Transport
What this domain tests
Transport questions cover fleet fuel use, idling, routing, and alternative fuels. The math is straightforward; the trap is unit discipline and baseline quality.
Core rules
- Annual fuel = miles ÷ MPG, or hours × gallons/hour for idling.
- Telematics and route optimization reduce miles and idle time; both are measurable.
- Payload, tire pressure, and speed affect fuel economy; above 50 mph, aerodynamic drag dominates.
- Electrification shifts energy to kWh/mile; compare on a consistent well-to-wheel or site basis.
- Build a route-level baseline in gallons or kWh per mile before claiming savings.
Worked example
A 20-truck fleet runs 25,000 miles/yr per truck at 6 MPG. Fuel = 20 × 25,000 ÷ 6 = 83,333 gallons. Improving to 7 MPG gives 20 × 25,000 ÷ 7 = 71,429 gallons, saving 11,904 gallons/yr. At $3.50/gal, that is $41,664/yr - usually enough to justify telematics, driver training, and idle-reduction policies.
Traps
Mixing imperial and U.S. gallons; assuming idle hours without telematics data; ignoring payload and duty cycle; and claiming EV savings without accounting for charging efficiency and demand charges.