【資料名稱】：TD-SCDMA工程試題

【資料作者】：1234

【資料日期】：2011-6-1

【資料語言】：中文

【資料格式】：DOC

【資料目錄和簡介】：

TD-SCDMA工程試題(單選題101道)TD-SCDMA Engineering (101 Single Choice Questions)

I工程勘查Engineering Survey
1.下敘述中不是工程勘察的主要目的的是（ C ）。 Which statement does not describe the purpose of the engineering survey (C).
為排產(chǎn)發(fā)貨提供可靠的數(shù)據(jù)依據(jù)Provide reliable data for production and delivery
提供工程設(shè)計的依據(jù)Provide the standard for engineering design
進行網(wǎng)絡(luò)規(guī)劃Perform network planning
為生產(chǎn)線數(shù)據(jù)配置、調(diào)試的原始依據(jù)Provide original standard for data configuration and debugging of the production line
2.當天面有其他設(shè)備的天線時，需要紀錄的是其它設(shè)備天線的（ B ）。When there is an antenna of other devices, record __B__ of the antenna.
天線生產(chǎn)廠家 Manufacturer of antenna
頻點、發(fā)射功率、是否滿足隔離度要求Whether frequency point and transmitting power can meet the isolation requirement.
設(shè)備類型Equipment type
天線的型號、發(fā)射功率、增益等參數(shù)Antenna model, transmitting power, and gain
3.走線原則描述不正確的是（ C ）。 Which statement of the feeder distribution is incorrect?
線纜盡量短Cable should be as short as possible
走線方便Cabling should be convenient
盡量不要與其他設(shè)備饋線一起走線 The feeder should not be distributed together with feeder of other devices.
注意不要影響建筑物美觀Do not affect the nice outlook of the building
4.站點天面要求有防雷接地地網(wǎng)，采用聯(lián)合接地方式時，防雷接地電阻不大于（ B ）。When there is the lightning grounding network on the roof, the joint grounding mode is used. The lightning grounding resistance should not be greater than (B).
A.1Ω
B.5Ω
C.10Ω
D.15Ω
用鐵塔方式安裝天線時，需要安裝鐵塔。鐵塔一般由用戶提供，鐵塔的設(shè)計和安裝必須滿足通訊系統(tǒng)相關(guān)規(guī)范的要求，一般要求能夠承受的風速要求是（ A ）A tower should be constructed if an antenna is installed on the tower. The tower is provided by the customer. The design and installation of the tower should meet the communication specifications. Generally, the tower should withstand the wind speed ( A ).
160KM/H；
180KM/H；
200KM/H；
220KM/H
6.在采用報桿方式安裝天線時，以下關(guān)于報桿說法不對的是（ D ）Which statement about the antenna installation on a pole is incorrect (D).
抱桿的高度應(yīng)滿足網(wǎng)絡(luò)規(guī)劃的要求；The height of pole should meet the network planning requirement.
抱桿的的直徑應(yīng)在60mm以上；The diameter of the pole should be greater than 60 mm.
勘察時須考慮抱桿的接地線長度和規(guī)格；Consider the length and specifications of grounding line for the pole
報桿必須位于天面現(xiàn)有避雷針的保護范圍以內(nèi) Pole should be within the protection range of the arrester.
7.以下對TMB目前的安裝方式描述正確的是（ A ）Which statement about the TMB installation is correct (A).
抱桿安裝和靠墻安裝Installation on a pole or mounted against a wall
抱桿安裝和水平安裝Installation on a pole or horizontal installation
鐵塔安裝或水平安裝Installation on a tower or horizontal installation
可以任意安裝在安全牢固的位置，并注意防水處理It can be installed in any safe position. The waterproof should be processed.
8.TD系統(tǒng)要求主饋線上的信號衰減必須低于以下哪個值（ C ）The signal attenuation of the main feeder of the TD-SCDMA system must be smaller than ( C)
A.10dB；
B.15dB；
C.20dB；
D.25dB
9.塔頂跳線的默認配置長度為 （ D ）The default length of the tower jumper is (D).
