The temperature of a commutator is 
C. Express this temperature in degrees Fahrenheit.
Fill in the blank(s) with the appropriate word(s).
68
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Boom lifts are typically used to support _____.
a. a single worker only b. one or two workers c. three or four workers d. four or more workers
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?When the welding current is correct and the weld is not too hot or too cold, the ripples should be______.
A. ?rounded B. ?pointed C. ?teardrop shaped D. ?high and narrow
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The subsequent problems deal with the improved integrator circuit shown below, where: R1 = R2 = Rs = R.
The voltage at the inverting input of the op amp is always
A. Vin ? Vout B. Vout C. 2Vin D. Vin / 2 E. 0 V
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Before entering a confined space, you must _____.