everyday science MCQ #5766

Nuclear power reactors are operated at low temperatures and consequently with lower efficiency because:

everyday science MCQ #5766

  1. Question 1

    Q1. Nuclear power reactors are operated at low temperatures and consequently with lower efficiency because:

    • A) Nuclear heat is carried by ordinary steam
    • B) Uranium is difficult to heat
    • C) The walls of nuclear reactors cannot withstand high temperatures
    • D) High pressure inside the reactor reduces the temperature

    Answer: The walls of nuclear reactors cannot withstand high temperatures

    Explanation: Nuclear reactor walls are made of materials that cannot sustain the extreme temperatures and pressures that high-efficiency thermal cycles would require, so reactors operate at relatively modest temperatures.