ACTUAL EXAM 280 QUESTIONS AND CORRECT DETAILED
ANSWERS (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
,NICET LEVEL 3 HIGHWAY CONSTRUCTION NEWEST 2024
ACTUAL EXAM 280 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
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
,NICET LEVEL 3 HIGHWAY CONSTRUCTION NEWEST 2024
ACTUAL EXAM 280 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
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.
, NICET LEVEL 3 HIGHWAY CONSTRUCTION NEWEST 2024
ACTUAL EXAM 280 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
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)
What does a white disk on a fire hydrant mean? - ANSWER--While
white on a hydrant means standard size, a white disk means "out of
service"
What does a Windsor Probe test for? - ANSWER--A method of
assessing concrete's compressive strength.
What tool is commonly used to measure bolt tension and torque? -
ANSWER--Skidmore-Wilhelm calibrator
How are lights and luminaires controlled? - ANSWER--Photocells