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核电专业英语试题库来自工程公司

核电专业英语试题库来自工程公司
核电专业英语试题库来自工程公司

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 question

2. In the nuclear reactions mass and energy is interchanged. ( )

key:√

type: judgment question

3.Capturing gamma radiation is a result of fission. ( ) key:×

type: judgment question

4.The binding force acts only when the nucleons are ( )

A. large

B. close to each other

C. similar

D. excited key: B

type: single-choice question

5.Atoms having the same atomic number Z,but different numbers of neutrons N are called ( ) of the element.

A. nuclei

B. isotopes

C. units

D. masses

key: B

type: single-choice question

6. The excited nuclei become de-excited by emission of ( )

A.γ-rays or particles

B.X-rays

C. energy

D. deuterons key: A

type: single-choice question

7.The protons and neutrons are called ( )

A. nuclei

B. isotopes

C. nucleons

D. atoms

key: C

type: single-choice question

8.Fission in uranium-238 can be caused by neutrons of ( )

A. is easy

B. can be caused by neutrons of 0.1Mev

C. can be caused by neutrons of 1.5Mev

D. never realize

key: C

type: single-choice question

9.( ) are emitted during fission and the possibility of a chain

reaction is realized.

A. Elements

B. Fragments

C. γ

-rays D. Neutrons

key: D

type: single-choice question

10.Which are the fissile nuclei among the following isotopes? ( )

A. 233U

B. 235U

C. 239Pu

D. 238U

key: A,B,C

type: multiple-choice question

Lesson 2 Radiation

11. The γ-rays has many charges. ()

key:×

type: judgment question

12.Low energy neutrons usually interact with nucleus more difficult than high energy neutrons. ( )

key:×

type: judgment question

13.In the photoelectric effect, the photon is ( ).

A. produced

B. found

C. eliminated

D. increased

key: C

type: single-choice question

14.Beta particles presents ( ) shielding problem.

A. no

B. no serious

C. a

D. serious

key: B

type: single-choice question

15.When radioactive isotopes decay the ( ) are formed.

A. protons

B. daughter products

C. radioactive isotopes

D. neutron and electron

key: B

type: single-choice question

16.Alpha particles can ( ) the outer layer of skin of the body.

A. penetrate

B. pass

C. be accelerated

D. be stopped by

key: D

type: single-choice question

17.Beta particles are capable of producing ( ) as they penetrate a substance.

A. large amounts of ionization

B. energy

C. photons

D. particles

key: A

type: single-choice question

18.Alpha particles are ( ) in their motion than electrons.

A. faster

B. slower

C. heavier

D. less readily deflected

key: D

type: single-choice question

19. The interaction between gamma rays with matter includes ( ).

A. photon-electron scattering

B. Slowing by atoms

C. photoelectric effect

D. electron-positron production

key: A,C,D

type: multiple-choice question

1

Lesson 3 Nuclear Reactions

20. We let the macroscopic cross section be labeled .()

key: √

type: judgment question

21.The energy released in nuclear reaction is about a million times as great as for the chemical reaction. ( )

key: √

type: judgment question

22.There are several similarities between nuclear and chemical reactions, such as( )

A. the same energy released

B. conservation of charge

C. conservation of particles’ number involved

D. conservation of mass-energy

key: B,C,D

type: multiple-choice question

Lesson 4 Nuclear Materials

23.Hydrogen and deuterium, being gases, are suitable moderators. ()

key:×

type: judgment question

24.Boron is the most common materials for controlling reactors. ( )

key:√

type: judgment question

25.Beryllium as fuel cladding ( ) in power reactor.

A. is used

B. use

C. has been used

D. hasn’t been used key: D

type: single-choice question

26.Liquid metals are potentially excellent reactor ( )

A. moderator

B. structure material

C. coolant

D. material key: C

type: single-choice question

27.Uranium dioxide can ( ) high burnups.

A. not to be used

B. be used to

C. use to

D. be used with key: B

type: single-choice question

28.During common reactor operation zirconium ( )steam.

A. reacted with

B. cannot react with

C. can react with

D. cannot be reacted

key: B

type: single-choice question

29.Uranium in ( ) form can be used as fuel material for water cooled reactors.

