核电专业英语试题库Lesson 1 The basic Concepts for Nuclear Physics 1. A nucleon is composed of protons and neutrons, and constitutes practically all the mass of the atom. （）key:×type: judgment question2. In the nuclear reactions mass and energy is interchanged. ( )key:√type: judgment question3.Capturing gamma radiation is a result of fission. ( ) key:×type: judgment question4.The binding force acts only when the nucleons are ( )A. largeB. close to each otherC. similarD. excited key: Btype: single-choice question5.Atoms having the same atomic number Z,but different numbers of neutrons N are called ( ) of the element.A. nucleiB. isotopesC. unitsD. masseskey: Btype: single-choice question6. The excited nuclei become de-excited by emission of ( )A.γ-rays or particlesB.X-raysC. energyD. deuterons key: Atype: single-choice question7.The protons and neutrons are called ( )A. nucleiB. isotopesC. nucleonsD. atomskey: Ctype: single-choice question8.Fission in uranium-238 can be caused by neutrons of ( )A. is easyB. can be caused by neutrons of 0.1MevC. can be caused by neutrons of 1.5MevD. never realizekey: Ctype: single-choice question9.( ) are emitted during fission and the possibility of a chainreaction is realized.A. ElementsB. FragmentsC. γ-rays D. Neutronskey: Dtype: single-choice question10.Which are the fissile nuclei among the following isotopes? ( )A. 233UB. 235UC. 239PuD. 238Ukey: A,B,Ctype: multiple-choice questionLesson 2 Radiation11. The γ-rays has many charges. （）key:×type: judgment question12.Low energy neutrons usually interact with nucleus more difficult than high energy neutrons. ( )key:×type: judgment question13.In the photoelectric effect, the photon is ( ).A. producedB. foundC. eliminatedD. increasedkey: Ctype: single-choice question14.Beta particles presents ( ) shielding problem.A. noB. no seriousC. aD. seriouskey: Btype: single-choice question15.When radioactive isotopes decay the ( ) are formed.A. protonsB. daughter productsC. radioactive isotopesD. neutron and electronkey: Btype: single-choice question16.Alpha particles can ( ) the outer layer of skin of the body.A. penetrateB. passC. be acceleratedD. be stopped bykey: Dtype: single-choice question17.Beta particles are capable of producing ( ) as they penetrate a substance.A. large amounts of ionizationB. energyC. photonsD. particleskey: Atype: single-choice question18.Alpha particles are ( ) in their motion than electrons.A. fasterB. slowerC. heavierD. less readily deflectedkey: Dtype: single-choice question19. The interaction between gamma rays with matter includes ( ).A. photon-electron scatteringB. Slowing by atomsC. photoelectric effectD. electron-positron productionkey: A,C,Dtype: multiple-choice question1Lesson 3 Nuclear Reactions20. We let the macroscopic cross section be labeled .（）key: √type: judgment question21.The energy released in nuclear reaction is about a million times as great as for the chemical reaction. ( )key: √type: judgment question22.There are several similarities between nuclear and chemical reactions, such as( )A. the same energy releasedB. conservation of chargeC. conservation of particles’ number involvedD. conservation of mass-energykey: B,C,Dtype: multiple-choice questionLesson 4 Nuclear Materials23.Hydrogen and deuterium, being gases, are suitable moderators. （）key:×type: judgment question24.Boron is the most common materials for controlling reactors. ( )key:√type: judgment question25.Beryllium as fuel cladding ( ) in power reactor.A. is usedB. useC. has been usedD. hasn’t been used key: Dtype: single-choice question26.Liquid metals are potentially excellent reactor ( )A. moderatorB. structure materialC. coolantD. material key: Ctype: single-choice question27.Uranium dioxide can ( ) high burnups.A. not to be usedB. be used toC. use toD. be used with key: Btype: single-choice question28.During common reactor operation zirconium ( )steam.A. reacted withB. cannot react withC. can react withD. cannot be reactedkey: Btype: single-choice question29.Uranium in ( ) form can be used as fuel material for water cooled reactors.A. pure uraniumB. uranium dioxideC. uranium hexafluorideD. uranium carbidekey: A,B,Dtype: multiple-choice question30.The choice of moderator for thermal reactors is mainly limited to the following materials :( )A. waterB. berylliumC. heavy waterD. graphite key: A,C,Dtype: multiple-choice question31.对热堆而言，水作为慢化剂显然是一种最显而易见的，同时水还能作为冷却剂。