In automated equipment, the driven machine continuously feeds back information to a master control to maintain any reasonable combination of speed and ____ desired.
a. torque
b. temperature
c. vibration
d. pulses
a. torque
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When performing thermographic surveys, a major deficiency is indicated by a gradient of _____.
a. 3°C b. 6°C c. 12°C d. 16°C
Compared to gypsum, elemental sulfur is sometimes considered a more desirable fertilizer material because ________
A) it is less dependent on warm, moist conditions for availability B) it causes less soil acidity than gypsum C) it contains more nutrient sulfur, kilogram for kilogram, than gypsum D) plants respond to sulfur more rapidly E) all of the above
Technician A says used coolant should never be recycled. Technician B says coolant types that include DEX-COOL are ethylene glycol-based. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
The welding plume is composed of:
A) Welding gas B) Vapors created by the breakdown of filler metal C) Particulate matter D) All of the above