For resistance welders, the rating for the overcurrent protection device should not exceed what percentage of the primary current rating of the welder?
a. 125%
b. 185%
c. 200%
d. 300%
d. 300%
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On a cold day it is normal for the thermostat to stay closed for more than 15 minutes
Indicate whether the statement is true or false
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Dowel pins must generally be pressed into a hole with an interference tolerance of between 0.002 inches to 0.01 inches, depending on the material and the function of the parts.
Answer the following statement true (T) or false (F)
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While the furnace is operating, heated air and flue products spill out of the burner compartment. What is the problem?
What will be an ideal response?
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By design, which of the following air ducts will allow 250 cfm to flow with a velocity of 500 ft/min?
A. 9" x 8" B. 16" x 9" C. 10" x 9" D. none of the above
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