Which of the following conditions is likely to result in a shock hazard?
a. Using a grounded extension cord
b. Using a cord from which the grounding conductor has been removed
c. Connecting a power tool to a GFCI-protected circuit
d. Using a grounded plug in a three-prong receptacle
b. Using a cord from which the grounding conductor has been removed
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Define the purpose of an applied science, and give some examples
What will be an ideal response?Necking of a tensile specimen begins at a true strain of 0.20. The corresponding engineering stress at this point is 1000 MPa. Determine the work hardening rate at the beginning of necking.
What will be an ideal response?
The three-phase motor does not require any current relays, potential relays, or a centrifugal switch because ________
A) it is a low-torque motor, and these relays would cause its torque to become too large B) these switches are mainly used to control for overcurrent conditions C) it has three equal windings instead of a start winding
PLC components are very sensitive to _____
A) static B) air pressure C) light D) humidity