C# how to shorten multiple If expressions

The correct implementation of the method should be something like following:

public bool IsProductionReadyToStart()
{
    bool isValid = true;

    isValid &= !IsComponentsRequired || ValidatedComponents;
    isValid &= !IsGeometriesRequired || ValidatedGeometries;
    isValid &= !IsPokayokesRequired || ValidatedPokayokes;
    isValid &= !IsTechnicalFileRequired || ValidatedTechnicalFile;
    isValid &= !IsStandardOperationSheetRequired || ValidatedStandardOperationSheet;
    isValid &= !IsOperationMethodRequired || ValidatedOperationMethod;            

    return isValid;
}

when not uing &= then you erase all previous results you checked instead of combine them.

It looks like a collection

public class Validation
{
    public bool Required { get; set; }
    public bool IsValid { get; set; }
}

var validations = new[]
{
    new Validation { Required = true, IsValid = true },
    new Validation { Required = false, IsValid = true },
    new Validation { Required = true, IsValid = false },
};

// return true only when all required validations are valid
public bool IsProductionReadyToStart()
{
    return _validations.Where(v => v.Required).All(v => v.IsValid);
}

I'd go with:

if (IsComponentsRequired && !ValidateComponents) return false;
if (IsGeometriesRequired && !ValidatedGeometries) return false;
...
return true;

This reads more like a checklist.