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B)Prestressed Concrete HW(IBC-318)

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B)Prestressed Concrete HW(IBC-318)
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11 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the minimum concrete coverage for tendons in a 5-1/2 in. thick slab exposed to weather?

1 in.

2 inches

1-1/2 inches

3 inches

Answer explanation

Media Image

ACI 318-14 20.6.1.3.2

ACI 318-19 20.5.1.3.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ducts for grouted single strand tendons shall have an inside diameter at least _____ larger than the tendon diameter.

1/4 in.

1/2 INCH

1/8 INCH

3/8 INCH

Answer explanation

Media Image

ACI 318-14 20.6.4.3

ACI 318-19 20.5.4.3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Prestressing reinforcement for single strand tendons shall not be tensioned until concrete compressive strength is at least _______

2500psi

3000psi

2000psi

5000psi

Answer explanation

Media Image

ACI 318

26.10.2 J

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Anchorage & couplers for tendons shall develop at least _____ when tested in an unbounded condition

95 fpu

80 fpu

85 fpu

75 fpu

Answer explanation

Media Image

ACI 318

25.8.1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a TWO-WAY slab PT slab, at least __ 1/2 in. dia. Tendons shall be placed in each direction in the slab over a column.

TWO

1

3

4

Answer explanation

Media Image

ACI 318

8.7.5.6.1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Prestressed reinforcement to resist shrinkage & temperature stresses shall provide a minimum effective prestress after losses of at least _____

100psi

1000psi

150psi

200psi

Answer explanation

Media Image

ACI 318

24.4.4.1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are six things taken in to consideration when determining loss of prestress?

ACI 318

20.3.2.6.1

IBC

Table

1808.8

ACI 318

26.10.2

ACI 318

26.10.2

Answer explanation

Media Image

ACI 318

20.3.2.6.1

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