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Which limitation does belt driven cranking have?

  • A.Belt slip limits torque in very cold conditions
  • B.It cannot generate electricity, which requires a separate alternator to be fitted alongside the starter generator
  • C.It is slow
  • D.It cannot be used above a certain engine speed, which prevents the machine from generating at motorway speeds

Answer: A

A cold engine needs more torque than a belt can transmit, so many vehicles keep a conventional starter for the first start of the day. The machine generates throughout its speed range. Belt tensioning is critical to the design. Naming what changes and what stays the same is the reliable route through questions of this shape. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision. Reading the definition literally, rather than recalling a summary, avoids the usual confusion.

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