What term describes the exact amount of throttle necessary to obtain or maintain the desired speed under various conditions?

• A. Maximum usable throttle
• B. Idle
• C. Cruise control setting
• D. Partial throttle

Answer: (A)

Cruise control setting describes the exact throttle the system applies to obtain or maintain the desired speed under varying conditions. When you set a speed, the cruise control adjusts throttle automatically to keep that speed, compensating for hills, wind, and load. This is what the term conveys: the controlled, automatic throttle level needed to hold a specific speed as conditions change. Idle is no throttle, maximum usable throttle relates to engine capability rather than maintaining speed, and partial throttle describes a pedal position rather than an automatic speed-maintenance setting.