Tribology is the study of tribal life in south America.
Answer the following statement true (T) or false (F)
False
Tribology includes the study, application, and principals of friction, lubrication, and wear.
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Welding cable may only be installed in a _____.
a. dedicated cable tray b. nonmetallic cable tray c. cable tray with steam and drainage pipes d. cable tray in hoistways
?In a(n) ____ process, the welder controls all of the manipulation, rate of travel, joint tracking, and in some cases, the rate at which filler metal is added to the weld.
A. ?manual joining B. ?automated joining C. ?machine joining D. ?automatic joining
A micron is a unit of length equal to:
A) 1/1,000 of a millimeter. B) 1/1,000 of a meter. C) 1/1,000 of a inch. D) 1/1,000 of a kilometer.
An RLC parallel circuit has an applied voltage of 240 volts. R = 60 ?, XL = 100 ?, and XC = 32 ?. What is the resistive current?
A. 3.5 A B. 4 A C. 5.4 A D. 6 A