The continuous change of both amplitude and polarity of the magnetic field causes currents to be induced into the metal core material. These currents are called ____ currents.
A. induction
B. electromagnetic
C. relay
D. eddy
Answer: D
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Chemical treatment of polyacetals and polymethylpentene polymers consists of submerging the part in a(n) ____ bath.?
A. ?acid B. ?electrolyte C. ?water D. ?acetone
In single-phase motors such as the resistance start induction-run motor, the start winding is disconnected by the _____.
A. centrifugal switch B. disconnect switch C. operator D. overload switch
The animals that judges wish to keep in a competitive event, separate from the herd, are placed in a(n) ____________________ class.
Fill in the blank(s) with the appropriate word(s).
After hardening, tempering should be done:
A) Whenever time permits B) Within 24 hours C) Immediately D) If one feels it is needed for a particular job