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cnc paper
| Feature | NC Machine | CNC Machine | DNC Machine |
|---|---|---|---|
| Full Form | Numerical Control | Computer Numerical Control | Direct Numerical Control |
| Control Method | Controlled by punched tape/cards | Controlled by onboard computer | Controlled by central computer network |
| Program Storage | External tape storage | Stored in machine memory | Stored in central computer |
| Editing of Program | Difficult | Easy editing possible | Very easy and centralized editing |
| Flexibility | Less flexible | More flexible | Highly flexible |
| Accuracy | Moderate |
bcdlt
Ethereum is a decentralized, open-source blockchain platform used for executing smart contracts and developing decentralized applications (DApps). It was proposed by Vitalik Buterin in 2013. Ethereum extends blockchain functionality beyond cryptocurrency by providing a programmable platform. Architecture of Ethereum 1. Blockchain Layer: Ethereum maintains a distributed ledger where all transactions and smart contract data are stored in blocks connected cryptographically. Every node maintains a copy
BCPS END
phycology
2: Air Pressure and Atmospheric Circulation
Air Pressure
- Force exerted by the weight of air on Earth's surface.
- Measured by barometer.
- Standard sea-level pressure = 1013.25 mb (hPa).
Factors Affecting Air Pressure
- Temperature
- Altitude
- Water vapour
- Earth's rotation
Pressure Belts
| Latitude | Belt |
|---|---|
| 0° | Equatorial Low (Doldrums) |
| 30° | Subtropical High (Horse Latitudes) |
| 60° | Subpolar Low |
| 90° | Polar High |
Memory Trick
0 Low → 30 High → 60 Low → 90 High
Forces Affecting Winds
ESDDD
Explain Breaking Loop Method for Minimum Number of Heat Exchangers
1. Breaking loop method is used in Heat Exchanger Network (HEN) design to reduce the number of heat exchangers. 2. In a Heat Exchanger Network, loops are formed when streams are connected in a closed path. 3. Presence of loops increases the number of exchangers and overall installation cost. 4. The main objective of breaking loop method is to achieve minimum number of heat exchangers. 5. In this method, one heat exchanger from
Esddddd
Heat exchange and networking 1. Heat exchanger is a device used to transfer heat from one fluid to another without direct mixing of fluids. 2. In a heat exchanger, hot fluid loses heat while cold fluid gains heat. 3. Heat exchangers are widely used in chemical, petroleum, food and power industries. 4. Common types of heat exchangers are shell and tube, double pipe and plate heat exchangers. 5. Heat exchangers help in heating, cooling, condensation and evaporation processes. 6. Heat exchangers improve
taxation
UNIT 1. Q1. What do you mean by Tax Management? Explain its features and scope. Also differentiate between tax planning, tax avoidance and tax evasion.
1. Introduction
Tax is a compulsory financial obligation imposed by the government on individuals and organizations to finance public expenditure. In this context, tax management plays a significant role in ensuring that taxpayers fulfill their legal responsibilities while minimizing their tax liability. It helps in maintaining financial discipline,
Repair and rehabilitation
UNIT-01
Q.1&2. Brief about the physical deterioration of concrete. Ans:- 1)Physical deterioration of concrete refers to the damage or reduction in strength of concrete due to physical actions such as temperature changes, abrasion, erosion, and moisture variation. It affects the durability and service life of structures.2)Freeze-thaw action is one of the major causes of deterioration in cold regions. Water inside concrete pores freezes and expands, causing cracks and surface scaling.3)Abrasion
Adv php
Q)Explain XML parser and its type.
An XML parser is software/library used to read and process XML documents.It checks XML syntax and converts XML data into usable form.
Types of XML Parsers
1) DOM Parser (Document Object Model)
Loads complete XML document into memory.
Represents XML as tree structure.
Allows reading and modifying XML.
Features - Easy navigation
Supports editing
Memory consuming
2)SAX Parser (Simple API for XML)
Reads XML line by line.
Event-driven parser.
Faster and memory efficient.