Name: Score:
79 Multiple choice questions
Term 1 of 79
what is the maximum plant to pour time?
3 hours from plant to pour
30 minutes from plant to pour
1 1/2 hours from plant to pour
2 hours from plant to pour
Term 2 of 79
why does sulfate not mix well with cement?
sulfate is used as a bonding agent in concrete
sulfate will speed up the curing process
sulfate will enhance the strength of the concrete
sulfate Crystals will cause expansion that will result in eventual disintegration in concrete
(concrete cracks)
Term 3 of 79
what is the height required for guardrails around a trench
40"-42"
36"-38"
48"-50"
43"-45"
,Term 4 of 79
a bridge deck should be:
poured with a dry mix
poured with a stiff mix
poured with a sandy mix
poured with a liquid mix
Term 5 of 79
How should aggregates for concrete mixes be measured?
by units
by volume
by weight
by importance
Term 6 of 79
what is the maximum slope of a handicap ramp?
10%
5%
12%
8.3%
,Term 7 of 79
what should you do if the tempature drops when punting concrete
each face
the peeling away of the surface concrete
weight of the concrete
speed up the pour
Term 8 of 79
Keyway
24 hours before exposing to freezing temperatures
A recess in one piece of concrete to improve the shear strength of the next pour by tying
the pour together mechanically
Dry pack mortar is a stiff sand-cement mortar that is typically used to repair small areas
that are deeper than they are wide
the stiffness of a concrete mix
, Definition 9 of 79
Joint formed when a concrete surface hardens before the next batch of concrete is placed
against it
Slip Form
Construction Joint
Cold Joint
Isolation Joint
Term 10 of 79
During the lift of tilt up panel where should center gravity be
at the edge of the slab
between the lift points and the bottom the of slab
at the top of the panel
directly above the lift points
Definition 11 of 79
12hours before pouring
concrete should be trowelled
hard boards should be soaked at least
concrete must cure for at least
when should soil be inspected when trenching?
79 Multiple choice questions
Term 1 of 79
what is the maximum plant to pour time?
3 hours from plant to pour
30 minutes from plant to pour
1 1/2 hours from plant to pour
2 hours from plant to pour
Term 2 of 79
why does sulfate not mix well with cement?
sulfate is used as a bonding agent in concrete
sulfate will speed up the curing process
sulfate will enhance the strength of the concrete
sulfate Crystals will cause expansion that will result in eventual disintegration in concrete
(concrete cracks)
Term 3 of 79
what is the height required for guardrails around a trench
40"-42"
36"-38"
48"-50"
43"-45"
,Term 4 of 79
a bridge deck should be:
poured with a dry mix
poured with a stiff mix
poured with a sandy mix
poured with a liquid mix
Term 5 of 79
How should aggregates for concrete mixes be measured?
by units
by volume
by weight
by importance
Term 6 of 79
what is the maximum slope of a handicap ramp?
10%
5%
12%
8.3%
,Term 7 of 79
what should you do if the tempature drops when punting concrete
each face
the peeling away of the surface concrete
weight of the concrete
speed up the pour
Term 8 of 79
Keyway
24 hours before exposing to freezing temperatures
A recess in one piece of concrete to improve the shear strength of the next pour by tying
the pour together mechanically
Dry pack mortar is a stiff sand-cement mortar that is typically used to repair small areas
that are deeper than they are wide
the stiffness of a concrete mix
, Definition 9 of 79
Joint formed when a concrete surface hardens before the next batch of concrete is placed
against it
Slip Form
Construction Joint
Cold Joint
Isolation Joint
Term 10 of 79
During the lift of tilt up panel where should center gravity be
at the edge of the slab
between the lift points and the bottom the of slab
at the top of the panel
directly above the lift points
Definition 11 of 79
12hours before pouring
concrete should be trowelled
hard boards should be soaked at least
concrete must cure for at least
when should soil be inspected when trenching?
