Nuclear Power Engineering
A boiling water reactor is the one, in which the

Coolant water, after being heated in the reactor core, generates steam in a boiler
Coolant water is allowed to boil in the core of the reactor
Pressurised water is pumped into the core
Fuel and the coolant are thoroughly mixed to form a homogeneous solution

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Nuclear Power Engineering
A control rod

Is generally made of boron, hafnium or cadmium
Should have large absorption cross-section
Should have small absorption cross-section
Both B and C

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