A. pure uranium

B. uranium dioxide

C. uranium hexafluoride

D. uranium carbide

key: A,B,D

type: multiple-choice question

30.The choice of moderator for thermal reactors is mainly limited to the following materials :( )

A. water

B. beryllium

C. heavy water

D. graphite key: A,C,D

type: multiple-choice question

31.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。它有优秀的慢化性能,因此用水作慢化剂的热堆,比其它的热堆有更紧凑的堆芯结构。

key: Water is an obvious choice for the moderator of thermal reactor, and it can also serve as the coolant. It has excellent neutron slowing down properties which enable water moderated reactors to have much more compact cores than are possible in other types of thermal reactors.

type: translation

32.不同形式的铀是核反应堆中最常用的一种燃料。它既可以以金属铀形式使用,也可以以铀的化合物,如二氧化铀或碳化铀的形式使用。key: Uranium in one form or another is by far the most common fuel material for nuclear reactor. It can be used either as pure uranium, a metal, or as a compound such as UO2 or UC.

type: translation

Lesson 5 The Theory of Nuclear Reactor 33.Uranium-238 and thorium-232 are good fissile materials. ()

key:×

type: judgement question

34.If the multiplication factor is less than one the reactor is supercritical. ( )

key:×

type: judgement question

35.In the PWR ( ) is necessary to achieve critical.

A. uranium

B. naturally uranium

C. high enriched uranium

D. slightly enriched uranium

key: D

type: single-choice question

36.The fast reactor contain no ( ).

A. uranium

B. moderator

C. coolant

D. thermal neutron

key: B

type: single-choice question

37.If the breeding ratio is much less 1, then ( ) is used up.

A. most of the available uranium

B. no uranium

C. a lot of uranium

D. only a fraction of the available uranium

key: D

type: single-choice question

38.When the first fuel cha rged is unloaded from the reactor it contains ( ) than it had loaded.

A. more plutonium-239

B. more uranium-235

C. more uranium-238

D. less plutonium

key: A

type: single-choice question

2

39.Nowadays most of commercial reactor use the slightly enriched uranium with ( ) to ( )

percent of 235U as fuel.

A. 20

B. 5

C. 2

D. 90

key: C / B

type: multiple-choice question

40.It is the purpose of reactor theory to analyze the various processes in a reactor, determine their rates

and calculate for a given composition and size of core the value of the multiplication factor.

Alternatively the calculation may be directed towards finding the critical size or composition of a reactor

for a given value of the multiplication factor.

key: 核反应堆理论的任务就是分析反应堆的各种反应过程,已知反应堆堆芯临界尺寸和组分,计算它的

有效增值系数或反过来,已知有效增值系数,计算反应堆的临界尺寸和组分。

type: translation

Lesson 6 The Nuclear Reactor Concepts

41.In a power reactor the energy production depends on moderator. ()

key:×

type: judgment question

42.The time of the operating fuel cycle is about several years. ( )

key:×

type: judgment question

43.A thin zircaloy tube is filled with ( ).

A. fuel pellets and helium

B. pellets

C. helium

D. uranium

key: A

type: single-choice question

44.The liquid sodium is a good ( ) in the reactor.

A. moderator

B. fertile material

C. coolant

D. blanket key: C

type: single-choice question

45.Uranium is ( ) quantity in sea water.

A. not present any

B. present large

C. present small

D. some

key: C

type: single-choice question

46.The depleted uranium is valuable in ( ).

A. PWR

B. heavy water reactor

C. a breeder blanket

D. tested reactor

key: C

type: single-choice question

47.There are two kinds of fuel recycle ways, those are: ( )

A. 235U-236U

B. 232Th-233U

C. 238U-240Pu

D. 238U-239Pu key: B,D

type: multiple-choice question 48.Uranium as an energy resource will mainly depend on the following factors :( )

A. the extent of uranium resource

B. the way it’s used

C. public acceptant

D. the cost

key: A,B,C

type: multiple-choice question

49.The total of 3.65 million tons of uranium which includes RAR and EAR-1 up to costs of $130/kgU are regarded as

the resource which the nuclear industry can be confident will be available for the thermal reactor program of next few decades.

key: 包括RAR和EAR-1在内的总计3.65兆吨、每千克价值130美元的铀被核工业部门认为可供未来几十年

的热堆的发展使用。

type: translation

Lesson 7 Nuclear Reactor Thermohydraulics 50.The maximum permissible temperature of the fuel is one of the most important factors in the design of thermal reactor. ()

key: √

type: judgment question

51.During operation the highest temperature in the reactor is in the center of fuel rod. ( )

key: √

type: judgment question

52.The departure from nucleate boiling is a kind of critical heat flux. ( )

key: √

type: judgment question

53.During nucleate boiling, the small increase in the heated surface temperature makes the heat flux decreases. ()

key:×

type: judgment question

54.To determine the maximum temperature, the calculated temperature drops are multiplied by ( ).

