WorksheetsPrestressed Quiz 1b
Total questions: 9
Worksheet time: 5mins
It is recommended that the support bars for beam tendons are ____ minimum.
#4
#3
#5
1/4 in. pencil rod
Stressing pockets shall be filled with non-metallic non-shrink grout within _____ after tendon tail cutting .
1 DAY
3 days
1 week
10 days
The minimum weight of the PT coating on the prestressing strand shall not be less than _____ per 100ft. of .5 inch diameter strand.
2.5 LBS.
2 lbs.
3 lbs.
3.5 lbs.
Which of the following statements about A416 7 wire tendons is true?
Low relaxation is the standard type
the outer wires are larger in diameter than the center wire.
stress relieved is the standard type
A416 tendons come in threes grades
When stressing tendons on a post-tensioned slab the electric extension cord should be....
3- wire, 12 gauge & not over 100 ft.
2 wire, 10 gauge and not over 150 ft.
3 wire, 14 gauge and not less than 100 ft.
3 wire, 12 not less than 150 ft.
Measured elongation tolerance should be within +- ____ of the calculated elongations.
7 %
5%
3%
2%
Hairpins are required at the anchorage zone when there are ___ or more consecutive anchors spaced at 12 inches or less.
6
5
8
10
If variations between the calculated and actual elongations consistently exceed the allowable tolerance...
Stressing should cease until the cause is determined
stepping should be completed & elongations submitted to the engineer of record
gauge reading should be adjusted to achieve elongations within tolerance.
special inspector should adjust the elongations on the stressing sheets to be within tolerance
The test assembly for static tests shall be less than ____ long between anchorages.
3.5 FEET
2 feet
4 feet
5.5 feet
