Sprayed Applied Fireproofing 4a

If there were 76 BEAMS to receive fireproofing on the 2^nd floor of building, how many should be checked for THICKNESS

• 19 BEAMS

• 15 beams

• all the beams

Answer explanation

IBC

1705.15.4.5 STRUCTURAL MEMBERS

...............Thickness testing shall be performed on not less than 25 percent of the Structural members on each floor...

When determining the Thickness of a DENSITY test specimen , how many measurements are made per sample ?

• 12*

• 9

• 7

Answer explanation

12A

5.4.4.2 THICKNESS

.......................A minimum of 12 measurements shall be made in a symmetrical pattern prior to removal. The average value of these 12 measurement shall be deemed the thickness of the specimen

According to manual 12A , what is the minimum size of a DENSITY sample ?

• 48

  sq. in.

• 60 inches

• 100 inches

Answer explanation

12A

5.4.4 MEASUREMENT Method

5.4.4.1 Length & Width

..............................................

The specimen area shall be not less than 48 sq. in. where possible , no dimension shall be less than 3 in.

How many individual Thickness measurements ( total ) need to be taken for a wide flanged COLUMN ?

• 24*

• 12

• 9

Answer explanation

IBC

1705.15.4.8

WIDE FLANGED COLUMN

At wide flanged column, thickness measurements shall be made at 12 locations around column at each end of a 12-inch length

How many DENSITY samples should be obtained for a floor with 12,300 ft² of floor area & the columns, beams & underside of decks receiving fireproofing ?

• 15*

• 10

• 20

Answer explanation

IBC

1705.15.5 DENSITY

1. 1.

2. From each Floor , Roof , & Wall assembly at the rate of not less than ONE Sample for every 2,500 square feet

2.

From Beams , Girders , Trusses , & Columns at the rate of not less than ONE Sample for each type of Structural member for each 2,500 square feet

If the specified Thickness for a Beam is 7/8 inches , what is the minimum allowable individual measurement ?

• 21/32^nd

• 3/4

• 5/8

Answer explanation

IBC

1705.15.4.1

MINIMUM ALLOWABLE THICKNESS

.............For design thickness of less than 1 inch. the minimum allowable individual thickness shall be design the design thickness minus

25 percent

A.H.S.S column requires a specified thickness of 1-1/4 inches, four measurements are taken as follows

1-1/4 , 1-1/8 , 1-7/16 , 1-1/2

• 1 - 9/32^nd in.

• 1 - 1/4

• 1 - 5/16

Answer explanation