What are the two advantages of using electro-magnets to create a magnetic field?
What will be an ideal response?
First, the strength of the magnetic field is controlled by the intensity of the current flow through the wire coil, and second, the magnetic pole polarity is reversed when the direction of current flow through the wire coil is reversed.
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Name and describe the location of the symbol used when a welded connection must be performed all around a feature.
What will be an ideal response?
What is builder's risk insurance, and why is it purchased?
What will be an ideal response?
All of the following statements about injecting a dye solution into the air conditioning system are true, EXCEPT:
A. Dye is approved for automotive air conditioning system use. B. The dye affects the overall performance of the system. C. Dye is available in either yellow or red. D. A few days after injection, the dye will be visible at the point of a small leak.
A professional driver must carry _____ at all times for law enforcement officers to examine.
A. shipping papers B. a medical certificate C. the driver's daily logs D. all of the above