A1m
B2m
C3m
D5m
10.目前TMB和OLPM安裝套件所支持的抱桿直徑最大為 （ C ）The diameter of the pole supported by TMB and OLPM installation suite is (C)
A40mm
B60mm
C70mm；
D100mm
11.以下對主饋線接地描述不正確的是 （ B ） Which statement about the grounding of the main feeder is incorrect? (B)
A30m以下長度的主饋線采用室外兩點接地；The main feeder less than 30m adopts outdoor two-point grounding mode.
B30m以下長度的主饋線采用室外三點接地；The main feeder less than 30m adopts outdoor three-point grounding mode.
C30m以上的主饋線采用室外每隔20m設(shè)計一個接地點； The main feeder more than 30m is designed with a grounding point every 20m outdoors.
D接地卡的接地可以采用就近接地原則，就近與走線架或鐵塔塔身連接The nearby grounding mode is used for the grounding card, that is, connect to the cabling rack or tower as close as possible.
12.OLPM采用的防雷接地線規(guī)格是 （ B ）The lightning protection grounding specification of the OLPS is (B)
A10mm²
B16mm²
C25mm²
D35mm²
13.以下對ZXTR-B30天饋系統(tǒng)從LPM到直接連接到OLPM或TMB的線纜描述正確的是 （ D ）Which statement of the connection from ZXTR-B30 antenna feeder system, to LPM, and then to OLPM or TMB is correct?
A8根饋線、兩對電源線、一根控制電纜；Eight feeders, two pairs of power cables, and one control cable
B9根饋線、兩對電源線、一根控制電纜；Nine feeders, two pairs of power cables, and one control cable
C8根饋線、一對電源線、兩根控制電纜； Eight feeders, one pair of power cable, and two control cables
D9根饋線、一對電源線、一根控制電纜Nine feeders, one pair of power cable, and one control cable
14.目前中興公司采用的安德魯ACT020-05008-7N Prelim 8陣元全向天線陣的外形尺寸和重量為（ A ）Dimensions and weight of Andrew ACT020-05008-7N Prelim 8 omni-directional array used by ZTE are:
A外形尺寸892mm*292mm，重量10.7kg Dimensions: 892mm*292mm，Weight: 10.7kg
B外形尺寸920mm*292mm，重量7.7kg Dimensions: 920mm*292mm，Weight: 7.7kg
C外形尺寸892mm*292mm，重量7.7kgDimensions: 892mm*292mm，Weight: 7.7kg
D外形尺寸892mm*392mm，重量10.7kgDimensions: 892mm*392mm，Weight: 10.7kg
15.目前中興公司采用的安德魯APT020-10512-0N Prelim 8陣元定向天線陣的外形尺寸和重量為（ B ）Dimensions and weight of Andrew APT020-10512-0N Prelim 8 omni-directional array used by ZTE are:
A外形尺寸1200mm*680mm*80mm，重量10kg Dimensions: 1200mm*680mm*80mm，Weight: 10kg
B外形尺寸1400mm*680mm*80mm，重量10kg Dimensions: 1400mm*680mm*80mm，Weight: 10kg
C外形尺寸1200mm*680mm*80mm，重量15kg Dimensions: 1200mm*680mm*80mm，Weight: 15kg
D外形尺寸1400mm*680mm*80mm，重量15kgDimensions: 1400mm*680mm*80mm，Weight: 15kg
16.以下對TMB的外形尺寸和重量描述正確的是（ B ）Which statement about the TMB dimensions and weight is correct? (B)
A外形尺寸450mm*420mm*228mm，重量30kg Dimensions: 450mm*420mm*228mm，Weight: 30kg；
B外形尺寸450mm*420mm*228mm，重量25kg Dimensions: 450mm*420mm*228mm，Weight: 25kg；
C外形尺寸450mm*420mm*228mm，重量20kg Dimensions: 450mm*420mm*228mm，Weight: 20kg；
D外形尺寸450mm*420mm*228mm，重量15kgDimensions: 450mm*420mm*228mm，Weight: 15kg
17.以下哪個選項中的內(nèi)容都是工程勘察中必須確定的信息（ B ）Which information should be determined in the engineering survey? (B)
A天面的空間、天面的承重、施工必須采取的安全措施；Roof space, roof bearing capacity, and safety measures in the construction
B上天面方式、抱桿的安裝方式、天面最大風速；Roof mode, pole installation mode, and roof maximum wind rate
C天面的高度、鐵塔安裝方式、鐵塔的建設(shè)單位； Roof height, tower installation mode, and tower construction company
D天面的氣候情況、電磁環(huán)境、該站點現(xiàn)網(wǎng)設(shè)備的生產(chǎn)廠家和型號Roof weather, electromagnetic environment, and manufacturer and model of the current network equipment
18.以下關(guān)于室外接地勘查的描述不正確的是（ C ）Which statement about the outdoor grounding survey is incorrect? ( C)
A避雷器匯流條到室外接地排的接地線，采用25 mm2 的多股軟銅線，勘察重點是線纜的長度； The grounding cable from the arrester busbar to the grounding cable of the grounding bar uses the 25 mm2 multi-core soft copper line. The cable length should be surveyed.
