Question

Name two advantages of a nuclear-powered submarine over a conventional submarine.

Short answer

Two key advantages of nuclear-powered submarines over conventional ones are an extended operational span underwater, bolstering their stealth, and increased speed or operational capability thanks to the high power output of nuclear reactors.

Step-by-step solution

Understanding Nuclear Power

Nuclear power has several unique characteristics. Primarily, a nuclear reactor, unlike conventional sources, is capable of producing a significant amount of energy continuously for a long time without needing to be recharged or refuelled.

Identifying Benefits in the Context of Submarines

These characteristics of nuclear power bring two main advantages for submarines. First, nuclear submarines can operate underwater for an extended period (several months to years), as they do not need to surface for air or refuelling, staying submerged keeps the submarines inconspicuous and thus increases their stealth. Second, they have greater speed or operational capability because the high energy output of nuclear reactors provides the submarines with a lot more power.