NICET LEVEL 3 HIGHWAY CONSTRUCTION NEWEST 2024 ACTUAL EXAM 280 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+
NICET LEVEL 3 HIGHWAY CONSTRUCTION NEWEST
2024 ACTUAL EXAM 280 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+
After positioning sanitary pipe in place and filling the joint
completely with joint filler when poured joints are used, what
must you do before removing the runner? - ANSWER- Allow
the sealer to cool completely.
After backfilling sanitary pipe, what must you do to the lines? -
ANSWER- Flush the lines with water to ensure they're
unobstructed.
When measuring sewer lines for payment, how should you
measure? - ANSWER- Measure along the flow line including
the length through valves, ells, tees, valve boxes, reducers,
manholes or other fixtures.
When installing paving geotextile and asphalt binder between
pavement layers to form a waterproofing and stress relieving
membrane, what should the minimum surface temperature be? -
ANSWER- 55F degrees and rising.
When applying asphalt binder to the pavement surface, what is
the temperature range? - ANSWER- 290F to 325F
What are the different types of sign structure inspections? -
ANSWER- 1. Initial inspections 2. Routine inspections 3. In
depth inspections 4. Interim inspections 5. Damage inspections
How often should sign structures be inspected? - ANSWER- For
problematic sign bridges with aluminum, it is recommended to
inspect every 2 years. For cantilever and other non-redundant
structures, a 4 year year frequency is recommended.
What is a "Cantilever" sign structure? - ANSWER- A structure
that extends over traffic and has a support on only one side of
the roadway.
What are the 3 methods of drilled shaft construction? -
ANSWER- Dry shaft, wet shaft and cased shaft.
What is a dry shaft? - ANSWER- A shaft excavation that can be
excavated to its designed depth without the need for slurry or
casing. The dry construction method is used at sites where the
ground water level and soil and rock conditions are suitable to
permit construction of the shaft in a relatively dry excavation
and where the sides and bottom of the shaft may be visually
inspected by the Engineer prior to placing the concrete.
What is the Dry Shaft Construction Process? - ANSWER- The
dry method consists of drilling the shaft excavation, removing
accumulated water and loose material from the excavation,
placing the reinforcement cage, and concreting the shaft in a
relatively dry excavation.
What is slurry? - ANSWER- Slurry is the fluid introduced into
the excavation to assist in maintaining hole stability
What are the 3 types of slurries in drilled shaft construction? -
ANSWER- Mineral, Polymer and Water
According to OSHA, how often should first aid kits be checked
on site? - ANSWER- The contents of first aid kits must be
inspected at least annually.
When new traffic signals are fully operational, how long should
they be tested? - ANSWER- With the signal in full operation,
monitor the 24 hour operation testing for not less than 30
consecutive calendar days.
What does NEMA stand for? - ANSWER- National Electrical
Manufacturers Association
True or False? Do not install traffic loops when pavement is
wet? - ANSWER- True.
What are the steps for installing traffic loops? - ANSWER- Saw
cut, wire and seal for loop wires on the same day. Do not allow
traffic to pass over an open saw cut unless protected.
What are the key benefits of using a thin asphalt overlay? -
ANSWER- The key benefits of a thin asphalt overlay are
improved ride, corrected rutting, impermeability, and reduced
noise.
What does SSPC stand for? - ANSWER- The Society of
Protective Coatings.
How high should granular backfill of a standard under drain be
placed above the top of the collector pipe? - ANSWER- 12
inches (1 foot)
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