State Exams GK Questions 2026

In pyrolysis the waste is heated to a high temperature in a closed chamber from which air is kept out, so the material does not burn but breaks into a liquid oil, a solid char and a combustible gas, all of which can be used as fuel or feedstock.

Vermicomposting uses earthworms, which swallow organic waste, grind it in their gizzard and pass it out as casts that are rich in nitrogen, phosphorus and potassium, so the product is a finer and more nutritious manure than ordinary compost and is ready sooner.

The Basel Convention was adopted in 1989 to stop rich countries from shipping toxic and hazardous waste to poorer countries for cheap disposal, and it requires the prior informed consent of the receiving country before any such consignment moves.

Under this idea a producer, importer or brand owner stays answerable for its product after the consumer has finished with it, and must arrange to collect back and recycle an agreed quantity of packaging or equipment; the plastic waste, e-waste and battery waste rules all run on it.

In biomethanation, anaerobic bacteria break down organic matter inside a closed digester where no oxygen is present, and the gas they release is mainly methane, which is what makes biogas burn with a clean blue flame and gives it its fuel value.

Microplastics are plastic particles under five millimetres across, whether they were manufactured that small, as in cosmetic microbeads and synthetic textile fibres, or were formed when larger plastic articles weathered and broke up in sunlight and waves.

The yellow category covers human and animal anatomical waste, soiled waste such as dressings and cotton contaminated with blood, expired medicines and chemical waste, and this material is destroyed by incineration, plasma pyrolysis or deep burial; nothing from the yellow bin is recycled.

Biodegradable waste is waste that bacteria and fungi can break down into simpler substances within a short time, and kitchen waste such as vegetable peel is the classic example; it is exactly the wet fraction that Indian cities compost or send to a biogas digester.

SQL stands for Structured Query Language, and it is used to create tables, insert rows, update and delete data and, above all, to ask questions of a relational database with statements such as SELECT; it is called non-procedural because the programmer states what result is wanted and the database system…

He designed Python in the Netherlands and released the first version in 1991, choosing a syntax with indentation instead of braces so that programs would be easy to read; the name comes from a television comedy series and not from the snake.

HyperText Markup Language uses tags to describe how the content of a web page is arranged, such as headings, paragraphs, lists, tables and images, but it has no variables, no conditions and no loops, so it cannot express logic or take decisions; for that reason it is called a markup…

Machine language is the only language the processor understands directly, because each instruction is a pattern of electrical states that is written as a string of zeros and ones; a program in machine language therefore needs no translation and runs fastest, but it is tied to one processor and is…

The correct answer is B, all of the options, because each of the other three statements is a genuine rule of the language and the question asks which of them apply.

Java has exactly eight primitive data types, namely byte, short, int, long, float, double, char and boolean, and long double is not among them; it belongs to C and C++, where it denotes an extended precision floating point number, so the option is a deliberate trap for candidates who have…

An interpreter reads one statement of the source program, translates it and executes it immediately before moving to the next, so it stops at the first error it meets and tells the programmer about that error alone; this makes it convenient for learning and for testing small pieces of code…

The command javac is the Java compiler: it takes a source file with the extension.java, checks its grammar and converts it into a class file containing bytecode, the intermediate code that any Java Virtual Machine can run.

He created C at Bell Laboratories in the early 1970s and used it to rewrite the UNIX operating system, which is why C is called the mother of system programming languages and still underlies most operating systems.

Its name is short for Formula Translation, it was developed by a team under John Backus at IBM and released in 1957, and it was the first language in which a programmer could write ordinary algebraic formulas instead of machine codes, which is why it is counted as the first…

Vishnu Sakharam Khandekar retold the story of King Yayati from the Mahabharata as a novel about desire and its cost, and for it he became the first writer in Marathi to receive the Jnanpith Award.

Ascribed to Tolkappiyar, it belongs to the Sangam age and lays down the rules of Tamil letters, words and poetic composition, including the division of poetry into akam, the inner world of love, and puram, the outer world of war and public life.