Question
If the alternator-to-engine drive ratio is 2.65 to 1 , what rpm will the alternator have when the engine is idling at 300 rpm ? Hint: Use a direct proportion. The alternator will have \( \square \mathrm{rpm} \) when the engine is idling at 300 rpm . (Type a whole number or a decimal.)
Ask by Bates Boone. in the United States
Jan 13,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
The alternator will have 795 RPM when the engine is idling at 300 RPM.
Solution
To find the alternator's RPM when the engine is idling at 300 RPM with an alternator-to-engine drive ratio of 2.65 to 1, you can use direct proportion:
\[
\text{Alternator RPM} = \text{Drive Ratio} \times \text{Engine RPM}
\]
Plugging in the values:
\[
\text{Alternator RPM} = 2.65 \times 300 = 795 \, \text{RPM}
\]
**Answer:**
795
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Simplify this solution Mind Expander
To find the rpm of the alternator when the engine is idling at 300 rpm, we can set up a direct proportion based on the drive ratio. The formula for this calculation is: \[ \text{Alternator RPM} = \text{Engine RPM} \times \text{Drive Ratio} \] So, with a drive ratio of 2.65: \[ \text{Alternator RPM} = 300 \, \text{rpm} \times 2.65 \approx 795 \, \text{rpm} \] The alternator will have 795 rpm when the engine is idling at 300 rpm.