B主饋線接地卡的接地線采用就近接地原則，直接和鐵塔或室外走線架連接；The nearby grounding mode is used for the grounding card of the main feeder, that is, connect to the outdoor cabling rack or tower as close as possible.
C如果由中興通訊提供抱桿（國外有可能，國內(nèi)一般不提供），采用40×4 mm 的鍍鋅扁鋼或35mm²多股軟銅線接地，勘察重點是線纜的長度。一個站點可能會有多個抱桿，線纜長度是總長度。接地原則是就近接地； If ZTE provides a pole (it is applicable to oversea market only), the grounding adopts 40×4 mm zinc-coated flat steel or 35mm² multi-core soft copper cable. The cable length should be surveyed. A site may have multiple poles. The cable length refers to the total length. The grounding principle is as close as possible.
D如果由中興通訊提供室外接地排，室外接地排到機房接地體的接地引下線采用95 mm2的多股軟銅線，也可以采用40×4mm的鍍鋅扁鋼，勘察重點是線纜的長度If ZTE provides the outdoor grounding bar, 95 mm2 multi-core soft copper cable or 40×4mm zinc-coated flat steel is used between the outdoor grounding bar and the down lead of the grounding body in equipment room. The cable length should be surveyed.
19.移動通信基站應(yīng)按 、 的原理，將工作地、保護地和防雷地組成一個聯(lián)合接地網(wǎng)（A）：The mobile communication NodeB shall constitute a joint grounding network with the combination of the working ground, protection ground, and lightning protection ground according to ______, _______ principle. (A)
A.均壓、等電位Equalized voltage, equalized electric potential
B.高壓、低電位High voltage, low electric potential
C.低壓、低電位Low voltage, low electric potential
D.低壓，高電位Low voltage, high electric potential
20.走線架長度超過米時，應(yīng)每隔米地面支撐或者吊頂懸掛一次（B）：When the length of the cabling rack is greater than______ meter, support it or hang it through ceiling every ________ meter. ( B)
A.3，4
B.4，3
C.5，4
D.6，4
21.ZXTR RNC設(shè)備機柜的尺寸為（ A ）The dimension of the ZXTR RNC equipment cabinet is (A)
A.2000mm×600mm×800mm（高×寬×深）（Height×Width×Depth）
B.1800mm×810mm×600mm（高×寬×深）（Height×Width×Depth）
C.1200mm×600mm×600mm（高×寬×深）（Height×Width×Depth）
D.1600mm×600mm×650mm（高×寬×深）（Height×Width×Depth）
22.進行電纜勘查時需要勘察E1傳輸?shù)淖杩�，目前ZXTR RNC設(shè)備支持：(D)In the case of the cable survey, the E1 transmission impedance should be surveyed. At present, the ZXTR RNC supports (D)
A50歐和120歐兩種方式50 ohm and 120 ohm
B120歐、50歐和75歐三種方式120 ohm, 50 ohm, and 75 ohm
C50歐和75歐兩種方式50 ohm and 75 ohm
D75歐和120歐兩種方式 75 ohm and 120 ohm
23.ZXTR RNC單機架滿配置功耗為：（B）The power consumption of full configuration of the ZXTR RNC single rack is (B)
