Wzpdcl 29.06.2019
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West Zone Power Distribution Company Limited (WZPDCL) Assistant Engineer (Mechanical) Exam date: 29.06.2019, Exam Time: 10.30 AM ~ 11.30 AM, Venue: KUET Total Marks: 100
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Em208 203 assignment_1_with_solution
The document is an assignment from an engineering course that contains 5 questions about thermodynamic systems and properties. It includes questions about differentiating between open and closed systems, state variables that define phases of matter, using pressure-temperature diagrams to analyze multi-phase systems, and completing thermodynamic property tables using reference tables. The responses provide definitions, explanations, calculations, and diagram labeling to fully answer each question.
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2) Combined cycles can achieve over 50% efficiency, higher than either cycle alone. The document provides an example combined cycle calculation.
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2) Combined cycles can achieve over 50% efficiency, higher than either cycle alone. The document provides an example combined cycle calculation.
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2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
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Thermodynamics Assignment 02 contains calculations for various cycles of a steam power plant operating between 40 bar and 0.04 bar:
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This document provides an overview of a steam power plant. It discusses the history and development of steam engines and turbines for power generation. It then describes the key components of a steam power plant, including the boiler, turbine, condenser, and generator. The document explains that steam power plants operate on the Rankine cycle, where water is heated to steam to drive the turbine, then condensed back to water to be reheated. It provides diagrams of the ideal and actual Rankine cycles and discusses methods to increase the efficiency of the plant.
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1. Supercritical boilers operate above the critical pressure of water (221 bar), where there is no distinction between water and steam.
2. Operating above the critical pressure provides benefits like higher cycle efficiency, lower fuel consumption and emissions, and improved load change flexibility compared to subcritical boilers.
3. The key difference between subcritical and supercritical boilers is that supercritical boilers are drumless, with evaporation occurring in a single pass and flow induced by the feed pump rather than natural circulation.
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T.H. Chemicals wants to produce nitrogen, oxygen, and argon from air using cryogenic distillation. Cryogenic air separation is the dominant technology for producing large quantities of high-purity liquified gases. The process involves compressing and cooling air, removing impurities via membrane separation, further cooling the air using heat exchangers, and fractionating the components in distillation columns. Oxygen is recovered from the bottom of the low pressure column at 99.49% purity, nitrogen from the top at 99.275% purity, and argon from the middle. Heat integration occurs between the condenser and reboiler to improve efficiency.
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As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
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Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
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2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
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4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
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2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
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This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
International Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
官方认证美国密歇根州立大学毕业证学位证书原版一模一样
原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Literature Review Basics and Understanding Reference Management.pptx
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMS
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Understanding Inductive Bias in Machine Learning
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Eric Nizeyimana's document 2006 from gicumbi to ttc nyamata handball play
this notes have been created
by Eric36 at nyamata ttc
after readings
pe book for y2sme .
Recycled Concrete Aggregate in Construction Part III
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
学校原版美国波士顿大学毕业证学历学位证书原版一模一样
原版一模一样【微信：741003700 】【美国波士顿大学毕业证学历学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Comparative analysis between traditional aquaponics and reconstructed aquapon...
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
New techniques for characterising damage in rock slopes.pdf
rock mass characterization and New techniques for characterising damage in rock slopes
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This Presentation will give you a brief idea about what Computational Engineering at IIT Hyderabad has to offer.
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International Conference on NLP, Artificial Intelligence, Machine Learning an...
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Generative AI leverages algorithms to create various forms of content
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Comparative analysis between traditional aquaponics and reconstructed aquapon...
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New techniques for characterising damage in rock slopes.pdf
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Wzpdcl 29.06.2019
- 1. Presented By- Engineering News Bangladesh FB/bdengrnews engineeringnewsbd@gmail.com Copying any contents of this document without permission is crime. West Zone Power Distribution Company Limited (WZPDCL) Assistant Engineer (Mechanical) Exam date: 29.06.2019, Exam Time: 10.30 AM ~ 11.30 AM, Venue: KUET Total Marks: 100 Ques. No Question Marks Q.1 লিঙ্গ পলিবর্তন কিঃ সপত কিযাণীয়েষু 2 Q.2 সলি লবয়েদঃ মৃন্মে বজ্জার্ 2 Q.3 বযাস বাকযসহ সমাস লনণতে কিঃ যুবজালন সমযক Q.4 বাগধািা বাকযগঠন সহঃ ককউ ককটা বযায়েি আধুলি Q.5 কািক ও লবভলি লনণতে কিঃ বাবা আমায়দি কাপড় পলড়য়েয়েন। অকৃ র্কায়যত োত্র ভে পাে না। Q.6 Translation into English: আলম যলদ িাজা হর্াম। বাবা লক গর্িায়র্ বাসাে এয়সলেয়িন? Q.7 Sentence Transformation: Nobody trusts a liar. (Interrogation) Everybody wants to be happy. (negative-interrogative) 2 Q.8 English to Bangla: oh that i could help the old man. There seems to be a mistaken 2 Q.9 Correct Preposition: They insist me --- doing this. I read the book ---- much interest. 2 Q.10 Correct the sentence (right form of verb) The wall is built by brick Burn the letter in ashes. 2
- 2. Presented By- Engineering News Bangladesh FB/bdengrnews engineeringnewsbd@gmail.com Copying any contents of this document without permission is crime. Ques. No Question Marks Q.11 General knowledge উত্তি কগািায়ধত সবয়েয়ে বড় লদন কয়ব? সবয়েয়ে প্রােীন সভযর্া ককাথাে গয়ড় উয়ঠ ? ওোনয়ে লিয়কয়ট বাাংিায়দয়েি সয়বতাচ্চ িান কর্? সম্প্রলর্ ককাথাে কিাহাি আকলিক পাওো কগয়ে? স্কটিযান্ড ইোেত ককাথাে অবলির্ ? লবশ্বকাপ লিয়কট ২০১৯ কর্লট কভনুয়র্ অনুলির্ হয়ে ? ওোর্ল্ত বযাাংয়কি অপি নাম লক ? IDCOL পূণত রূপ লক? BERC পূণত রূপ লক? মুলিযুয়েি সমে বাাংিায়দেয়ক কর্লট কসক্টয়ি লবভি কিা হয়েলেয়িা ? 10X1 Q.12 Difference between shaper and planer machine. 5 Q.13 Define Ton of Refrigeration and COP. 5 Q.14 What is meter rate? Write down its main components? 5 Q.15 Contrast Welding and soldering 5 Q.16 Distinguish between boiler mountings and accessories? Write down three components of each. 5 Q.17 In which thermodynamic cycle gas turbine is run? Draw P-V and T-s plan? Also distinguish between open and close gas turbine system ? 5 Q.18 What is critical insulation of Thickness? Why it is called critical insulation? 5 Q.19 What is refrigerant? How mixtures of refrigerants is designated? 5 Q.20 What is base load power plant? What is the characteristics of base load power plant? 5 Q.21 What are the advantages of underground power transmission? 5 Q.22 What is specification fuel consumption? What is octane number of a fuel? 5 Q.23 In a boiler 400Kg of fuel is consumed to produce 3200 Kg steam , calorific value of fuel 32675 KJ/Kg, enthalpy of steam is 2976 KJ/Kg, feed water enthalpy 189 KJ/kg, find thermal efficiency boiler ? (approx. data) 5 Q.24 Single acting reciprocating pump having piston area 0.1 m2 , length 0.3 m, rpm 500, suction and delivery head 6m and 4m, find power required to drive the pump ? take specific weight 9810 N/m3 (approx. data) 5