The following present serious trouble in designing reactor shield All Questions › Category: Electrical Power Generation › The following present serious trouble in designing reactor shield 0 Vote Up Vote Down Rajasri Mundrathi Staff asked 3 years ago Options:- a) alpha particles b) beta particles c) thermal neutrons d) fast neutrons and gamma rays 1 Answers 0 Vote Up Vote Down Rajasri Mundrathi Staff answered 3 years ago The correct answer is fast neutrons and gamma rays