A1600W
B3500W
C1500W
D1350W
24.ZXTR RNC和ZXTR B30 設(shè)備 直流電源允許的最大波動范圍為： （D）The maximum allowed fluctuation range of DC power of ZXTR RNC and ZXTR B30 is (D)
A-52V~ -40V
B-48V~ -24V
C-52V~ -24V
D-57V~ -40V
25.機房基本信息勘查，下列描述正確的是：（D）Which statement of the survey of equipment room basic information is correct? (D)
A.機房的具體位置、機房所屬物主、機房建設(shè)時間 Equipment room position, property owner of equipment room, and equipment room construction time
B.機房的具體位置、機房類型、機房所述物主、Equipment room position, equipment room type, and property owner of equipment room
C.機房的具體位置、設(shè)備進入機房的路由、機房所屬物主、機房建設(shè)時間Equipment room position, route from equipment to the room, property owner of equipment room, and the equipment room construction time
D.機房的具體位置、機房類型、設(shè)備進入機房的路由、設(shè)備卸貨位置Equipment room position, equipment room type, route from equipment to the room, and equipment unloading position
26.機房環(huán)境要求的交流電源波動范圍是：（C）The AC power fluctuation range of equipment room environment is ( C)
A.三相電源380V±10%、單相電源 220V±10%、直流電源－40～－48V Three-phase power 380V±10%、single-phase power 220V±10%、DC power －40～－48V
B.三相電源380V±15%、單相電源 220V±15%、直流電源－40～－48V Three-phase power 380V±15%、single-phase power 220V±15%、DC power －40～－48V
C.三相電源380V±10%、單相電源 220V±10%、直流電源－40～－57V Three-phase power 380V±10%、single-phase power 220V±10%、DC power －40～－57V
D.三相電源380V±15%、單相電源 220V±15%、直流電源－40～－57V Three-phase power 380V±15%、single-phase power 220V±15%、DC power －40～－57V
II工程安裝Engineering Installation
1.D天饋系統(tǒng)中，進入OLPM內(nèi)部的信號線（與LPM相連）與接線端子的連接關(guān)系是：標識為485－11的接線端子應(yīng)與（A ）相連，標識為485－12的接線端子應(yīng)與（A）相連，標識為485－21的接線端子應(yīng)與（A ）相連，標識為485－22的接線端子應(yīng)與（A）相連，標識為485－31的接線端子應(yīng)與（A ）相連，標識為485－32的接線端子應(yīng)與（ A）相連。In D antenna feeder system, the connection between internal signal line of the OLPM (connected to the LPM) and the connection terminal is: The connection terminal labeled with 485-11 should be connected to ( A), the connection terminal labeled with 485-12 should be connected to ( A), the connection terminal labeled with 485-21 should be connected to ( A), the connection terminal labeled with 485-22 should be connected to ( A), the connection terminal labeled with 485-31 should be connected to ( A), and the connection terminal labeled with 485-32 should be connected to ( A).
