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

Trades & Technology

You might also like to view...

Employees can identify their job-site rights by reading OSHA Form No. _____.

a. 3165 b. 3125 c. 3170 d. 3100

Trades & Technology

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).

Trades & Technology

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

Trades & Technology

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.

Trades & Technology