Technician A says that sand scratch swelling is a defect that occurs due to airborne contamination. Technician B says that sand scratch swelling occurs due to poor surface preparation. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
B. Technician B only
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Solid-state control logic elements convert a single input into a single output by controlling a ____.
a. transistor b. contactor c. solenoid d. starter
During start-up, you should ensure that all ____________________ are securely held in the I/O rack, and that field wiring arms (if applicable) are fully seated and locked.
What will be an ideal response?
Unlike gravel and sand, whose particles are roughly the same size in all three directions (i.e., equidimensional), clay particles are flat (plate-like or flakes). This particle shape makes clay an unstable soil that swells with the addition of water and shrinks when dry. Explain the cause of this phenomenon.
What will be an ideal response?
Design of a product aims to mediate between the ________ and ________.
A. opportunity costs; innovation B. the customer; market values C. the novel concept; established institutional needs D. static beliefs; entrenched firms