"""Functions to prevent a nuclear meltdown.""" def is_criticality_balanced(temperature, neutrons_emitted): """Verify criticality is balanced. Parameters: temperature (int or float): The temperature value in kelvin. neutrons_emitted (int or float): The number of neutrons emitted per second. Returns: bool: Is criticality balanced? Note: A reactor is said to be balanced in criticality if it satisfies the following conditions: - The temperature is less than 800 K. - The number of neutrons emitted per second is greater than 500. - The product of temperature and neutrons emitted per second is less than 500000. """ output = temperature * neutrons_emitted balanced = False if (temperature < 800 and neutrons_emitted > 500) and output < 500000: balanced = True return balanced def reactor_efficiency(voltage, current, theoretical_max_power): """Assess reactor efficiency zone. Parameters: voltage (int or float): Voltage value. current (int or float): Current value. theoretical_max_power (int or float): The power level that corresponds to a 100% efficiency. Returns: str: One of ('green', 'orange', 'red', or 'black'). Note: Efficiency can be grouped into 4 bands: 1. green -> efficiency of 80% or more, 2. orange -> efficiency of less than 80% but at least 60%, 3. red -> efficiency below 60%, but still 30% or more, 4. black -> less than 30% efficient. The percentage value is calculated as (generated power/ theoretical max power)*100 where generated power = voltage * current """ generated_power = voltage * current percentage_range = (generated_power / theoretical_max_power) * 100 if 80 <= percentage_range <= 100: efficiency_level = 'green' elif 60 <= percentage_range < 80: efficiency_level = 'orange' elif 30 <= percentage_range < 60: efficiency_level = 'red' else: efficiency_level = 'black' return efficiency_level def fail_safe(temperature, neutrons_produced_per_second, threshold): """Assess and return status code for the reactor. Parameters: temperature (int or float): The value of the temperature in kelvin. neutrons_produced_per_second (int or float): The neutron flux. threshold (int or float): The threshold for the category. Returns: str: One of ('LOW', 'NORMAL', 'DANGER'). Note: 1. 'LOW' -> `temperature * neutrons per second` < 90% of `threshold` 2. 'NORMAL' -> `temperature * neutrons per second` +/- 10% of `threshold` 3. 'DANGER' -> `temperature * neutrons per second` is not in the above-stated ranges """ output = temperature * neutrons_produced_per_second operational_percentage = (output / threshold) * 100 if operational_percentage < 90: status_code = 'LOW' elif operational_percentage <= 110: status_code = 'NORMAL' else: status_code = 'DANGER' return status_code