Based on Official Syllabus Topics of Actual TPCB PTOE Exam
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NEW QUESTION # 81
Per the AASHTO Roadside Design Guide, a recoverable slope for a roadside is equal to or flatter than:
- A. 1V:6H
- B. 1V:5H
- C. 1V:4H
- D. 1V:3H
Answer: C
NEW QUESTION # 82
Of all the physical characteristics of road users, which is the most important?
- A. Hearing
- B. Strength and coordination
- C. Agility
- D. Vision
Answer: D
NEW QUESTION # 83
What type of intersection crashes are most likely to be reduced if two-way STOP control is replaced with a traffic control signal?
- A. Lane-change collisions
- B. Fixed object collisions
- C. Right-angle collisions
- D. Rear-end collisions
Answer: C
NEW QUESTION # 84
A licensee makes a professional judgment which is overruled. The licensee believes that the life, health, property, or welfare of the public is endangered. The licensee should inform:
- A. His employer
- B. His client
- C. Other authority as may be appropriate
- D. A or B and C
Answer: D
NEW QUESTION # 85
A professional engineer discovers a subcontractor using substandard materials for a traffic control device installation. What is the ethical course of action per the NCEES Model Rules?
- A. Ignore the issue if the client is satisfied
- B. Notify the client and relevant authorities
- C. Approve the work if it meets minimum standards
- D. Discuss the issue only with the subcontractor
Answer: B
NEW QUESTION # 86
Regarding the NCEES Model Code and the various state board codes of ethics:
- A. The NCEES code governs all engineers nationwide, while the state codes also govern engineers in the respective states
- B. Each state board incorporates the NCEES Model Code along with other special rules
- C. The NCEES code governs all engineers unless there is a superseding state code in the state in question
- D. The NCEES code does not bind any engineers; licensed engineers are bound by the state board rules in the state(s) of the license(s)
Answer: D
NEW QUESTION # 87
What are the colors most commonly used for regulatory signs?
- A. White, black, and red
- B. Red, white, and green
- C. Black, yellow, and red
- D. White, black, and yellow
Answer: A
NEW QUESTION # 88
A licensee receives gifts from suppliers and distributors. For which of the following gifts should he not inform his employer?
- A. Cash rebates
- B. Tickets to sporting events where the supplier does not attend
- C. A sit-down dinner without alcohol
- D. Raffle prize at a conference
Answer: D
NEW QUESTION # 89
A traffic study records 15-minute counts of 500, 450, 400, and 350 vehicles. What is the peak hour factor (PHF)?
- A. 0.93
- B. 0.83
- C. 0.88
- D. 0.78
Answer: C
NEW QUESTION # 90
If 600 vehicles are observed in a 15-minute interval, what is the equivalent hourly flow rate?
- A. 1,800 vehicles per hour
- B. 3,000 vehicles per hour
- C. 2,400 vehicles per hour
- D. 1,200 vehicles per hour
Answer: C
NEW QUESTION # 91
For a signalized intersection, the ITE procedure recommends a yellow change interval based on a perception- reaction time of 1 second and a deceleration rate of 10 ft/s². For a 45 mph approach with a 60-foot intersection width, what is the minimum yellow change interval?
- A. 3.8 seconds
- B. 5.0 seconds
- C. 4.2 seconds
- D. 4.6 seconds
Answer: D
NEW QUESTION # 92
Criticism of another professional's work is:
- A. Ethical only if it directly relates to public safety and welfare
- B. Ethical if truthful
- C. Never ethical
- D. None of the above
Answer: A
NEW QUESTION # 93
When more than one countermeasures are being considered for implementation at a problem location (e.g., both adding a left turn lane and signalizing an intersection), the Crash Modification Factors for the individual countermeasures:
- A. Only the Crash Modification Factor that has the greatest impact is used
- B. Are multiplied together
- C. Cannot be combined
- D. Are added together
Answer: B
NEW QUESTION # 94
In a temporary traffic control zone, the length of a taper to close a single lane on a freeway with a prevailing speed of 70 mph and 12-foot lane widths is:
- A. 550 feet
- B. 980 feet
- C. 840 feet
- D. 680 feet
Answer: C
NEW QUESTION # 95
What is the purpose of a clearance interval in traffic signal timing?
- A. To allow pedestrians to cross the intersection
- B. To synchronize signals at adjacent intersections
- C. To provide time for vehicles to clear the intersection before conflicting movements begin
- D. To extend the green phase for high-volume traffic
Answer: C
NEW QUESTION # 96
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