There is only one correct answer for each item. When you have completed the exercise, check

your answers with the answer key that follows. If you answer any item incorrectly, restudy that

part of the lesson that contains the portion involved.

There are two situations in this exercise. Perform them step-by-step as you did during the lesson.

Step 1 (materials to be selected) has been completed for you and appears in each of the problem

statements.

18 inches thick x 5 feet high. The following apply to this situation:

You have three 16-S mixers with a 16-cubic-foot capacity. Each mixer has a batch

cycle of 3 minutes.

The concrete temperature is expected to be 80F.

The materials available are: 1- x 12-inch boards, 2- x 4-inch studs, 2- x 4-inch double

wales, and 3,000-pound snap ties.

1.

Determine the mixer output (in cubic FPH) if the mixer capacity is 16 cubic feet, batch

time is 3 minutes, and the three mixers will be operating for 1 hour.

A.

960

B.

840

C.

3,200

D.

7,400

2.

Determine the plan area for a concrete wall form that is 140 feet long, 5 feet high, and

18 inches thick.

A.

140

B.

180

C.

210

D.

250

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