Some circuit requirements may demand that the motors turn off in sequence instead of turning on in sequence. This circuit will require the use of ____ timers.
A. on-delay
B. level
C. automatic
D. off-delay
Answer: D
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The values of current limit, speed, ramping time, and so on for variable-frequency drives are ____.
a. more difficult to adjust b. less accurate than adjusting trim resistors c. hard to read d. programmed into the unit
When walking the cup, there are _____ techniques for adding the filler wire.? ?
A. two? B. three? C. four? D. five?
?Why is the water pressure on water cooled torches kept below 35 psi (241 kg/mm2)?
A. ?To limit the amount of water that is wasted. B. ?To slow the flow of water through the gun. C. ?Higher pressures produce higher water flows, and that can cool the welding too much so it would be harder to get a stable arc. D. ?Higher water pressures can burst the hoses.
What angle length is required for a 5-row bolted connection?
What will be an ideal response?