Complete Exam Questions and Verified Answers | 2026–2027
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Study Guide
SECTION 1: WORK ZONE TRAFFIC CONTROL (Q1–Q30)
Question 1
An Area Supervisor is conducting an early-morning inspection after a severe winter storm.
Several crews have reported potholes, damaged signs, blocked drainage inlets, and fallen
branches. Which responsibility should receive the highest immediate priority?
A) Scheduling routine pavement markings
B) Repairing minor cosmetic pavement defects
C) Identifying and controlling hazards that pose an immediate threat to motorists, pedestrians,
and workers
D) Completing administrative paperwork from the previous shift
Correct Answer: C
Rationale: An Area Supervisor must prioritize safety-critical conditions before routine
maintenance. Hazards such as obstructed travel lanes, unstable structures, flooding, fallen
trees, or dangerous debris can cause crashes or injuries and therefore require immediate
assessment, traffic protection, and corrective action .
Question 2
A crew is assigned to perform maintenance within an active roadway. Before work begins, the
Area Supervisor notices that workers have entered the work area without adequate traffic
control. What should the supervisor do?
A) Allow the work to continue because the crew is experienced
B) Tell workers to move faster so exposure time is reduced
C) Stop or delay the operation until appropriate traffic-control measures are established
D) Assign one worker to stand in the roadway and warn motorists
Correct Answer: C
,Rationale: Worker safety and roadway-user safety must be established before maintenance
begins. An experienced crew does not eliminate the need for appropriate traffic-control
measures. The supervisor should correct the deficiency before exposing employees to moving
traffic .
Question 3
When placing advance warning signs for a work zone on an urban high-speed roadway, at what
distance should the first "ROAD WORK AHEAD" sign be placed?
A) 500 feet
B) 1,000 feet
C) 1,500 feet
D) 2,000 feet
Correct Answer: C
Rationale: For urban high-speed roadways, advance warning signs should be placed at 1,500
feet, with additional signs at 1,000 feet and 500 feet as needed. This provides adequate
warning for motorists traveling at highway speeds.
Question 4
A supervisor is setting up a lane closure on a roadway with a posted speed limit of 40 mph.
What is the correct taper length formula?
A) L = WS × 2/60
B) L = WS
C) L = WS × 2
D) L = W/S
Correct Answer: A
Rationale: For speeds of 40 mph or less, the taper length formula is L = WS × 2/60, where W is
lane width and S is speed. For speeds of 45 mph or greater, the formula is L = WS.
Question 5
What is the minimum spacing for traffic cones in the taper of a work zone?
A) 10 feet
B) 20 feet
, C) 30 feet
D) 40 feet
Correct Answer: B
Rationale: Cones should be spaced at 20-foot intervals in the taper of a work zone,
transitioning to 40-foot spacing in the activity area.
Question 6
A supervisor is setting up a work zone on the FDR Drive. What additional safety device is
required in high-speed work zones?
A) Additional cones
B) Truck Mounted Attenuator (TMA) and shadow vehicle
C) More flaggers
D) Portable lighting
Correct Answer: B
Rationale: A Truck Mounted Attenuator (TMA) and shadow vehicle are required in high-speed
work zones such as the FDR Drive, Belt Parkway, and West Side Highway. The TMA protects
workers from errant vehicles.
Question 7
What certification must flaggers have to control traffic in a work zone?
A) OSHA 10
B) ATSSA certification
C) DOT flagger license
D) NYPD permit
Correct Answer: B
Rationale: Flaggers must be ATSSA certified and use a STOP/SLOW paddle that is 24 inches in
size. They must wear high-visibility Class 3 ANSI/SEA 107 apparel.
Question 8
Where should a flagger position themselves in relation to the work area?