Describe the difference in polarity for GMAW and FCAW. What terminal does your welding gun go to for both GMAW and FCAW.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms

The short distance from the objective lens to the object causes problems at high magnification. which of the following is the most serious? a. cleaning the object surface b. positioning the object c. reflection from the object surface. d. illumination of the object