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题目

On automatic transmissions, the torque converter is like the ____ in a manual gearboxA. clutchB. leverC. converterD. shifter

On automatic transmissions, the torque converter is like the ____ in a manual gearbox

A. clutch

B. lever

C. converter

D. shifter

题目解答

答案

A. clutch

解析

本题考查对汽车自动变速器和手动变速器部件功能的理解。解题思路是明确自动变速器中变矩器的作用,再对比手动变速器中各部件的功能,找出与之功能相似的部件。

  • 首先,了解变矩器的作用:在自动变速器中,变矩器的主要功能是在发动机和变速器之间传递动力,并且能够在一定范围内改变扭矩,同时还能起到缓冲和离合的作用,使车辆能够平稳起步和换挡。
  • 然后,分析手动变速器各选项部件的功能:
    • 选项A:离合器(clutch)在手动变速器中,其作用是在换挡时切断发动机与变速器之间的动力传递,保证换挡的平顺性,并且在起步时能够实现平稳的动力衔接,这与变矩器在自动变速器中的缓冲和离合作用是相似的。
    • 选项B:杠杆(lever)通常指的是换挡杆,它主要用于驾驶员操作来选择不同的挡位,并不直接参与动力的传递和扭矩的改变,与变矩器的功能不同。
    • 选项C:转换器(converter)在手动变速器中并没有与之对应的具有类似变矩器功能的部件,所以该选项不符合要求。
    • 选项D:换挡杆(shifter)和杠杆类似,是驾驶员操作换挡的装置,不涉及动力传递和扭矩改变的核心功能,与变矩器功能不匹配。

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