Railway GK Questions 2026

The sandstones, shales and limestones of this Purana system, which stretch across central India into the Son valley, contain the conglomerate beds in which diamonds are found, and the Panna mines of Madhya Pradesh as well as the diamonds once traded from the Kurnool area are associated with them.

From the Upper Carboniferous onwards, thick beds of plant material accumulated in troughs and freshwater basins on the Gondwana landmass and were buried under sandstone and shale, giving the coalfields of the Damodar, Mahanadi, Godavari, Son and Wardha valleys.

In geology a rock is any natural aggregate of one or more minerals that forms part of the earth's crust, whether it is hard like granite or soft like clay, and rocks are classified as igneous, sedimentary or metamorphic according to how they were formed.

Root-knot is caused by microscopic soil roundworms of the genus Meloidogyne, which enter the young root, settle in it and make the surrounding tissue swell into knots or galls; the plant then cannot draw water properly and wilts in the afternoon heat even when the soil is moist.

Phytoplasmas are bacteria without cell walls that live in the food-conducting tissue of the plant, and they are carried from plant to plant by sap-sucking leafhoppers, also called jassids; in little leaf of brinjal the leaves become very small and numerous, the plant bushes out and no fruit is set.

Bordeaux mixture is a suspension made by adding a solution of copper sulphate to one of lime, and it is the oldest fungicide still in regular use; it was devised in the Bordeaux region of France against downy mildew of the grapevine and is sprayed today on fruit trees, potatoes…

The correct answer is B, bunchy top of banana, a virus disease in which the plant is severely stunted and its leaves become short, narrow and crowded in a bunch at the top; it is carried by an aphid and by infected suckers used for planting, so control depends on…

Where this micronutrient is short, the leaf blade of cauliflower fails to expand and the leaf is reduced to a narrow, whip-like strip along the midrib, which gives the disease its name; the curd is small or does not form at all.

In khaira disease the leaves of young rice plants develop rusty brown spots that spread until the crop looks scorched, tillering is poor and growth is stunted; an application of zinc sulphate to the soil or as a foliar spray corrects it, which confirms that the cause is a deficiency…

Citrus canker is caused by a species of Xanthomonas, which enters through wounds, insect punctures and stomata and raises raised corky brown lesions, often with a yellow halo, on leaves, twigs and fruit; it spreads in splashing rain, on tools and on infected nursery plants.

The correct answer is A, Colletotrichum falcatum, a fungus that rots the internal tissue of the cane, turning it red with white patches and giving it a sour smell, and which spreads mainly through infected setts used for planting.

The rusts of wheat, named black, brown and yellow after the colour of the pustules they raise on the stem and leaves, are caused by species of Puccinia, and resistance to them was one of the traits selected in the dwarf wheats of the Green Revolution.

The epidemic of the 1840s destroyed the potato crop of Ireland and brought on the famine, and the study of that outbreak by Anton de Bary established plant pathology as a science.

Rammat is the open-air folk theatre of Bikaner and Jaisalmer, performed around Holi on a raised platform with the nagara and the dholak, and its akharas are a part of the towns' Holi calendar.

Panihari takes its name from pani, water, and the songs belong to the daily walk to the well or the stepwell and back with pots on the head; their images are of the rope, the pulley, the pot and the long road, and they often carry a woman's complaint or…

The folklorist Komal Kothari and the Rajasthani writer Vijaydan Detha founded Rupayan Sansthan at Borunda in Jodhpur district as an institute of folklore, and for half a century it recorded the songs, epics and instruments of the Manganiyars, Langas and Bhopas; Kothari also brought these musicians to audiences outside India.

Ghan instruments are solid bodies that sound when struck or shaken, without a stretched skin or a vibrating string, and the khartal, a pair of wooden blocks clapped together by Manganiyar performers, is the classic Rajasthani example, as are the manjira, the jhanjh, the thali, the chimta, the ghungroo and…

The Terah Taali is performed by women of the Kamad community, devotees of the folk deity Ramdevji of Ramdevra, who tie thirteen manjiras to their wrists, elbows, waist and ankles and strike them in rhythm while seated, often balancing pots or holding a sword in the mouth; the men accompany…

The bhapang is a small drum of a hollowed gourd with a skin head, through which a gut string runs; the player plucks the string and tightens or loosens it to slide the pitch, producing the talking tone of the Mewati folk songs.

The algoza is a double flute: the player holds two pipes at once, blowing a drone on one while playing the melody on the other, and a shepherd or a Langa musician can keep this up for long stretches using circular breathing.