A.藍白線，藍線，綠線，綠白線，橙白線，橙線；Blue-white, blue, green, green-white, orange-white, and orange
B.藍白線，藍線，綠白線，綠線，橙白線，橙線；Blue-white, blue, green-white, green, orange-white, and orange
C.藍線，藍白線，綠線，綠白線，橙線，橙白線；Blue, blue-white, green, green-white, orange, and orange-white
D.藍線，藍白線，橙線，橙白線，綠線，綠白線；Blue, blue-white, orange, orange-white, green, and green-white
2.在TD系統(tǒng)中，安裝TMB所必須的工具（D ）In the TD-SCDMA system, the tools used for installing TMB include (D)
A.內(nèi)六角扳手、老虎鉗Hexagon socket screw keys, pliers
B.活動扳手、十字螺絲刀、一字螺絲刀、老虎鉗；Adjustable spanner, cross screw-driver, flathead screwdriver, pliers
C.十字螺絲刀、一字螺絲刀；Cross screw-driver, flathead screwdriver
D.內(nèi)六角扳手、活動扳手、十字螺絲刀、一字螺絲刀；Hexagon socket screw keys, adjustable spanner, cross screw-driver, flathead screwdriver
3.在TD系統(tǒng)中，TMB的作用是（B）In the TD-SCDMA system, the functions of the TMB include (B)
A.只放大下行發(fā)射信號，收發(fā)切換控制，功率溫度檢測，帶外射頻信號抑制，低溫加熱啟動。Only amplify the downlink transmitting signal, receive/transmit switching control, power and temperature detection, outband RF signal suppression, low temperature heating start
B.放大上下行發(fā)射信號，收發(fā)切換控制，功率溫度檢測，帶外射頻信號抑制，低溫加熱啟動。Amplify the uplink/downlink transmitting signal, receive/transmit switching control, power and temperature detection, outband RF signal suppression, low temperature heating start
C.放大上下行發(fā)射信號，收發(fā)切換控制，功率溫度檢測。Amplify the uplink/downlink transmitting signal, receive/transmit switching control, power and temperature detection,
D.只放大上行發(fā)射信號，收發(fā)切換控制，功率溫度檢測，帶外射頻信號抑制。Only amplify the uplink transmitting signal, receive/transmit switching, power and temperature detection, and outband RF signal suppression
4.在TD系統(tǒng)中，目前中興公司使用的天線的頻段是（ B）In the TD-SCDMA system, the antenna band used by the ZTE is (B)
A1880—1920MHz；
B2010—2025MHz；
C2300—2400MHz；
D以上都可All of the above
5.在TD系統(tǒng)中，按照工程規(guī)范，下面（ D ）說法是正確的。In the TD-SCDMA system, which statement about the engineering specification is correct? ( D )
A如果基站設(shè)備安裝在機房內(nèi)，在饋線進入機房時，沒必要安裝饋線窗。If the BTS device is installed in the equipment room, the feeder window is not required for the feeder cable entering the equipment room.
B通常將GPS天線沒有必要安裝在鐵塔45°避雷區(qū)域內(nèi)。Generally, it is not necessary to install the GPS antenna in the 45° lightning arrester area of the iron tower.
C室內(nèi)接地和室外接地，可接在一起。The indoor and outdoor ground cables can be connected together
D以上都不對。All of the above
6.在TD系統(tǒng)中，按照工程規(guī)范，對于饋線，一次性彎曲，彎曲半徑最小為（A）；反復(fù)彎曲彎曲半徑最小為（ A ）；最少可彎曲（A ），標稱為（A）.
A90 mm，200 mm，15 times，50 times；
B110 mm，250 mm，15 times，80 times；
C80 mm，180 mm，15 times，50 times；
D110 mm，200 mm，20 times，50 times；
7.在TD系統(tǒng)中，按照工程規(guī)范，一個提升網(wǎng)（HOISTING GRIP）最大提吊饋纜長度為（ C ）In the TD-SCDMA system, the maximum feeder length of a hoisting GRIP is (C)
A40 m
B50 m
C60 m
D70 m
8.在TD系統(tǒng)中，GPS的作用是（D）In the TD-SCDMA system, the function of the GPS is (D)
A提供NODE－B時鐘基準；Provide the NodeB clock reference
B提供NODE－B頻率基準；Provide the NodeB frequency reference
C提供NODE－B地理位置信息、時鐘基準、頻率基準；Provide NodeB geographic position information, clock reference, frequency reference
D提供NODE－B時鐘基準、頻率基準Provide NodeB clock reference and frequency reference
9.在TD系統(tǒng)中，OLPM的作用是（ D）In the TD-SCDMA system, the function of the OLPM is (D)
A－48V電源防雷Lightning protection of -48V power
B－48V電源防雷、485通訊線防雷Lightning protection of -48V power and 485 communication line
C485通訊和485控制線防雷；Lightning protection of 485 communication and 485 control lines
D－48V電源防雷、485通訊線防雷和485控制線防雷。Lightning protection of -48V power, 485 communication line, and 485 control line
10.在TD系統(tǒng)中，TMB和天線之間的跳線連接方式是（B ）。In the TD-SCDMA system, the jumper connection between the TMB and the antenna is (B)
A此跳線一端和TMB上標識為BS的接頭相連，另一端和天線相連；One end of the jumper is connected to the connector of the TMB labeled with BS, and the other end is connected to the antenna
B此跳線一端和TMB上標識為ANT的接頭相連，另一端和天線相連； One end of the jumper is connected to the connector of the TMB labeled with ANT, and the other end is connected to the antenna
CA和B都可以Either A or B
DA和B都不可以Neither A or B
11在TD系統(tǒng)中，安裝全向天線時，天線軸線應(yīng)和水平面垂直的誤差小于（A）。In the TD-SCDMA system, the vertical error between the antenna axis and the horizontal plane should be less than (A) in the case of installation of the omni-directional antenna.
