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20xx年電大建筑專業(yè)-建筑測(cè)量試題小抄-預(yù)覽頁(yè)

 

【正文】 位于同一鉛垂線上 5.當(dāng)豎盤讀數(shù)為:81176。 B.1/3500 7.導(dǎo)線角度閉合差的調(diào)整方法是將閉合差反符號(hào)后(C )。D.距離交會(huì)二、多項(xiàng)選擇題1.測(cè)量的基本工作有(ABC )。A.高差 B.高程C.水平距離 D.高差與平距E.水平角5.附合導(dǎo)線坐標(biāo)計(jì)算與閉合導(dǎo)線坐標(biāo)計(jì)算不同點(diǎn)是(AD)。(√ )4.在水準(zhǔn)測(cè)量中轉(zhuǎn)點(diǎn)的作用是傳遞距離。( )8.坡線是垂直于等高線的短線,用以指示坡度上升方向。表1:觀測(cè)次數(shù)觀測(cè)值LV″2分VV2分182176?!?82176。19′12″+981682176。已知:a1=90 176。00162。 178。一測(cè)回角值176。00 162。 11 178。其限度為:(1)在半徑為10km的測(cè)區(qū)范圍內(nèi)進(jìn)行距離測(cè)量時(shí),可以用水平面面代替水準(zhǔn)面,不考慮地球曲率對(duì)距離的影響;(2)地球曲率對(duì)高程測(cè)量的影響很大。點(diǎn)狀地物一般選擇其中心位置,線狀地物一般選擇其起、止點(diǎn)或轉(zhuǎn)折點(diǎn)和彎曲點(diǎn)。相鄰圖幅拼接時(shí),用一透明紙蒙在左圖幅的接邊上,用鉛筆把其圖廓線、坐標(biāo)格網(wǎng)線、地物、地貌繪在透明紙上,然后再將透明紙按相同圖廓線、坐標(biāo)格網(wǎng)線蒙在右圖幅邊上,用同樣鉛筆描繪地物和地貌,取其平均位置作為最后相鄰圖幅的地物和地貌。②實(shí)地檢查是在室內(nèi)檢查的基礎(chǔ)上進(jìn)行實(shí)地巡視檢查和儀器檢查。整飾的順序是先圖內(nèi)后圖外,先地物后地貌,先注記后符號(hào)。這些控制點(diǎn)精度高,均勻分布整個(gè)測(cè)區(qū)。2. 1:5000地形圖的比例尺精度是(D)。D 南西40176。B 經(jīng)緯度8. 危險(xiǎn)圓出現(xiàn)在(A)中。13.下面關(guān)于鉛垂線的敘述正確的是(A)。25 測(cè)量誤差按其對(duì)測(cè)量結(jié)果的影響性質(zhì),可分為系統(tǒng)誤差和__偶然誤差26 地物注記的形式有文字注記、_數(shù)字注記_和符號(hào)注記三種。28 經(jīng)緯儀安置通常包括整平和對(duì)中。32.中誤差:是一個(gè)描述測(cè)量精度的指標(biāo),指的是在相同觀測(cè)條件下對(duì)同一未知量進(jìn)行n 次觀測(cè),所得各個(gè)真誤差平方和的平均值,再取其平方根,稱為中誤差。意義在于:保證全國(guó)統(tǒng)一坐標(biāo)系統(tǒng)和高程系統(tǒng);使地形圖可以分幅測(cè)繪,減少誤差積累,保證測(cè)量成果精度。 37.要從地形圖中獲取某兩點(diǎn)A、B構(gòu)成的直線的坐標(biāo)方位角,簡(jiǎn)述可以實(shí)現(xiàn)這一任務(wù)的兩種常用方法。正確高差為,觀測(cè)高差為當(dāng)Sa=Sb時(shí)。40. 從圖上量得點(diǎn)M的坐標(biāo)XM=, YM=;點(diǎn)A的坐標(biāo)為XA=, YA=。經(jīng)緯儀測(cè)繪法的實(shí)質(zhì)是按極坐標(biāo)定點(diǎn)進(jìn)行測(cè)圖,觀測(cè)時(shí)先將經(jīng)緯儀安置在測(cè)站上,繪圖板安置于測(cè)站旁,用經(jīng)緯儀測(cè)定碎部點(diǎn)的方向與已知方向之間的夾角、測(cè)站點(diǎn)至碎部點(diǎn)的距離和碎部點(diǎn)的高程,然后根據(jù)測(cè)定數(shù)據(jù)用量角器(半圓儀)和比例尺把碎部點(diǎn)的位置展繪于圖紙上,并在點(diǎn)的右側(cè)注明其高程,再對(duì)照實(shí)地描繪地形。六、實(shí)踐操作題42.簡(jiǎn)述測(cè)回法測(cè)水平角的主要步驟和相應(yīng)的角度計(jì)算方法(假定觀測(cè)兩個(gè)方向)。 we need the courage to do it.His ments came hours after Fifa vicepresident Jeffrey Webb also in London for the FA39。s Premier League match at Chelsea on Sunday.I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport.For me it39。City39。s plaint. In a statement the Russian side added: We found no racist insults from fans of CSKA.Baumgartner the disappointing news: Mission aborted.The supersonic descent could happen as early as Sunda.The weather plays an important role in this mission. Starting at the ground, conditions have to be very calm winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our daytoday weather lives. It will climb higher than the tip of Mount Everest ( miles/ kilometers), drifting even higher than the cruising altitude of mercial airliners ( miles/ kilometers) and into the stratosphere. As he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence.The balloon will slowly drift to the edge of space at 120,000 feet ( Then, I would assume, he will slowly step out onto something resembling an Olympic diving platform.Below, the Earth bees the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still,
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