A. fuel temperature

B. hot-channel factors

C. hot pot

D. liquid temperature

key: B

type: single-choice question

55.In a thermal reactor the heat release due to fission ( ) in the fuel.

A. takes place mostly

B. mostly

C. doesn’t take place

D. all takes place

key: A

type: single-choice question

3

56.The power of the reactors is limited by the ( ) channel.

A. center

B. out

C. largest

D. hottest

key: D

type: single-choice question

57.The inlet temperature ( ) all channels.

A. is different for

B. is changed to

C. is same for

D. is mixed between

key: C

type: single-choice question

58.The mainly he at transmission modes in nuclear reactor are :( )

A. flashing

B.convectio n 对流

C. radiation

D. conduction 传到

key: B, D

type: multiple-choice question

59.T he assu mption that all the heat released due to fission takes place in the fuel overestimates ( ).

A. fuel temperature

B. coolant temperature

C. cladding temperature

D. above all

key: A, C

type: multiple-choice question

60.The derivation of the equations for the temperatures of the components of a reactor has been based on the assumption that ideal conditions exist in which all the factors which determine the temperatures are known exactly. This is of course seldom the case in a real engineering system, and in a nuclear reactor factors such as the distortion of neutron flux, incorrect distribution of the coolant flow in the channels or slight variations in the dimensions of the fuel or cladding can cause calculated values of the temperatures to be incorrect. key: 反应堆内各部件的温度方程的导出基于这样一种假设:即在理想条件下,所有决定温度的因素都是精确掌握的。当然,在实际的工程系统中,这是不太可能的。在反应堆中,有些因素诸如通量的畸变,冷却剂流量的不合理分布以及燃料和包壳形状的些微变化都会导致温度计算不准确。

type: translation

Lesson 10 Pressurized Water Reactor

61.Criticality over the reactor lifetime is achieved by control rods. ()

key:×

type: judgment question

62.When the CEA is in serted, the reactivity is withdrawn. ( ) key:×

type: judgment question

63.The reactor core in PWR is located below the inlet and outlet nozzles. ()

key: √

type: judgment question

64.Primary system water enters the reactor vessel through the inlet nozzles, then travels downward in ( ).

A. the tube

B. the annular space

C. the vessel

D. the low plenum

key: B

type: single-choice question

65.The MICDS means ( ).

A. Movable In-core Data System

B. Miniature In-core Detectors

C. Movable In-core Detectors

D. More In-core Data System

key: C

type: single-choice question

66.Chemical shim control is employed as ( ) reactivity control.

A. supplementary means of

B. the most important

C. emergency

D. normal

key: A

type: single-choice question

67.The pressurizer is connected by ( ) to the hot leg.

A. a small pipe

B. a valve

C. a surge line

D. a U tube

key: C

type: single-choice question

68.Control of the core power distribution and reactivity is achieved by a combination of :( )

A. control rods

B. chemical shim

C. pressurizer

D. burnable absorber rods

key: A,B,D

type: multiple-choice question

Lesson 11 Reactor Vessel and Internals

69.Within the reactor vessel the core barrel is a support structure. ()

key: √

type: judgment question

70.The fission threshold detectors monitor the neutron flux. ( )

key: ×

type: judgment question

71.Th e fuel assemblies are put on the lower support structure. ( )

key:√

type: judgment question

72.The core support barrel assembly is supported by its lower end. ()

key:×

type: judgment question

73.The reactor vessel is ( ) with a ledge on the inside surface

A. shell section

B. forged ring

C. forged plate

D. hemispherical forging

key: B

type: single-choice question

4

74.The space between the core shroud and the core support barrel is filled with ( ).

A. fuel

B. helium

C. neutrons

D. coolant

key: D

type: single-choice question

75.The cl osure head is joined to the reactor vessel by ( ).

