What is the efficiency rating of a gas furnace with an input of 105,000 Btus and an output of 84,000 Btus?
What will be an ideal response?
80%
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Insufficient preheat during an oxyfuel cutting operation is likely to result in _____.
a. the top surface melting over the cut b. bad gouging at the bottom of the cut c. a pronounced break in the drag line d. a wavy and irregular kerf
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Sketch the truth table for a 5-input OR gate.
What will be an ideal response?
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What is the approximate maximum output voltage swing for a 741 op amp powered by a ±15 V supply?
A. 0 to 15 V B. ?13.6 to 15 V C. ?15 to 15 V D. 0 to 13.6 V E. ?13.6 to 13.6 V
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Most pathogenic bacteria are especially:
What will be an ideal response?
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