Concrete normally attains its design strength in about ___

a. 14 days
b. 21 days
c. 28 days
d. 30 days


c

Trades & Technology

You might also like to view...

On front-wheel-drive vehicles, a differential is located between the rear wheels.

Answer the following statement true (T) or false (F)

Trades & Technology

The main power distribution system of a large industrial plantĀ is generally shown using a(n) _____ diagram.

A. one-line B. wiring C. three-line D. pictorial

Trades & Technology

The requirements for grounding and bonding electric services can be found in _____.

a. NEC Article 225 b. NEC Article 230 c. NEC Article 240 d. NEC Article 250

Trades & Technology

Which of the following soldering methods is recommended when repairing wiring in electronic engine wiring harnesses?

A. use soldering gun to apply heat to the wire, then apply solder to the wire B. use soldering gun to melt solder, then drizzle onto wire. C. use a propane torch to heat wire, then apply solder D. use a heat gun to heat wire, then apply solder to terminal

Trades & Technology