Technician A says a hydroformed part is usually recognizable because it has sharply formed square corners. Technician B says a kinked frame rail should be replaced because it cannot be repaired without the use of heat. Who is correct?

A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B


B. Technician B only

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What valve controls the water flow delivered to a flush toilet?

a. float valve assembly c. shut off valve b. flush valve assembly d. PVC

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Determine the cotangent of 118.22° rounded to 5 significant digits.

Fill in the blank(s) with the appropriate word(s).

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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

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When using a recovery device manufactured after November 15, 1993, the recovery level for Type I appliances is:

A) 80% of the system charge if the compressor is non-operational, 90% if the compressor is operational. B) 80% of the system charge if the compressor is operational, 90% if the compressor is non-operational. C) 0 psig. D) 80% of the system charge.

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