Aux 2 Unit 3 Quiz 5

Correct Answer:
B) To provide mechanical power for engine starting

Explanation:
A hydraulic rack and pinion starting system uses hydraulic pressure to deliver mechanical energy, turning the engine's crankshaft to start it.

Correct Answer:
B) To regulate the flow of hydraulic fluid and control system operation

Explanation:
A control valve ensures the correct flow of hydraulic fluid to the actuator, initiating and stopping the system as required.

Correct Answer:
B) The hydraulic accumulator

Explanation:
The accumulator stores pressurized hydraulic fluid, providing a quick burst of energy for starting the engine when needed.

Correct Answer:
B) It converts the linear motion of the hydraulic piston into rotary motion

Explanation:
The rack is a toothed bar that interacts with the pinion gear. As the hydraulic piston pushes the rack, its linear motion is converted into the rotational motion needed to turn the engine's crankshaft.

Correct Answer:
B) To push the rack and create the linear motion needed for starting

Explanation:
The hydraulic piston moves under the force of pressurized hydraulic fluid and drives the rack, which then moves the pinion gear to start the engine.

Correct Answer:
B) Hydraulic accumulator

Explanation:
A hydraulic accumulator stores pressurized hydraulic fluid, which is released to power the rack and pinion mechanism, providing the force needed for engine starting.

Correct Answer:
B) The pinion gear

Explanation:
The pinion gear meshes with the rack and rotates when the rack is moved by hydraulic pressure, initiating the turning of the engine’s crankshaft.