questions and correct detailed answers
1. What is Mechanically Stabilized Earth (MSE)? A Mechanically Stabi-
lized Earth (MSE) retain-
ing wall is a compos-
ite structure consisting
of alternating layers of
compacted backfill and
soil reinforcement ele-
ments, fixed to a wall fac-
ing
2. What is A Mechanically Stabilized Earth (MSE) The stability of the wall
derived from? system is derived from
the interaction between
the backfill and soil re-
inforcements, involving
friction and tension. The
wall facing is relative-
ly thin, with the prima-
ry function of preventing
erosion of the structur-
al backfill. The result is
a coherent gravity struc-
ture that is flexible and
can carry a variety of
heavy loads.
3. What are Common Causes for MSE Wall Fail- Mechanically Stabilized
ures? Earth (MSE) walls
are routinely con-
structed without ade-
quate drainage or com-
paction, using wide-
ly spaced reinforcement
and low-quality, on-site
clay soils. These laps-
es can cause significant
movement or collapse of
,nicet highway construction level 3 new version actual exam
questions and correct detailed answers
a section, hindering a wall's performance.
,nicet highway construction level 3 new version actual exam
questions and correct detailed answers
4. What are the benefits of repairing an MSE Wall Repair and rehabilitation
In-Place? of an MSE wall is of-
ten 30% of the total
replacement cost, and
our crews can complete
the work around existing
structures.
5. What is used for Temporary Soil Stabilization? Temporary cover (mulch,
plastic, rolled erosion
control product, or tack-
ifier) and / or Tempo-
rary turf establishment
(Apply seed and mulch
for soil erosion protec-
tion and protect it un-
til permanent turf is in
place)
6. What are the Permanent Soil Stabilization ele- (a) Turf establishment.
ments on permanent slopes? Apply seed, fertilizer,
and mulch. (b) Plants,
trees, shrubs, vines,
groundcovers, and other
plants. Furnish and plant
trees, shrubs, vines,
groundcovers, and other
plants. (c) Sod. Furnish
and place sod of peren-
nial turf-forming grasses.
(d) Rock mulch. Furnish
and place rock on fin-
ished surfaces.
7. What is "Mass concrete"? Mass concrete is "any
volume of concrete
with dimensions large
, nicet highway construction level 3 new version actual exam
questions and correct detailed answers
enough to require that
measures be taken to