316 - 350

For bundled bars, minimum concrete cover shall be equal to the equivalent diameter of the bundle, but need not be greater than ____ in.; except for concrete cast against and permanently exposed to earth, where minimum cover shall be 3 inches.

• 2

• 1

• 3/4

• 3

Reinforcement partially embedded in concrete shall not be field _______, except as shown on the design drawings or permitted by the engineer.

• Bent

• Modified

• Cut

• Welded

High-early-strength concrete shall be maintained above ______ degrees F and in a moist condition for at least the first ____ days, except when cured in accordance with 5.11.3

• 50, 3

• 50, 7

• 40, 7

• 40, 3

When approved by the building official; water may be present at the place of deposit when ________.

• The concrete is 5000 psi

• Footings are being poured in the rain

• A tremie is used

• The concrete is type III with minimum F’c of 2500 psi

The upper most bar rank indicates ______.

• Mill

• Grade

• Steel type

• Size

When assembling rebar, crossing bars should not be _______.

• Welded

• Held with plastic clips

• Galvanized tie wire

• Stainless steel tie wire

During a 400 yard placement, ______ samples for strength tests are required.

• 2

• 3

• 4

• 8

The concrete should be sampled after ________.

• All water has been added (adjustment water)

• Within 1 hour of the addition of water to the batch

• Within 300 drum revolutions on the mixer

• Within 30 minutes of arrival at site

According to the building code, the minimum depth of footings (except category R3) is ________ inches.

• 6

• 8

• 10

• 12

Seismic hooks with a 135-degree bend require a minimum extension of _____db but not less than _____ inches.

• 12, 2

• 6, 3

• 8, 3

• 6, 2