A. bolting

B. welding

C. forging

D. joining

key: A

type: single-choice question

76.The reactor vessel is a large ( ), steel made container.

A. safety

B. movable

C. cylindrical

D. long

key: C

type: single-choice question

77.The reactor vessel consists of ( )

A. a vessel flange

B. shell sections

C. a bottom head

D. reactor vessel internal

key: A,B,C

type: multiple-choice question

78.The core support barrel assembly consists of : ( )

A. a vessel flange

B. lower support structure

C. core shroud

D. core support barrel

key: B,C,D

type: multiple-choice question

79.在通常的压水堆中,堆芯采用轻水作慢化剂和冷却剂。堆芯放置在巨大的压力容器中,压力容器的顶盖可拆卸。

key: In the most common type of pressurized water reactor, the light water-moderated and cooled core is contained within a large pressure vessel with a removable head. type: translation

Lesson 12 Reactor Core and Fuel

80.After long time radiation, the boron carbide will decrease in mass. ()

key:×

type: judgment question

81.The fuel assemblies used in a reactor are same. ( ) key:√

type: judgment question

82.The fuel rod provides three barriers to the escape of fission products.

key:×

type: judgment question

83.The heat is transferred by the reactor coolant from the core to the ( ).

A. second loop

B. outlet nozzles

C. steam generators

D. pressurizer

key: C

type: single-choice question 84.The helium inside the fuel cladding improves the ( ).

A. characteristics

B. gap heat conductivity

C. gap heat convection

D. clad strain

key: D

type: single-choice question

85.The fuel spacer grids are made of ( ).

A. stiff arches

B. springs

C. plates

D. zircaloy strips

key: D

type: single-choice question

86.In the fuel rod the spring is set on the ( ).

A. pellet column

B. spacer disc

C. end cap

D. top

key: B

type: single-choice question

87.Each fuel rod consists of UO2 pellets , ( )

A. a helical spring

B. a guide tube

C. a cladding tube

D. upper and lower spacer disc s key: A,C,D

type: multiple-choice question

88.堆芯活性区的所有结构材料,包括控制棒导向管和定位格架,都是锆-4合金,这种材料可以减小对堆芯燃料富集度的要求。

key: All of the structural materials in active core zone, including the CEA guide tubes and spacer grids, are Zircaloy, which minimizes the enriched uranium requirement of the core.

type: translation

89.The fuel assembly lower end fittings contain coolant flow holes. Alignment of the lower end and support of the assembly is provided by the core support structure. Lateral location of upper end of each fuel assembly is provided by the lower ends of the control element shroud tubes which extend downward from the alignment plate which is part of the guide structure above the core. Fuel assembly positioning is accomplished by the control element shroud tube extensions into which the fuel assembly extension is guided.

keys: 燃料组件的下管座上有冷却剂流水孔,燃料组件下端的连接和支撑由堆芯支持结构提供。每个燃料组件上端的横向连接由控制棒导向筒的下端提供,燃料组件沿着控制棒导向筒所指引的方向伸出,这样就使燃料元件得到定位。type: translation

90.Each fuel rod consists of slightly enriched dish-ended UO2 pellets, upper and lower spacer discs, a cladding tube, upper and lower end caps, and a helical spring.

keys: 每个燃料棒由带有碟型凹窝的浓缩二氧化铀芯块、上下各热点片、包壳管、上下端塞和螺旋弹簧组成。

5

type: translation

Lesson 13 The Main Components in PWR Coolant

System

91.There are two steam generators in each primary loop. ()

key:×

type: judgment question

92.The fluid from economizer section is two-phase flow. ( ) key:×

type: judgment question

93.In accordance with the coolant temperature program, the average reactor coolant temperature is ( ) when

steam demand is increased.

A. constant

B. fall

C. raised

D. high

key: C

type: single-choice question

94.In the down comer, the water is ( ).

A. saturated

B. boiling

C. very cold

D. subcooled

key: D

type: single-choice question

95.The flywheel on the motor is to provide ( ).

A. energy

B. water

C. coastdown flow

D. torque

key: C

type: single-choice question

96.The temperature of the water in the seal assembly is maintained within acceptable limits by ( ).

