FAA Powerplant Written Practice Test 2025 – Complete Exam Prep

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Question: 1 / 1165

What is a limitation for reciprocating engine starters regarding continuous cranking?

Five-minute limit

One-minute limit

The limitation for reciprocating engine starters regarding continuous cranking is commonly recognized as a one-minute limit. This guideline is set to prevent overheating and damage to the starter motor as well as to ensure that the battery does not become excessively drained, which could impair subsequent attempts to start the engine or lead to premature failure of the starter itself.

Prolonged cranking beyond this limit can lead to overheating due to the electrical resistance in the starter motor and the strain on the electrical system, potentially causing failures or reducing the overall lifespan of the starter components. Following this one-minute guideline allows for a balance between providing sufficient time to start the engine and protecting the starter’s operational integrity.

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Two-minute limit

Thirty-second limit

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