During preloading or elevating the COASTAL...

🔍 Key Concepts

• Preloading and elevating limits specified in the COASTAL DRILLER’s approved operating manual • How total weight (displacement + preload + variable loads) relates to safe jacking operations • The importance of staying within design weight limits during jacking to avoid overstressing the legs and hull

💭 Think About

• Which option best matches the maximum permissible total weight allowed during preloading/elevating before jacking must be stopped? • Think about how a jack-up rig’s structural design limit is usually expressed: is it a relatively higher or lower number compared to normal operating weight? • If the total weight exceeds this limit, what structural risks or failures might occur, and why would the manual be very strict about this value?

✅ Before You Answer

• Check the COASTAL DRILLER operating manual or exam reference for the exact numerical limit for total weight during jacking/preload operations. • Confirm whether the limit is given as “total weight not to exceed” a specific kips value during preloading/elevating. • Verify that you are using the correct unit (kips) and not confusing it with tons or other weight units when comparing the values.

During preloading or elevating the COASTAL DRILLER, jacking-up may continue if the total weight is less than __________.

21,497 kips

21,297 kips

17,700 kips

14,400 kips

🔍 Key Concepts

💭 Think About

✅ Before You Answer