____ shall consist of crushed stone or gravel having clean, hard, strong, durable, uncoated particles, free from injurious amounts of soft, friable, thin, elongated or laminated pieces, alkali, organic, or other deleterious matter.
A. Portland cement
B. Coarse aggregates
C. Fine aggregates
D. Reinforcement
Answer: B
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__________ protection should be worn when the highest level of respiratory, skin, and eye protection is needed.
Fill in the blank(s) with the appropriate word(s).
_____ is a moist substance wrapped around a girdled area
A) Sphagnum moss B) Electrician's tape C) Wax D) Cambium
Which of the silicate clays would likely have the highest level of potassium in the crystal structure?
A) fine-grained mica B) chlorite C) smectite D) vermiculite E) kaolinite
When testing an alternator rotor, if an ohmmeter shows zero ohms with one meter lead attached to the slip rings and the other meter lead touching the rotor shaft, the rotor is ________
A) OK (normal) B) Defective (shorted-to-voltage) C) OK (rotor windings are open) D) Defective (shorted-to-ground)