What is the leading cause of coupling wear?
A. misalignment
B. lack of attention
C. bad fillers
D. overloading
Answer: A
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What is one advantage and one disadvantage of frequency control?
Fill in the blank(s) with the appropriate word(s).
In a parallel hybrid vehicle, there is a direct mechanical connection between the engine and the wheels.
Answer the following statement true (T) or false (F)
Consider an attempt to lift a row of books on a shelf by pressing against each end and lifting. If enough pressure is exerted inward from both ends, there is sufficient compression to lift all of the books at once. The principle applied to the book shelf is the same as that applied to which category of precast concrete?
A. Reinforced concrete products B. Tension concrete products C. Prestressed concrete products D. Rebar-strengthened concrete products
A suppression action taken by a firefighter around the perimeter of a wildland fire is called:
A. black line B. direct attack C. cold fire edging D. water curtain