A±1°
B±2°
C±0 .5°
D±1 .5°
12.在TD系統(tǒng)中，在鐵塔平臺上安裝抱桿時，抱桿與鐵塔平臺的最小距離是（B）。In the TD-SCDMA system, the minimum distance between the pole and tower platform is (B) when a pole is installed on the tower platform
A1 m
B1.5 m
C2 m
D0.5 m
13.TD室外天饋系統(tǒng)的接地電阻最大不能超過（B）。The grounding resistance of TD-SCDMA outdoor antenna feeder system should not be greater than (B )
A.5 ohm
B.10 ohm
C.1 ohm
D.50 ohm
14.在RNC安裝驗收中,下面哪個驗收項目不屬于RNC的驗收項目( D )In the RNC installation acceptance, which item does not belong to the RNC acceptance items (D).
A走線架安裝工藝Cabling rack installation
B機柜安裝工藝Cabinet installation
C電纜布放工藝Cable distribution
D天饋安裝工藝Antenna feeder installation
15.下列電源線安裝哪種安裝方法不正確( D ) Which statement about the installation of the power cable is incorrect? (D)
A一次電源接到機架電源端子，正負極連接正確The negative and positive lines are connected correctly when the primary power is connected to the rack power terminal.
B電源線規(guī)格符合設(shè)計要求，布放平直，連接良好The specification of the power cable complies with the design. The cable distribution should be smooth. The connection should be correct.
C電源線開口鼻的焊接或壓接牢固、端正The welding or crimping of lifting lug of the power cable should be fastened.
D電源線可采用幾段的線料，但必須在中間接頭
16.在RNC安裝工程中,下列哪種安裝不正確( C )Which statement about the RNC installation is incorrect?
A走線架平直，無明顯扭曲和歪斜The cabling rack should well placed.
B各種標志正確、清晰、齊全Labels are correct, clear, and complete.
C接地母線固定在走線架上，存在在空中飛線The grounding bus is fixed on the cabling rack. There is a jumper.
D布放槽道電纜時電纜不溢出槽道The cable should not be overflowed in the case of cable distribution in the trough
17.電纜安裝布放應(yīng)該 ( A ) The cable should be distributed in the mode (A)
A電纜必須綁扎，綁扎后的電纜應(yīng)互相緊密靠攏，外觀平直整齊 Cables should be bundled straightly.
B電纜可不必綁扎,直接拉直即可Cables need not to be bundled. They should be straight.
C電纜線與信號線可重疊布放,Power cables and signal lines can be distributed together.
