Notes and Study material for Exams
Sulfur Hexafluoride: A Powerful Greenhouse Gas with a Complex Legacy Sulfur hexafluoride (SF6), a colorless, odorless, and non-flammable gas, has found widespread applications in various industries due to its unique properties. However, its remarkable stability, which makes it ideal for certain applications, also poses a significant environmental challenge. SF6 is an extremely potent greenhouse gas, … Read more
Disaster Management Models. Roles and responsibilities of stakeholders including community, Concept of first responders Disaster management (DM) is a challenging domain to model because of the variety of dynamic characteristics attached to the domain. Metamodeling is a model-driven approach that describes how semantic domain models can be built into an artifact called a Metamodel. By … Read more
Power distribution Primary distribution lines contain a distribution transformer present in the locality of the clientele. Primary distribution ranges from 4 to 35-kilo Voltage. Only industries can directly feed the transmission line. Most Average consumers are connected to a transformer that brings down the voltage to a useable level. The distribution Network for the primary … Read more
The Makaravilakku: A Beacon of Faith and Tradition The Makaravilakku, a celestial spectacle that illuminates the skies above the Sabarimala Ayyappan Temple in Kerala, India, is much more than just a natural phenomenon. It is a deeply ingrained part of the cultural and religious fabric of the region, drawing millions of devotees to the temple … Read more
The Fiery Menace: Understanding Wildfires Wildfires, once a natural part of many ecosystems, have become an increasingly destructive force in recent decades. Driven by a complex interplay of climate change, human activity, and natural factors, these fiery events pose a significant threat to human lives, property, and the environment. This article delves into the multifaceted … Read more
Combustion and Incineration: A Comprehensive Overview Combustion and incineration are two closely related processes that involve the rapid chemical reaction between a substance and an oxidant, typically oxygen, producing heat and light. While both processes involve burning, they differ in their applications, objectives, and environmental implications. This article delves into the intricacies of combustion and … Read more
A) What is ultrasound waves and outline its benefits? Waves which have frequency more than 20,000 Hz and which are not audible to human ears but audible to dogs, cats , bats, whales. Ultrasounds are used in various different fields. They are used to detect objects and measure distance. Ultrasound imagining is used in the … Read more
Construction Materials and clays Construction material is any material used for construction purpose such as materials for house building. Wood, cement, aggregates, metals, bricks, concrete, clay are the most common type of building material used in construction. The choice of these are based on their cost effectiveness for building projects. Many naturally occurring substances, such … Read more
Diseases of Plants caused by bacteria Aster yellows Aster yellows,caused by a phytoplasma bacterium, affecting over 300 species of herbaceous broad-leafed plants. Aster yellows is found over much of the world wherever air temperatures do not persist much above 32 °C (90 °F). As its name implies, members of the family Asteraceae are … Read more
found where rainfall is about 25-75 cm per year, not enough to support a forest, but more than that of a true desert. vegetation formations that are generally found in temperate climates. In India, they are found mainly in the high Himalayas. The rest of India’s grasslands aremainly composed of steppes and savannas. Steppe … Read more