🔍 Key Concepts

• How power is distributed to different pieces of equipment on a drilling rig • The difference between fixed mechanical linkages (like shafts and gears) and routed electrical cables • What it means for a power system to be "flexible" in layout and operation

💭 Think About

• Think about which option best explains WHY rigs can place heavy machinery in many different locations and still power it effectively • Ask yourself: which type of power makes it easier to add, move, or reconfigure equipment without major structural changes? • Consider what happens if you need to run power to equipment far from the engines—what kind of system makes that simpler?

✅ Before You Answer

• Before choosing, picture how hard it is to run shafts, chains, or belts versus running cables around a large rig • Verify which choice directly relates to layout and reconfiguration of equipment, not just cost or weight • Eliminate any options that talk about benefits that are not the main reason rigs use electric drives (like minor fuel savings or slight weight differences)