Describe the overhead GMAW welding position.
What will be an ideal response?
An overhead weld is one of the most difficult positions to weld in, because the weld is upside down and above the technician's head.
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Explain the process of tinning
What will be an ideal response?
When a truck with a pneumatic suspension travels over a bumpy surface, what prevents the height control valve from rapidly cycling (inflating/exhausting) in response to each bump?
A. built in response delay mechanism B. compressibility of air in springs dampens rapid changes in pressure C. both A and B D. neither A nor B
What should a technician do if called to work on an oil burner with a tripped safety reset?
A) Push the reset button and closely observe the ignition sequence. B) Replace the cad cell. C) Replace the oil burner primary control. D) Check the combustion chamber for unburned oil.
How are vectors related to the Cartesian coordinate system?
What will be an ideal response?