The movable part of the relay is called the ____.

a. control coil
b. yoke
c. armature
d. medium

c. armature

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____ are hardwood blocks with threaded rods through them.

a.Wood screws b.C clamps c.Spring clamps d.Quick clamps

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All insulating tools should be stored _____.

a. humid and oiled b. snug and shock-resistant c. dry and clean d. clean and oiled

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What is the most common range for minimum velocities in a horizontal line carrying refrigerant vapor?

What will be an ideal response?

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What is the purpose of wearing rings on a centrifugal pump?

a. Prevents fluid leakage b. Increases compression ratio c. Allows fluid leakage d. Prolongs bearing life

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