. Research has shown that in free-access gestation stall systems, a sow will rest and eat in a particular

stall about _____ percent of the time, and sows will stay in the gestation stalls over _____ percent of
the day.



a. 50, 50 c. 90, 90
b. 25, 90 d. 75, 75


C

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Type ____ Portland cement is used only in concrete that is exposed to severe sulfate conditions.

A. IIA B. III C. IV D. V

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Answer the following statement(s) true (T) or false (F)

1. Overload units are designed to help energize a motor that is building up excessive heat. 2. Overload units are designed with an inverse time-delay function. 3. The most common type of overload unit is the electronic overload unit. 4. Thermal overload units conduct the motor load current through heater elements.

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?What may need to be done to the root surface of a weld that is prepared on both sides before the next weld pass(es)?

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