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27 Based on the following Figure, Type 1 decay is ( A) Beta Decay B) Alpha Decay C) Neutron Decay D) Not any decay 2+2 2+1 ZN 28 NRC ) A. Licenses to nuclear facility; B. has mission to protect public health and safety; C. operates a nuclear reactor; D. decommission a reactor; E. maintenance dry storage z2 N-2 NI NN+1 N+2 29 The relationship between half-life T1/2 and the decay constant A is () 30 The absorbed dose of B ray is 1 Rad, what is the dose equivalent (note: the quality factor for B is 1) A) 1 rem; B) 1 Sv; C)10 rem; D) 10 Sv 31 Radiative wastes include ) A) HLW; B) LLW; C) Spent nuclear Fuel; D) Transuranic wastes; E) Milling Tailing; F) Mining Tailings 32 According to Fig.1, 1 and 2 in the figure are A. 1 is reprocessing, 2 is interim storage B. l is interim storage, 2 s reprocessing C. 1 is the separation of U, 2 is the separation of Pu D. 1 is the separation of fission products, 2 is the separation U and Pu NuclearFigure A Reactor Nuclear Fuel Cycle Fuel Back End ot Cycle 4 2 Milling Front End of Cycle Mining Fig.1 Nuclear Fuel Cycle

Explanation / Answer

27:ANS:A

Based on following figure, type 1 deacay is ? Decay

28:ANS:E, Maintanence dry storage

Nuclear Regulatory Commission (NRC) is issuing this regulatory issue summary (RIS) to inform all addressees of changes to the policy for authorizing decay-in-storage requirements for radioactive waste containing byproduct material with half-lives of less than 120 days.

29:ANS:C

Relation between half time and decat rate is   T1/2 = 0.693/?.

30:ANS:D

The absorbed dose of ? ray is 1 Rad which is equivalent t0 10Sv.

31:ANS:C

Spent Nuclear is the Radiative waste.

32:ANS:C

form the figure, 1 is separation of U and 2 is separtion of Pu

33:ANS:B

From the figure, 3 is U nad 4 is Pu

34:ANS:A

The nuclear fuel cycle is called Open nuclear fuel cycle.

35:ANS:C

In halide process, Np is separated by Fluorination.

36:ANS:D

1.Electro refining

2.Oxide reduction

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