AZ L-69 Traffic Control Systems
Contractor Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2027 Q&A | Instant
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1. What is the primary purpose of a Traffic Control Plan (TCP)?
A. Increase construction productivity
B. Reduce material costs
C. Provide safe and efficient movement of traffic through a work zone
D. Eliminate the need for traffic signs
Answer: C. Provide safe and efficient movement of traffic through a work
zone
Rationale: A TCP establishes how traffic, pedestrians, workers, and
equipment will be managed safely during construction or maintenance
activities.
,2. Which national publication establishes standards for traffic control
devices on public roads?
A. OSHA Construction Manual
B. MUTCD
C. Uniform Building Code
D. International Plumbing Code
Answer: B. MUTCD
Rationale: The Manual on Uniform Traffic Control Devices establishes
national standards and guidance for traffic signs, signals, markings, and
other traffic-control devices.
3. What color is generally associated with temporary traffic-control signs?
A. Orange
B. Green
C. Blue
D. Purple
Answer: A. Orange
Rationale: Orange is the standard color associated with temporary traffic
control for construction, maintenance, and incident-management
activities.
,4. What is the primary function of advance warning signs?
A. Direct construction workers
B. Warn motorists about upcoming roadway conditions
C. Mark property boundaries
D. Identify contractor equipment
Answer: B. Warn motorists about upcoming roadway conditions
Rationale: Advance warning signs give drivers information about changes
ahead so they have adequate time to react safely.
5. Which device is commonly used to close a roadway or travel lane?
A. Type III barricade
B. Mailbox
C. Delineator post only
D. Speedometer
Answer: A. Type III barricade
Rationale: Type III barricades are designed for major closures and can
extend across the roadway or shoulder as appropriate.
6. What factor is especially important when determining appropriate taper
length?
, A. Contractor's company size
B. Roadway speed and configuration
C. Paint brand
D. Number of construction workers
Answer: B. Roadway speed and configuration
Rationale: Temporary traffic-control tapers are designed according to
roadway conditions, including speed, width, and type of traffic operation.
7. What is the primary purpose of a traffic-control taper?
A. Store construction materials
B. Guide traffic from one path to another
C. Provide worker parking
D. Increase pavement thickness
Answer: B. Guide traffic from one path to another
Rationale: A taper gradually moves or merges traffic into a changed travel
path, reducing abrupt movements.
8. Which device is commonly used to channelize traffic?
A. Drum
B. Office trailer
Contractor Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2027 Q&A | Instant
Download Pdf
1. What is the primary purpose of a Traffic Control Plan (TCP)?
A. Increase construction productivity
B. Reduce material costs
C. Provide safe and efficient movement of traffic through a work zone
D. Eliminate the need for traffic signs
Answer: C. Provide safe and efficient movement of traffic through a work
zone
Rationale: A TCP establishes how traffic, pedestrians, workers, and
equipment will be managed safely during construction or maintenance
activities.
,2. Which national publication establishes standards for traffic control
devices on public roads?
A. OSHA Construction Manual
B. MUTCD
C. Uniform Building Code
D. International Plumbing Code
Answer: B. MUTCD
Rationale: The Manual on Uniform Traffic Control Devices establishes
national standards and guidance for traffic signs, signals, markings, and
other traffic-control devices.
3. What color is generally associated with temporary traffic-control signs?
A. Orange
B. Green
C. Blue
D. Purple
Answer: A. Orange
Rationale: Orange is the standard color associated with temporary traffic
control for construction, maintenance, and incident-management
activities.
,4. What is the primary function of advance warning signs?
A. Direct construction workers
B. Warn motorists about upcoming roadway conditions
C. Mark property boundaries
D. Identify contractor equipment
Answer: B. Warn motorists about upcoming roadway conditions
Rationale: Advance warning signs give drivers information about changes
ahead so they have adequate time to react safely.
5. Which device is commonly used to close a roadway or travel lane?
A. Type III barricade
B. Mailbox
C. Delineator post only
D. Speedometer
Answer: A. Type III barricade
Rationale: Type III barricades are designed for major closures and can
extend across the roadway or shoulder as appropriate.
6. What factor is especially important when determining appropriate taper
length?
, A. Contractor's company size
B. Roadway speed and configuration
C. Paint brand
D. Number of construction workers
Answer: B. Roadway speed and configuration
Rationale: Temporary traffic-control tapers are designed according to
roadway conditions, including speed, width, and type of traffic operation.
7. What is the primary purpose of a traffic-control taper?
A. Store construction materials
B. Guide traffic from one path to another
C. Provide worker parking
D. Increase pavement thickness
Answer: B. Guide traffic from one path to another
Rationale: A taper gradually moves or merges traffic into a changed travel
path, reducing abrupt movements.
8. Which device is commonly used to channelize traffic?
A. Drum
B. Office trailer
