What are some of the surface impurities that can contaminate a weld and cause porosity??
What will be an ideal response?
Some of the surface impurities that can contaminate a weld and cause porosity are paint, oil, and moisture.?
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Describe how a tree grows in length. How does it grow in diameter?
What will be an ideal response?
Codes relating to rooftop installation include:
A) International Conditioned Air Code, Rooftop Installation National Code, and International Heating & Cooling Code. B) OSHA, DOE, and EPA. C) Uniform Mechanical code, International Mechanical code, and National Fuel Gas code. D) NIST, UL, and CSA.
Technician A says that the front wheels are able to rotate through 60-80 degrees of rotation. Technician B says that turning the steering wheel all the way left then all the way right is turning the wheel "lock to lock." Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
The inrush current is higher than the sealed current for a relay because the air gaps are larger and the armature is made of laminated metal
Indicate whether the statement is true or false