Technician A says that an electronic throttle control uses a stepper motor. Technician B says that an electronic throttle control uses is spring loaded to about 16% to 20% throttle opening. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

Question

Quizplus · Accepted Answer

Electronic throttle control systems typically use a DC motor, not a stepper motor, and they are often spring-loaded to a default position of about 16% to 20% throttle opening for safety reasons.

Technician a Says That an Electronic Throttle Control Uses a Stepper