The Parking Brake Test requires the vehicle to hold stationary against the engine in which gear and throttle condition?

Answer: A — Low gear with a light throttle

This test checks the parking brake’s ability to hold the vehicle when the engine is applying some forward torque through the drivetrain. Using a low gear with a light throttle adds a small amount of engine resistance at the wheels, so the car would tend to creep forward if the parking brake weren’t doing its job. The vehicle should stay stationary because the parking brake is holding back that engine torque. If you were in neutral with idle, there’d be virtually no engine torque pushing the car, so the test wouldn’t truly challenge the brake’s holding power. In a high gear with a light throttle, engine braking is reduced, so the test wouldn’t stress the parking brake as much and wouldn’t reflect how it performs under normal starting conditions. Reverse gear isn’t the standard setup for this test either.