The result of a machining operation that establishes a narrow groove on a cylindrical part is a ____.
A. spline
B. neck
C. thread
D. T slot
E. none of the above
Answer: B
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Gaspard Monge developed a graphical analysis technique called ____ in order to solve problems related to angled wall fortresses.
A. projective geometry B. trigonometry C. descriptive geometry D. real analysis
?Why would a welder stick the end of the filler rod in the weld pool as the weld is being stopped?
A. ?It accidentally happens sometimes but they would not do it on purpose. B. ?To prevent dropping it when changing positions. C. ?To help to prevent crater cracking. D. ?It cools off the end of the filler rod to prevent oxidization.
Phosphoric acid fuel cells ____________________
A. can achieve a 90% efficiency by utilizing a combined heat and power system that recaptures waste heat B. have an efficiency that is currently only 30% C. must be pad mounted outside to control the noise generated D. take hydrogen and reform it into sulfur oxides
OBD-II equipped vehicles are required to turn on the malfunction indicator lamp if the system has detected an exhaust emission level that is ________ the FTP limit
A) The same as B) 1.5 times or higher than C) 1.5 times less than D) None of these