高级化学检验工试题.docx

Delegates, staff: Hello! in the run-up to the Spring Festival, we held one session of four staff representatives Conference 2013-workshop, full back in 2012, careful analysis of the current situation, discuss 2013 development plans. Here, on behalf of my company 2013 work reports to the General Assembly, for consideration. Pillar I, 2012 back in 2012, XX power companies adhere to the partys 17 great spirit for guidance, comprehensively implement the scientific concept of development, promoting cost-leadership strategy, standards, focus on implementation, lean management, continuously improve, smooth present safety situation of enterprise management, business management and control scientific and standardized, and the dedication of staff, manage a harmonious and democratic atmosphere of the good situation. Main indicators are as follows:-the battery indicator: power generation totaled 7.815 billion kWh, beyond the annual budget implementation capacity of 315 million kWh, an increase of 757 million kWh. Sales totaled 7.425 billion kWh, exceeding sales of 330 million kWh the annual Executive budget, an increase of 729 million kWh. -Security measures: unplanned outages 2.5 times. No personal injury accident occurred, no major accident and above, no major fire accidents without environmental pollution accidents, safety for three consecutive years to maintain stability to good posture. Business financial indicators: total profits of 255 million Yuan, beyond the annual budget of 207 million Yuan, beyond the Datang company index 41.89 million Yuan, an increase of 1.76 million Yuan, FCM assessment at grade four. -Energy: power supply standard coal completing 312.25 g/kWh, down 0.1 g/kWh; integrated auxiliary power consumption ratio in 5.12%, down 0.26%; pollutant emissions performance greatly reduced compared to last year, carbon 0.09 g/kWh, sulfur dioxide 0.104 g/kWh NOx 0.512 g/kWh; dust removal efficiency of more than 99.8%. -Reliability index: equivalent availability factor in 93.47%, increased 7.95% from a year earlier. Equivalent forced outage rate 0.08%, 0.16% reduction over the same period a year earlier. Major achievements: first, we should adhere to the two management system basis, strengthening technological research, strengthen hidden hazards control and intrinsic safety Enterprise construction took new steps. -The two management system for improvement. Focus on promoting the power of the company management system and the application and implementation of the safety loop five-star management system, improve the safety management system, realize the system of safety control. Further regulate security routines, safety supervision and management network role to play to achieve closed-loop. Strengthening the supervision and management of habitual violation of, strengthening the safety supervision of outsourcing contractors. Carried out in spring and autumn of security inspections, flood control and inspection, safety production month, day supervision of production safety and the Olympic Games and other化学检验分析高级理论知识试卷一、化学检验分析工单项选择题(下列每小题备选答案中，只有一个符合题意的正确答案。每小题2分，共15题。)1 、我国的标准分为( )种A ：4B ：5C ：3D ：22 、下面论述中错误的是( )。A ：方法误差属于系统误差B ：系统误差包括操作误差C ：系统误差呈现正态分布D ：系统误差具有单向性3 、玻璃电极使用时，必须浸泡24hr左右，目的是什么?A ：消除内外水化胶层与干玻璃层之间的两个扩散电位;B ：减小玻璃膜和试液间的相界电位E内;C ：减小玻璃膜和内参比液间的相界电位E外;D ：减小不对称电位，使其趋于一稳定值;4 、称量绝对误差为+0.2mg，若要求称量相对误差小于0.2%，则应至少称取( )g。A ：1gB ：0.2gC ：0.1gD ：0.02g5 、称取矿样0、2500克，处理成Fe(OH)3沉淀后灼烧为Fe2O3，称得其质量为0、2490克,则矿石中Fe3O4的百分含量为( )。 (已知：M Fe3O4=231、5g/mol, M Fe2O3=159、7g/mol)A ：99、6%B ：96、25%C ：96、64%D ：68、98%6 、化学检验分析分光光度法的吸光度与( )无关。A ：入射光的波长B ：液层的高度C ：液层的厚度D ：溶液的浓度7、气相色谱分析中，一个特定分离的成败，在很大程度上取决于( )的选择。A ：检测器B ：色谱柱C ：皂膜流量计D ：记录仪8 、贮存易燃易爆，强氧化性物质时，最高温度不能高于：A ：20B ：10C ：30D ：09 、下列药品需要用专柜由专人负责贮存的是：A ：KOHB ：KCNC ：KMnO4D ：浓H2SO410 、关于用电操作正确的是( )。