🔍 Key Concepts

• Mud weight conversion from pounds per gallon (ppg) to pounds per cubic foot (pcf) • Volume calculation for a rectangular tank or pit using dimensions and sounding level • Converting total weight in pounds to kips (1 kip = 1,000 pounds)

💭 Think About

• How do you convert 12 lb/gal to a weight per cubic foot so you can work with feet of sounding in the pit? • Once you know the volume of mud at 5.5 feet in the pit, how do you combine that volume with the mud weight to get total weight in pounds? • After you find total pounds of mud, how do you convert that number into kips to compare with the answer choices?

✅ Before You Answer

• Be sure you know or can find the capacity of pit 1S per foot of depth (usually given in exam reference tables or the stability booklet). • Double-check your unit conversions: gallons to cubic feet and pounds to kips. • Verify that you are using the sounding level (5.5 ft) correctly with the pit’s capacity per foot, not the total pit capacity.