Which of the following is required by OSHA standards when a crane must operate within the prohibited zone around power lines?
a. An insulating link must be installed to isolate the load from the load line.
b. Two dedicated spotters must be assigned to mointor the operation.
c. All members of the lift team must wear insualting garments.
d. The boom of the crane must be electrically isolated from the crane body.
a. An insulating link must be installed to isolate the load from the load line.
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A(n) ____________________ of enclosure can only be used where there were no problems of moisture, dust, or explosive fumes.
Fill in the blank(s) with the appropriate word(s).
The amount of current that it takes to cause ventricular fibrillation is __________ milliamperes.
a. 5 b. 6–30 c. 50–150 d. 1000–4300
Single piston calipers are ________
A) Seldom used on today's vehicles B) Expensive to manufacture C) Leak prone D) Easy to service
A diff-amp with two out-of-phase signal voltages applied to the two inputs is called:
A) phase inverter input. B) phase inverter output. C) differential output. D) differential input.