Which welding process is recommended for the repair of a defect on clean magnesium castings?
A) GTAW B) GMAW C) FCAW D) SMAW
A
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If a system with a TXV metering device is charged to a 5°F subcooling value on a very cool day with a low evaporator load, _____.
a. it will likely be overcharged for all other operating conditions b. it will not likely have enough refrigerant to operate properly at higher temperatures and evaporator loads c. the compressor will overload when it gets warmer outdoors d. the TXV will operate at a dangerously low superheat when it gets warmer
The following are examples of hazardous wastes: ignitable wastes, corrosive wastes, and reactive wastes. Provide a brief description of each.
What will be an ideal response?
Technician A says that a discharged battery (lower than normal battery voltage) can cause solenoid clicking. Technician B says that a discharged battery or dirty (corroded) battery cables can cause solenoid clicking. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
Convert the following complex numbers to polar form:
a. 7 + j9
b. ?2 + j7
