AC relays used shading coils on the ____ to prevent contact chatter.
a. iron core
b. multi-core
c. C-core
d. bubble core
a. iron core
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What are the advantages and disadvantages of LEO and GEO?
What will be an ideal response?
Fluid under pressure can be used to transmit motion and force because ________.
A) Fluid conforms to the shape of its container B) Fluids under pressure will apply pressure equally in all directions C) Fluids cannot be compressed D) All of these
A four-stroke engine has a power stroke every 180 degrees.
Answer the following statement true (T) or false (F)
____ are used in the mass production of automobiles, aircraft, railroad cars, home appliances, and similar products where relatively thin sheets are to be welded.
A. Rocker-arm spot welders B. Press-type spot welders C. Portable spot welders D. Resistance welders