While having a discussion, Technician A says that a solenoid has contact points, whereas a relay uses a movable iron piston attached to a contact disc. Technician B says that a relay has contact points, whereas a solenoid uses a steel piston moved against a contact disc by magnetism. Who is correct?

A. A only
B. B only
C. Both A and B
D. Neither A nor B


Answer: B

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Concrete cures to its maximum strength, under normal conditions, in about _____.

a. 7 days b. 14 days c. 21 days d. 28 days

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Meat treated with _____________________ cannot be labeled as organic

Fill in the blank(s) with correct word

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With the aid of the equation developed in Prob. 8.6, determine the time to recover 50% of the yield stress of the deformed zinc crystal at 213 K and 300 K.

What will be an ideal response?

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When part of a view has been removed for clarity, the remaining view is called a ____________________ view.

Fill in the blank(s) with the appropriate word(s).

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