D都不正確 None
18.光纖布放時應(yīng)該 ( A )The fiber distribution is (A )
A光纖跳線在機架內(nèi)綁扎工藝良好無擠壓感，兩端不能拉得太緊The fiber jumper should be well bundled in the rack, without being tightened too much at too ends
B光纖使用扎帶幫扎Fiber is bundled with cable ties
C光纖跳線安裝時線纜應(yīng)該拉直,平放The fiber jumper should be straight
D都不正確 None
19.RNC機柜加電過程下列哪種順序正確 ( A )The sequence of RNC cabinet power-on procedure is (A)
A萬用表檢測電壓,機架上電,機框上電Use the multi-meter to detect the voltage, power on the rack, and power the shelf
B機架上電,萬用表檢測電壓,機框上電Power on rack, use a multi-meter to detect the voltage, and power on the shelf
C機框上電,機架上電,萬用表檢測電壓Power on the shelf, power on the rack, and use a multi-meter to detect the voltage
D萬用表檢測電壓,機框上電,機架上電Use a multi-meter to detect the voltage, power the shelf, and power on the rack
20.RNC室內(nèi)聯(lián)合接地電阻 ( A )The RNC indoor joint grounding resistance is (A )
A小于1 歐Smaller than 1 ohm
B小于2歐Smaller than 2 ohm
C小于3歐Smaller than 3 ohm
D小于5歐Smaller than 5 ohm
21.RNC機柜可由幾路供電 ( B )The RNC cabinet can provide ____for the power supply (B)
A1 channel
B2 channel
C3 channel
D4 channel
22.RNC機柜安裝時水平方向的偏差一般允許 ( A )In the installation of the RNC cabinet, the horizontal error ________ is allowed.(A)
A水平方向偏差不應(yīng)大于機架高度的1‰The horizontal error should not be greater than 1‰ of the rack height
B水平方向偏差不應(yīng)大于機架高度的3‰The horizontal error should not be greater than 3‰ of the rack height
C水平方向偏差不應(yīng)大于機架高度的5‰The horizontal error should not be greater than 5‰ of the rack height
D水平方向偏差不應(yīng)大于機架高度的10‰The horizontal error should not be greater than 10‰ of the rack height
23.RNC電源線纜超過100米將使用多大橫截面的線纜( C )When the RNC power cable is longer than 100 m, the cross-sectional area of the cable is _____ ( C )
A15 mm2
B25 mm2
C35 mm2
D30 mm2
24.走線架安裝下列說法哪個正確 ( A )Which statement of the installation of the cabling rack is correct? ( A )
A走線架均敷設(shè)接地線 The cabling rack is distributed with grounding cable
B走線架的寬度為300mm~800mmThe width of the cabling rack is 300mm~800mm
C走線架平直，但在實際中可以存在扭曲和歪斜The cabling rack should be straight. The skew is allowed in the actual application.
D安裝走線架的位置、高度可任意決定The position and height for the installation of the cabling rack can be determined arbitrarily.
25.接地母線的一個接地點可接幾個設(shè)備( A ) How many devices can be connected to one device point of the grounding bus? (A)
A1
B2
C3
D4
26.接地母線應(yīng)該接在 ( A )The grounding bus should be connected to (A).
A接地排Grounding bar
B配電箱Power distribution box
C供電柜Power distribution frame
D設(shè)備Equipment
27.ZXTR RNC設(shè)備機柜的高度是（ A ）The height of the ZXTR RNC equipment cabinet is (A)
A2000mm
B2200mm
C1600mm
D1800mm
28.主機柜安裝好，上電后，機柜內(nèi)部各模塊的上電順序是（A）After the main cabinet is installed and is powered, the power-on sequence of other modules in the cabinet is ( A )
AFANTCR/EMU TFRSDHTMB
BFAN TCR/EMU TFRSDH TMB
CFAN TFRSDHTMB TCR/EMU
DFAN TCR/EMU TFRTMBSDH
29.對于S 3/3/3三小區(qū)定向基站，機柜頂部有多少根天線主饋線+校準饋線（A）For S 3/3/3 three-cell directional NodeB, there are _____antenna main feeder + calibration feeders on the top of the cabinet.
A24+3
B8+1
C24+1
D8+3
30.NODE B采用光纖到柜的傳輸時，BII單板上光纖接口類型是：(D)When the NodeB adopts the transmission from the optical fiber to the cabinet, the fiber interface type of the BII board is (D)
ABNC
BLC
CFC
DSC
31.RNC采用光纖到柜的傳輸時，APBE單板上光纖接口類型是：(B)When the RNC adopts the transmission from the optical fiber to the cabinet, the fiber interface type of the APBE board is (B)
ABNC
BLC
CFC
DSC
32.NODE B機柜頂部2M傳輸電路輸入的接頭類型是：( C)The connector type of 2M transmission circuit input on the top of the cabinet in the NodeB is ( C )
ABNC
BL9
CCC4Y
DSC
33.TMB控制線的信號輸入線纜在經(jīng)過LPM輸入端是的接頭類型是：(C)The connector type from the signal input cable of the TMB control line to the LPM input end is (C)
AL9
BN-J
CDB9
DSC