____ transmit energy by a turning or twisting action.
A. Helix springs
B. Torsion springs
C. Flat springs
D. Compression springs
E. none of the above
Answer: B
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A(n) ____ is a fairly level step excavated into the earth material on which fill is placed.
A. level B. inset C. bench D. offset
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One type of luminaire is indirect.
Answer the following statement true (T) or false (F)
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The FDA has declared milk from BST-supplemented cows to be _____
a. safe c. ineffective b. harmful d. unhealthy
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Which of the following is best adapted to dry conditions?
a. white clover c. alfalfa b. red clover d. sainfoin
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