$11$

$.$

$[4]$

$$For a thermal reactor, sketch the effective multiplication factor as a function of

operation time and identify and explain major features of your sketch.

$12$

$.$

$[4]$

$$For a fast reactor, sketch the effective multiplication factor as a function of

operation time and identify and explain major features of your sketch.

$13$

$.$

$[4]$

$$For a thermal reactor, sketch how an effective delayed neutron fraction would change as a function of operation time and identify and explain major features of

your sketch.

$14$

$.$

$[4]$

$$For a fast reactor, sketch how an effective delayed neutron fraction would change

as a function of operation time and identify and explain major features of your

sketch.