Number drills increase in size from #1 to #80.

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 $9.99Unlock all

Prepare for the Machinist Apprentice Level One Test. Utilize flashcards and multiple choice questions, with hints and explanations for each query. Enhance your readiness for the exam!

Multiple Choice

Number drills increase in size from #1 to #80.

Explanation:
Numbered drill sizes work so that the diameter decreases as the number increases. In this system, a No. 1 drill is larger than a No. 80 drill, with No. 80 being one of the smallest bits. So the idea that drills increase in size from #1 to #80 is not correct—the sequence actually shows the opposite: size goes down as the number goes up. When you need a bigger hole, you’d use a drill with a smaller number (larger diameter) rather than a larger number.

Numbered drill sizes work so that the diameter decreases as the number increases. In this system, a No. 1 drill is larger than a No. 80 drill, with No. 80 being one of the smallest bits. So the idea that drills increase in size from #1 to #80 is not correct—the sequence actually shows the opposite: size goes down as the number goes up. When you need a bigger hole, you’d use a drill with a smaller number (larger diameter) rather than a larger number.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy