bearings, the torque on the drive axle nut does not affect bearing endplay. B. ?Some front wheel bearings mounted in the steering knuckle contain two tapered roller bearings with a split inner race. C. ?Some one-piece front wheel bearing hubs are bolted to the front strut. D. ?In a one-piece front wheel bearing hub, the outer end of the drive axle is splined to the outer bearing race.

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