A work clamp ____.
A. may have power losses that should be ignored
B. reduces welding efficiency
C. must not clamp too tightly to the material
D. should be carefully touched occasionally to determine if it is hot
Answer: D
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On the assumption that the self?diffusion coefficient of a simple cubic metal whose lattice constant, a, equals 0.300 nm is given by the equation:
Perform the indicated operation and solve:72 รท 3 - 5 x 4 =
What will be an ideal response?
If none of the detectors in a level measurement system are in contact with the measurement material, the system is described as __________.
A. displacing B. inferential C. noninvasive D. resistive
A series circuit consists of three resistors with values of 1.2 k?, 2.2 k?, and 3.3 k? across a 15-V source. The current through the 2.2 k? resistor is
A) 10 mA B) 2.24 A C) 6.81 mA D) 2.24 mA