What do the lines and/or numbers on a bolt head indicate?
What will be an ideal response?
The number of lines or numbers stamped on bolt heads indicate their grade or tensile strength. The more lines or the higher the number, the stronger the bolt.
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To heat water using solar energy, a(n) ____________________ is used.
Fill in the blank(s) with the appropriate word(s).
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Hot irons may be used to dehorn calves up to _____ months of age
a. 1 to 3 c. 6 to 7 b. 4 to 5 d. 8 to 9
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The terms gastrointestinal tract and alimentary canal refer to the same system
Indicate whether the statement is true or false
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After the high-voltage service plug is removed, a minimum of ____ minutes must pass before beginning service on the system.
A. five B. ten C. fifteen D. twenty
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