Transportation Operations & Safety Flashcards
7 cards from real TRIP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Transportation Operations & Safety flashcards as text
What is the primary regulatory purpose of the FMCSA's Electronic Logging Device (ELD) mandate?
Answer: To automatically record a commercial driver's hours of service
The ELD mandate requires devices that automatically record driving time, replacing paper logbooks to improve hours-of-service compliance and reduce fatigue-related crashes.
Under FMCSA drug and alcohol regulations, a commercial driver is prohibited from operating a CMV if their blood alcohol concentration (BAC) is at or above:
Answer: 0.04%
FMCSA sets a 0.04% BAC threshold for commercial drivers—half the standard 0.08% limit—reflecting the higher public safety responsibility of CMV operators.
Which sections of Title 49 CFR contain the Hazardous Materials Regulations (HMR) governing transportation of dangerous goods by motor carrier?
Answer: Parts 171–180
The HMR are codified in 49 CFR Parts 171–180 and cover hazmat classification, packaging, marking, labeling, placarding, and incident reporting requirements.
What is the meaning of a 'Satisfactory' safety rating issued by the FMCSA following a compliance review?
Answer: The highest rating, indicating the carrier has adequate safety management controls in compliance with regulations
'Satisfactory' is the highest FMCSA safety rating, confirming that the carrier's safety management controls meet or exceed federal regulatory standards.
In freight transportation, 'intermodal transportation' is best described as:
Answer: Moving cargo in standardized containers across multiple transport modes without unloading the goods
Intermodal transportation uses standardized containers that transfer seamlessly among truck, rail, and ocean vessels, reducing handling costs and transit time.
What is the maximum gross vehicle weight allowed for a standard five-axle tractor-trailer combination on U.S. federal interstate highways?
Answer: 80,000 pounds
The federal Bridge Formula and weight statutes set the maximum gross vehicle weight for a standard five-axle combination at 80,000 pounds on interstate highways.
Within the CSA program, which tool does FMCSA use to prioritize motor carriers with the worst safety performance for interventions and investigations?
Answer: Intervention Selection Model (ISM)
The ISM uses SMS BASIC percentile scores to rank carriers by safety risk and determine which ones should receive targeted FMCSA interventions, from warning letters to full investigations.