A drilling bit which is doughnut shaped to...

Question 1 / 2707066636ee728f7522a1c517a1b

Question 1 of 2707066636ee728f7522a1c517a1b

A drilling bit which is doughnut shaped to permit recovery of the center portion of the hole drilled is called a __________.

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Question 1 of 27070

A drilling bit which is doughnut shaped to permit recovery of the center portion of the hole drilled is called a __________.

🔍 Key Concepts

• Types of drill bits used in offshore drilling and what each is designed to do • How core samples are taken from the seabed or formations • The difference between a bit that removes all material vs. one that leaves a solid center section

💭 Think About

• Which type of bit would be most useful if you want to study the exact material in the center of the hole being drilled? • Think about which term is associated with taking a sample (or "plug") of rock or soil rather than just creating a full‑diameter hole. • Which option names a tool that enlarges or redirects a hole, instead of collecting a center portion?

✅ Before You Answer

• Match the term that specifically relates to sampling the center material of the hole. • Eliminate any answer that mainly describes enlarging a hole or directing flow rather than sampling. • Ask: Which option name have you seen used with geological or formation sampling in drilling contexts?

Question 1 of 27070

A drilling bit which is doughnut shaped to permit recovery of the center portion of the hole drilled is called a __________.

diverter bit

core bit

hole reamer

conventional bit