Aerospace Dimensions Module 2 Practice Exam

Power budgeting is about allocating the limited electrical power available to all spacecraft subsystems over time, balancing what loads need to run with how much energy the batteries can store and how much power the solar arrays can generate. In practice, engineers map out each subsystem’s power needs during different mission phases, account for periods when power generation is limited (like when the spacecraft is in eclipse), and plan charging so batteries stay within safe states of charge. They also include margins and duty cycles so critical systems always have enough power, sometimes throttling or turning off nonessential loads to prevent outages. The other topics relate to propulsion fuel planning, scheduling data links, or generating power, rather than the deliberate allocation and timing of power among systems.