If the diameter is doubled while cutting speed remains the same, the RPM will

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Machinist Apprentice Level One Test. Utilize flashcards and multiple choice questions, complete with hints and explanations, to ensure readiness for your exam!

Multiple Choice

If the diameter is doubled while cutting speed remains the same, the RPM will

Explanation:
To keep cutting speed the same as the diameter changes, RPM must adjust inversely with diameter. The usual relationship is v = πDN (with consistent units), where v is the cutting speed, D is the diameter, and N is the RPM. If you double the diameter while v stays fixed, solving for N gives N = v / (πD). Doubling D makes the denominator twice as large, so N must be halved. In other words, the RPM decreases.

To keep cutting speed the same as the diameter changes, RPM must adjust inversely with diameter. The usual relationship is v = πDN (with consistent units), where v is the cutting speed, D is the diameter, and N is the RPM. If you double the diameter while v stays fixed, solving for N gives N = v / (πD). Doubling D makes the denominator twice as large, so N must be halved. In other words, the RPM decreases.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy