NEIEP Mechanics Practice Exam

The term that describes the distance between the counterweight buffer striker plate and the striking surface of the counterweight buffer when the car floor is level is referred to as "Runby." This measurement is crucial in elevator mechanics as it ensures that there is sufficient space for the counterweight to function without obstruction when the elevator car reaches its designated floor.

Runby enables the counterweight to have a safe travel distance before reaching the buffer, which is vital for reducing wear on the components and avoiding potential damage. While the other terms may relate to different aspects of elevator operations or mechanics, they do not specifically define this particular measurement. Clearance typically pertains to the space allowances within the elevator shaft or around components, while travel distance can refer to how far an elevator travels between floors. Buffer stroke generally relates to the effective movement of the buffer itself during operation. Thus, in the context of the specific question asked, Runby is the most accurate and relevant term.