You pasture 55 cows on a 210-acre farm. You want to have at least one bull for every 20 cows. How many bulls are needed?
What will be an ideal response?
3 bulls
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In hand-set multicomponent decks, joists normally _____.
a. are laid across the stringers b. are fabricated from aluminum c. support the stringers d. are spaced a minimum of 10' apart
A common practice in condensing units is to use a contactor with only one set of contacts opening only one side of the power to the unit. This is to ____.
A. reduce the cost of the contactor B. make it easier to wire the unit C. teach the service technician not to put hands in the unit with the power on D. provide off-cycle heat to the compressor
Hot surface igniters are made of
A) Nickel-chrome wire B) Carbon C) Alnico-chromel wire D) Silicon carbide
Using a temperature-controlled bath to calibrate a pneumatic temperature transmitter is a form of _____
A) energy span calibration B) bench calibration C) characterized calibration D) field calibration