A. wate r

B. oil

C. steam

D. water and oil

key: A

type: single-choice question

97.A low-low pressurizer water level signal deenergizes ( ) before they are uncovered to prevent heater damage.

A. the all heaters connected to on-off controllers

B. some of the heaters connected to on-off controllers

C. the all heaters connected to proportional controllers

D. some of the heaters connected to proportional controllers key: A,C

type: multiple-choice question

Lesson 14 Pressurized Water Reactor Systems and

Containment

98.The sodium hydroxide additive is provided to reduce vapor. ()

key:×

type: judgment question

99.The hot primary fluid exchanges its heat with the secondary fluid in the pressurizer. ( )

key:×

type: judgment question 100.The thermal efficiency of PWRs is ( ).

A. more than 40%

B. about 30%

C. less than 10%

D. about 70%

key: B

type: single-choice question

101. ( ) pressurizer heaters are connected to proportional controllers.

A. A few

B. The remaining

C. Most of the

D. Many

key: D

type: single-choice question

102.The amount of heat that has been converted in steam turbine is ( ) that removed in condenser.

A. more than

B. less than

C. same as

D. similar to

key: B

type: single-choice question

103.The space between the reactor vessel and the core barrel is the ( ).

A. fuel rods

B. control rods

C. down comer

D. plenum

key: C

type: single-choice question

Lesson 15 The Steam Turbine

104.In the reaction stage, steam expansion occurs in nozzles. ()

key:×

type: judgment question

105.The steam engine was applied earlier than that of steam turbine. ( )

key:√

type: judgment question

106.Steam turbine can rotate in ( ).

A. one direction

B. two directions

C. very low speed

D. many directions

key: B

type: single-choice question

107.In the last stage of a turbine the degree of reaction ( ).

A. is a constant

B. is little

C. is even

D. increases from root to tip

key: D

type: single-choice question

108.If tube leaks were present ( ) the accident, some radioactivity accumulated in the shell side would be discharged through the safety valves.

A. prior to

B. after

C. in

D. during

key: A

type: single-choice question

6

109.Higher initial steam temperatures reduce the ( ).

A. efficiency of turbine

B. turning speed of the turbine

C. moisture of the finial stages of the turbine

D. turbine stages

key: C

type: single-choice question

110.On leaving the final turbine stage, the steam has to ( ).

A. be condensed

B. work

C. be pumped to boiler

D. be free

key: A

type: single-choice question

Lesson 16 Main Steam, Feed and Condensate Systems 111.The air in the condenser is removed by fan. ()key:×

type: judgment question

112.To allow plant maintenance, valves are provided around feed heaters. ( )

key:×

type: judgment question

113.Auxiliary feed water pump is driven by ( ).

A. electricity

B. main steam

C. turbine

D. motor

key: C

type: single-choice question

114.The pressures of steam generators are ( ) under all operating conditions.

A. different

B. equal

C. maintained

D. changed

key: B

type: single-choice question

Lesson 17 Operation of a Nuclear Power Plant 115.The long-term control of core reactivity means adjustment of boric acid. ()

key: √

type: judgment question

116.An excess of coolant inventory can result in a temperature increase.

key: ×

type: judgment question

117.When large decrease in turbine load the steam from the steam generators is sent to the ( ).

A. steam condenser

B. atmosphere

C. steam dump system

D. heat exchanger

key: C

type: single-choice question

Lesson 19 Nuclear Safety

118.In terms of inherent safety the fast reactors are more hazardous than thermal reactor. ( )

key:√

type: judgment question

119.If a significant amount of reactivity is added to a reactor core it means a(n) ( ).

A. LOCA

B. APS

C. ECCS

D. RIA

key: D

type: single-choice question

120.During the accident the hydrogen come from the ( ).

A. reactor

B. coolant

C. fuel

D. zirconium-steam reaction

key: D

type: single-choice question

121.The term anticipated transient without scram (ATWS) is used in water-cooled reactor systems to refer to event which would follow a ‘routine’ plant failure, a turbine trip or a feedwater pump trip when the reactor trip systems fail to insert the control rods into the core.

keys: 未能紧急停堆的预计瞬变指的是水冷堆中,反应堆停堆系统在汽轮机停转、给水泵停止运行的情况下未能使控制棒插入堆芯这样的一系列电站事故所导致的事故。

type: translation

7

会计专业英语模拟试题及答案

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