A duty cycle is the percentage of a 10-minute period during which a welding machine can continuously _____
a. maintain a constant voltage as the output current varies
b. produce a constant current over a wide voltage range
c. produce its rated amperage without overheating
d. establish an arc between the end of the wire electrode and the workpiece
c
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Even though smaller companies may not have a formal quality control program in place, a supervisor is still mainly responsible for _____.
a. researching standards b. building a quality job c. proving controls exist d. posting safety signs
What are the four principal modes for moving freight? Which of these modes carries the largest share of ton-miles? Which carries the lowest?
What will be an ideal response?
A mowing job takes 45 minutes and must be done once a week for 22 weeks per year at $10.00 per hour. What is the labor cost per year?
a. $220.00 c. $9,900.00 b. $990.00 d. $165.00
Grasslands usually are populated:
A. only by members of the Poaceae family. B. only by dicotyledonous plants with blade-like leaves. C. predominately by blade-like dicotyledonous plants and a few Poaceae. D. predominately by Poaceae with other families mixed in.