When three solid-state relays are connected in series, the supply voltage must be _____.

a. half of the minimum operating voltage for a single relay
b. a third of the minimum operating voltage for a single relay
c. triple the minimum operating voltage for a single relay
d. four times the minimum operating voltage for a single relay


c. triple the minimum operating voltage for a single relay

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PROBLEM 3.13 Under normal operating conditions, the electric motor exerts a torque of 2.4 kN ? m on shaft AB. Knowing that each shaft is solid, determine the maximum shearing stress in (a) shaft AB, (b) shaft BC, (c) shaft CD.

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Which of these is a term used to describe when information is added to a constant frequency?

A) Modulation B) Frequency C) Period D) Carrier wave

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If you see the label "TIG" on a welding machine, that machine is considered to be what kind of a welding machine?

A) GMAW B) GTAW C) FCAW D) Stick

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Feeder pigs are purchased and raised to market weight in what type of commercial production?

A. finishing production B. feeder pig production C. farrow-to-finish operation D. purebred production

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