Exam Questions and CORRECT Answers
Erect _____________ sign 250' in advance of any section of roadway where traffic must
travel on a planed surface. - CORRECT ANSWER- ✔✔Grooved Pavement (CMS 2019,
section 614.055)
Furnish cones, drums, signs, sign support, barricades, and other traffic control devices that
are certified to meet _____________. - CORRECT ANSWER- ✔✔NCHRP 350 (CMS 2019,
Section 614.03)
(T/F) Escort transport vehicles without proper strobe lights, LED warning lights or rotating
beacons or conspicuity tape to and from the work zone only with the approval of the Engineer
- CORRECT ANSWER- ✔✔True (CMS 2019, section 614.11)
Repair or replace unsatisfactory markings immediately and at no additional cost to the
department, if the marking were in place for __________ days or less. - CORRECT
ANSWER- ✔✔120 calendar days (CMS 2019, section 614.11)
All barriers segments are to be marked on the top, as shown, PCB-Rxx-350-TL3. What does
the xx stand for? - CORRECT ANSWER- ✔✔it will indicate the year casted
The contractor shall select one of the three acceptable options for terminating portable
barriers. - CORRECT ANSWER- ✔✔Refer to NOTE ITEMS #3 a), b), and c)
Cones used for night time traffic control shall have a minimum height of ____________? -
CORRECT ANSWER- ✔✔42" (Drums/Cones, section 13B)
For construction of temporary walkways, the maximum grade shall be _____________ unless
specified otherwise? - CORRECT ANSWER- ✔✔5% (MT110.10 (5B))
____________________ shall be used to protect pedestrians from thrown object from
passing vehicle? - CORRECT ANSWER- ✔✔Plywood Walls ( MT-110.10 (7E))
, Temporary sign support requirements, Class B supports shall be used at the following
locations _________________ - CORRECT ANSWER- ✔✔Within the clear zone where
protected by guardrail or concrete barrier or retaining wall/ or outside the clear zone (MT-
105.10, Class B, (a) & (g))
Class A supports are fixed to the top of portable barrier by ______________? - CORRECT
ANSWER- ✔✔Set screws (MT-105.1)
What is the merging taper rate minimum for a 55 mph speed limit? - CORRECT ANSWER-
✔✔55:1 (MT-95.40, Table II)
How are portable barriers terminated? - CORRECT ANSWER- ✔✔Shall be terminated on
the paved shoulder if the cross-slope is greater than 10:1 (MT-94.40, 14a-14j)
Use of cones at night shall be ________________ along tapers? - CORRECT ANSWER-
✔✔This is prohibited
Drum spacing along a Two-way traffic taper shall be ______________ center to center? -
CORRECT ANSWER- ✔✔10' (MT-96.11 (a) drums/cones)
What retroreflective surface should an attenuator nose (without stripes) have? - CORRECT
ANSWER- ✔✔Solid fluorescent yellow (MT-101.70)
Spacing of a barrier reflector without a glare screen shall be _____________? - CORRECT
ANSWER- ✔✔50' maximum center to center, Top-mounted object markers (6"x12") at 50'
maximum, Barrier reflectors and object markers to be alternated at 25' spacing (MT-101.70)
Portable barrier glare screen panels? - CORRECT ANSWER- ✔✔Glare screen delineation
are vertical stripes. Vertical stripes ae Type G, H, or J (2'x12"). They shall be placed in groups
of 3, on adjacent paddles at 50' center to center (MT-101.70)
What protection is needed for a 10" drop-off in a work zone? - CORRECT ANSWER-
✔✔refer to MT-101.90 Condition 2