Railway GK Questions 2026

Aerobic respiration is the breakdown of glucose in the presence of oxygen, giving carbon dioxide, water and a large amount of energy.

Nuclear power is produced by the fission of uranium and thorium, which are mined ores present in fixed quantities in the Earth's crust, so once used they cannot be replaced within human time.

Potassium sits in group 1 of the periodic table along with lithium, sodium, rubidium, caesium and francium, and these six are called the alkali metals because their oxides and hydroxides dissolve in water to give strong alkalis.

Graphite is built of flat sheets of carbon atoms arranged in hexagons, and while the atoms inside a sheet are joined by strong covalent bonds, the sheets themselves are held to one another only by weak van der Waals forces.

In an entity relationship diagram each symbol has a fixed meaning, and an attribute that can hold more than one value for the same entity, such as a person's several phone numbers, is drawn as a double ellipse.

This describes geothermal energy. Molten rock pushed up from deep inside the Earth collects as hot spots at shallower depths, and groundwater trapped near them is heated until it becomes steam under high pressure.

Guru Gobind Singh, born at Patna in 1666, was the tenth and last human Guru of the Sikhs. In 1699 at Anandpur Sahib he founded the Khalsa, gave the Sikhs the five symbols known as the five Ks and added the names Singh and Kaur.

The 56 K rating of a modem means it can transfer data at up to 56 kilobits per second, so the figure describes speed, not size.

An ATM set up, owned and operated by a non-bank company registered under the Companies Act is called a white label ATM, because it carries no bank's logo.

In a packet switched network a packet meets four kinds of delay at every router on its path, and transmission, processing and queuing delays are three of them.

The ones complement of a binary number is found by simply inverting every bit, turning each 0 into 1 and each 1 into 0.

Bacteria are grouped by shape, and bacilli are the rod-shaped ones; the Latin word bacillus itself means a small rod or stick.

Patachitra is the traditional cloth-scroll painting of Odisha, closely tied to the Jagannath temple at Puri. The word comes from pata, meaning cloth, and chitra, meaning picture.

Vijaya Lakshmi Pandit was elected President of the United Nations General Assembly for its eighth session in 1953, becoming the first Indian and the first woman in the world to hold that office.

Thrust is the force acting perpendicular to a surface, and the thrust acting on unit area of that surface is called pressure, so pressure = thrust ÷ area.

The Ryder Cup is a team golf tournament, played between teams representing the United States and Europe. It began in 1927 and is named after Samuel Ryder, the English seed merchant who donated the trophy.

Computer storage is counted in powers of two, so each step up the ladder multiplies by 1024, and one gigabyte equals 1024 megabytes.

Work done in moving a charge through a potential difference is W = Q × V, so W = 2 × 12 = 24 joule.

The tomb of Sher Shah Suri stands at Sasaram in the Rohtas district of Bihar, the town where he grew up.

Use the third equation of motion, which links velocity and distance without needing time: v squared equals u squared plus 2as.