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Limited Storage in Batteries
What was the primary limitation of early orbiting vehicles in both the US and Russia?
Component degradation from the space environment.
What is the primary factor that limits the life expectancy of a solar power array?
Nuclear reactor systems
Which power source is capable of providing high power in a compact package independent of the sun or environment?
SNAP-10A
What was the name of the only nuclear reactor test mission flown by the United States?
Because it must generate and store electric power for all other spacecraft subsystems
Why is the power system required to interface with almost every other spacecraft subsystem?
Generating and storing electric power while meeting specific requirements for voltage
Which of the following is a primary function of a spacecraft power system?
Deciding whether the power system meets individual subsystem requirements or provides basic power that subsystems must condition themselves
What is a common system level tradeoff in the design of power systems?
To process raw power from the primary source to ensure stable
What is the main purpose of power conditioning and control?
By implementing failure protection modes and preventing short circuits in other subsystems from dragging down main bus voltage
How does a power system provide protection to other subsystems?
Planned growth to 220 kWe or more
What is the current trend for power delivery on the International Space Station?
To minimize the mass of spacecraft wire harnesses and reduce line losses
Why is there a trend towards using higher voltages in modern spacecraft?
Nuclear reactors
According to the power system evolution chart, which source is most suitable for a 1 MW power over several years?
Gallium arsenide (GaAs)
Which solar cell material offers better radiation tolerance than traditional silicon?
Direct Current Switching (placing switches or relays in the positive line)
What design practice helps prevent a single short circuit from aborting a mission?
Close to the source of the arc
Where is the most effective location for arc suppression devices?
It simplifies testing and replacement of failed units and improves maintainability
What is a key advantage of modular construction in power system design?
Eclipse cycle (or eclipse time)
Which orbital factor strongly determines the required battery capacity?
Attitude control concept
What is a design driver specifically related to the spacecraft's configuration?
Power system
Mission failure is almost certain if which specific subsystem fails to function for its design life?
Concorde
What is the fastest commercial airliner in history?
Amelia Earhart
Who was the first female pilot to fly solo across the Atlantic Ocean?
Turboprop
What is a jet-powered propeller engine called?
18
Ilan ang gulong ng Boeing 747?
Philippine Airlines
What is the first and oldest commercial airline in Asia that is still operating under its original name?
Singapore to New York
What is the world's longest commercial non-stop flight?
Emirates
Which airline has the most A380s operating?
12 to 15 mins
How long does a passenger's oxygen mask last?
Makati
Which city did NAIA first operate?
John Gokongwei Jr.
Who is the owner of Cebu Pacific?