Describe the difference between green roughages and silage and give examples of each
What will be an ideal response?
Green roughages are plant materials with high moisture content, such as grasses in pastures and root
plants, including sugar beets, turnips, and rutabagas. Silage is the feed that results from the storage and
fermentation of green crops. Some silages are corn, grasses, legumes, and small grains.
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Describe the plenum system and explain why it is economical from a first-cost standpoint.
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For long-term welding of materials that may produce toxic fumes, a welder should wear a full-face _____
a. HEPA-rated mask b. metal-fume filter c. compressed-oxygen mask d. supplied-air respirator
As the outside air temperature drops, the heating efficiency of air-to-air heat pumps:
A) Is unpredictable. B) Decreases. C) Increases. D) Remains the same.
The wound-rotor induction motor is popular in industry because it has _____ starting torque and _____ starting current.
A. low; low B. low; high C. high; low D. high; high