Aggregates make up about _____ of the volume of concrete.
A. 10 to 15 percent
B. 20 to 40 percent
C. 35 to 50 percent
D. 60 to 80 percent
Answer: D
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Employees can identify their job-site rights by reading OSHA Form No. _____.
a. 3165 b. 3125 c. 3170 d. 3100
List at least four of the eight roles of team members as outlined in the textbook. _____________ _____________ _____________ _____________
Fill in the blank(s) with the appropriate word(s).
A leaking evaporative system can be diagnosed using ________
A) A smoke machine B) Nitrogen gas and headphones C) Either of these D) Neither of these
What is the impedance of a single phase inductive circuit having a voltage of 240 volts and a current flow of 10 amps?
A) 240 volts / 10 amps = 24 ohms impedance B) 10 amps / 240 volts = 0.042 ohms impedance C) 240 volts × 10 amps = 2400 ohms impedance D) Impedance cannot be calculated using only volts and amps.