RRB ALP GK Questions 2026

The balanced equation is 2FeSO4 → Fe2O3 + SO2 + SO3, so p = 2, q = 1, r = 1 and s = 1.

Mass by mass percentage of a solution is the mass of the solute divided by the mass of the whole solution, multiplied by 100.

In the given equation sodium hydroxide, which is a base, reacts with sulphuric acid to give sodium sulphate and water, and a reaction in which an acid and a base cancel each other to form a salt and water is called neutralisation.

The heat produced by a current is given by Joule's law of heating, H equals I squared into R into t. Here the current is 0.3 A, the resistance is 418 ohms and the time is 1 minute, which is 60 seconds.

A quantity that has both magnitude and direction is a vector, and momentum, which is the product of mass and velocity, is a vector because velocity has a direction.

Ammonium chloride is the salt of a strong acid, hydrochloric acid, and a weak base, ammonium hydroxide, so its aqueous solution is acidic and its pH is less than 7.

Stomata are the tiny pores on the surface of a leaf through which a plant takes in carbon dioxide and gives out oxygen and water vapour, so the exchange of gases takes place through them.

Adding water to an acid spreads the same number of hydrogen ions through a larger volume, so the number of hydrogen ions per unit volume falls, and that process is called dilution.

The object stands between the pole and the focus of the concave mirror, so the image formed is virtual, erect and enlarged, and the magnification is positive.

Birds and mammals are warm-blooded, which means they keep their body temperature nearly constant whatever the temperature outside, and a pigeon is a bird.

The weight of an object is the force with which the earth attracts it, so the force of gravity acting on an object is its weight.

In the equation given, glucose reacts with oxygen to release carbon dioxide, water and energy, and the breakdown of food inside the cell to release energy is called respiration.

Deposition is the direct change of a substance from the gaseous state to the solid state, without passing through the liquid state in between.

The Chenab Bridge, built on the Udhampur to Srinagar to Baramulla rail link, rises about 359 metres above the bed of the Chenab and is the highest railway arch bridge in the world, its single steel arch spanning the gorge.

The Railway Board was constituted in 1905 to supervise the many private railway companies then operating in India, and it continues as the apex body of the Ministry of Railways.

Chittaranjan Locomotive Works in West Bengal is the locomotive plant of Indian Railways and builds electric locomotives; it began with steam locomotives and turned to electric traction.

Broad gauge in India measures 1,676 millimetres between the inner faces of the rails, and it carries almost all long distance traffic; the conversion of older lines to this gauge is called Project Unigauge.

The correct answer is C, the Darjeeling Himalayan Railway, inscribed in 1999 as the first of the three lines that together form the World Heritage property called the Mountain Railways of India.

The Vivek Express runs between Dibrugarh in upper Assam and Kanniyakumari at the southern tip of the mainland, covering roughly 4,200 kilometres, the longest route of any train in the country.

The South Central Railway has its headquarters at Secunderabad in Telangana.