A ：人体直接触及电器设备带电体B ：用湿手接触电源C ：使用正超过电器设备额定电压的电源供电D ：电器设备安装良好的外壳接地线11 、淀粉是一种 ( )指示剂。A ：自身B ：氧化还原型C ：专属D ：金属12 、标定I2标准溶液的基准物是：( )A ：As203B ：K2Cr2O7C ：Na2CO3D ：H2C2O413 、我国家行业标准的代号与编号GB/T 18883-2002中GB/T是指( )。A ：强制性国家标准B ：推荐性国家标准C ：推荐性化工部标准D ：强制性化工部标准14 、EDTA的有效浓度Y+与酸度有关，它随着溶液pH值增大而：( )A ：增大B ：减小C ：不变D ：先增大后减小15 、标准是对( )事物和概念所做的统一规定。A ：单一B ：复杂性C ：综合性D ：重复性二、化学分析检验工判断题(下列每小题备选答案中，只有一个符合题意的正确答案。每小题1分，共10题。) 1、检修气相色谱仪故障时，一般应将仪器尽可能拆散。( )2 、物料的化学组成较为均匀，杂质较少，采样后存放较长时间，不会影响结果的测定。( )3 、水洗涤玻璃仪器时，使其既干净又节约用水的方法原则是少量多次。( )4、掩蔽剂的用量过量太多，被测离子也可能祉掩蔽而引起误差。( )5、化学检验分析的酸碱滴定中，用错了指示剂，不会产生明显误差。( )6、气样中的被测组分被吸收剂吸收后，气样体积与被吸收体体积的差值即是被测组分的体积( )。7、测定时，将气样从左到右依次驱入吸收瓶和爆炸瓶进行吸收和燃烧。( )8、沉淀滴定银量法中，各种指示终点的指示剂都有其特定的酸度使用范围。( )9、KMnO4能与具有还原性的阴离子反应，如KMnO4和H2O应能产生氧气。( )10、利用保留值的色谱定性分析，是所有定性方法中最捷径最准确的方法。( )三、简答题(共9题。)。1 、滴定管为什么每次都应从最上面刻度为起点使用?(本题4 分)2 、电子天平称样时不稳定，数字不停的跳动，分析有哪些原因造成?(本题4 分)3 、在酸碱滴定中，指示剂用量对分析结果有什么影响?(本题4 分)4 、实验室中失效的的铬酸洗液可否倒入下水道?为什么?应如何处理?(本题4 分)5 、有效数字(本题2 分)6 、有效数字修约(本题2 分)7 、恒重(本题2 分)8 、行业标准(本题2 分)9 、回归分析四、填空题，如果有多个空，空与空之间用一个空格空开。(每小题1分，共12题。)1 、进行滴定时，滴定速度以( )为宜(或( )切不可成( )放下。滴定时( )锥形瓶或( )锥形瓶都是不规范的。2 、一个组分的色谱峰其( )可用定性分析.( )可用定量分析.峰宽可用于衡量( )色谱峰形越窄,说明柱效率( )3 、滴定管按其容积不同分为( )( )( )4 、容量瓶颈外有一圈标线，( )5、电热恒温干燥箱内禁止烘烤( )( )( )、以及( )有腐蚀性的物体。6、恒重的定义即前后两次称量之差不超过( ).7、爆炸极限是指( )8、常用的配位掩蔽剂有( )( )( )9、钙指示剂使用的PH值范围为( )10、企业的质检机构因具有( )( )( )11、朗伯定律是说明在一定条件下，光的吸收与( ) 成正比，比耳定律是说明在一定条件下，光的吸收与( ) 成正比，两者合为一体称为朗伯-比耳定律，其数学表达式为( )。12、定量滤纸也称为无灰滤纸，根据过滤的速度不同可分为( )( )( ).高级化学检验员培训中，很多学员希望可以了解更多的专业知识，化学检验分析是很广泛的一个工种，包含的技术成分很多，包括了普遍的化学检验知识、仪器操作分析技术、检验技术基础、法律法规等专业知识，此实训模拟试题是高级化学分析检验员培训的模拟考题，只提供学员参考，不可认为是考试题目而准备训练，请各参加的学员自行下载学习训练。activities, comprehensive and tamping Safety Foundation . Troubleshooting, management mechanism, give full play to role of technical supervision and realization of troubleshooting, management, improved process management. This year completed the boiler lower header leakage, boiler pressure, a major risk management, completed 29 of great risks and 3 General problems of governance. Complete chemistry lab construction, thermal control, and complete the boiler scale integrated management, host shafting vibration of 10 scientific and technological projects, such as. Complete supercritical 630MW on-line simulation system development and application of circulating water MCC standby power transformation, the transformation of desulfurization waste water, the unit water supply system of comprehensive treatment and discharge valve modification of coal mill 5 key technological transformation projects, group health is improved. -Science and technology innovation is further increased. Strengthen the characteristics of supercritical unit major issues, gradually clearing the particularity of supercritical unit and regularity. Developed motor oil time management, switch action times, statistics, coal-aided measurement software, improves the production level of lean management. Increased investment in science and technology, reporting science and technology projects and 14 technical project total cost percentage of the total annual production output of 0.25%. Large-scale coal-fired power plant flue gas desulfurization, denitrification complete development and application of key technologies project, won the national science and technology progress second prize. 630MW supercritical units optimized control strategies and the 630MW development and application of on-line simulation system for supercritical units, supercritical 600MW units of turbine driven boiler feed pump set of comprehensive treatment of defects Datang technology respectively one or two and third. Meanwhile, information technology achievements, the company was named China power information technology benchmarking enterprises. -Repair and maintenance has improved further. Modify the inspection standards a