SSC GD Constable GK Questions 2026

The Eustachian tube, also called the auditory tube, runs from the cavity of the middle ear to the nasopharynx, the upper part of the throat behind the nose, and its function is to keep the air pressure on the inner side of the eardrum equal to the pressure outside.

The blind spot, also called the optic disc, is the small area of the retina from which the fibres of the optic nerve pass out of the eyeball; it has neither rods nor cones, so an image falling on it is not registered and we do not notice the gap…

In myopia the eyeball is too long or the lens too strongly curved, so light from a distant object is brought to a focus in front of the retina and the distant object appears blurred.

Rhodopsin, also called visual purple, is the pigment of the rod cells; it is extremely sensitive to light, which is why rods allow us to see in dim light, though only in shades of black and white.

The retina is the innermost coat of the eyeball and it carries the photoreceptor cells, the rods and the cones, which convert light into nerve impulses that the optic nerve carries to the brain; the image formed on the retina is real and inverted, and the brain interprets it as…

The three semicircular canals of the inner ear are set at right angles to one another and are filled with fluid; movement of the head moves the fluid, which stimulates the receptors and tells the brain about the position and motion of the head, so that balance or equilibrium is…

The stapes, also called the stirrup because of its shape, lies in the middle ear and is the smallest bone in the human body; it passes the vibration received from the eardrum on to the oval window of the inner ear.

Gustatory receptors are the receptors of taste, and they lie in the taste buds of the tongue, which sit mostly on small projections called papillae; they are stimulated by chemicals dissolved in saliva and send impulses to the brain.

The iris is the coloured ring in front of the lens, formed by the front part of the choroid, and the muscles in it widen or narrow the pupil so that the right amount of light reaches the retina; in dim light the pupil opens wide and in bright light…

The correct answer is that he asked people to report the drug trade on the Narcotics Control Bureau’s toll-free helpline, saying that the government would act on the information the public provided.

The effigy burnt by Amit Shah at Ludhiana on 20 October 2026 was described as the symbolic Ravana of chitta, which let the festival’s central idea, the victory of good over evil, carry a message about the drug trade in Punjab.

Speaking at the Vijayadashami festival in Ludhiana on 20 October 2026, the Union Home Minister said the resolve taken that day was to free the whole of Punjab from the drug trade by that date and to make the state drug-free, and he described it as the greatest tribute possible…

The Kajli or Kajliyan fair of Mahoba is held just after Raksha Bandhan and recalls the battle in which the Bundelkhand heroes Alha and Udal are said to have defended the town; the Alha ballads of the region are sung at it.

Bateshwar lies in Agra district on the Yamuna, where a long row of Shiva temples stands along the ghat; its Kartik Purnima fair is both a bathing fair and one of the biggest animal fairs of Uttar Pradesh, and the Jain tirtha of Shauripur is close by.

Dewa, in Barabanki district, holds the dargah of the Sufi saint Haji Waris Ali Shah, and its annual fair in Kartik draws a large crowd and a well-known mushaira, with Hindus and Muslims both taking part.

The Ramlila of Ramnagar, patronised by the Kashi Naresh, is staged across the town itself, with different localities standing for Ayodhya, Janakpur, Chitrakoot and Lanka, and it runs for about a month from Bhadrapada.

Dev Deepawali falls on the full moon of Kartik, fifteen days after Diwali, when lakhs of earthen lamps are lit on the steps of the Varanasi ghats and floated on the river; the Ganga Mahotsav of music and crafts closes on the same day.

The Nauchandi Mela of Meerut is held on the ground that holds both the Nauchandi Devi temple and the dargah of Bale Miyan, and it begins on the Sunday after Holi.

Lathmar Holi is played between Barsana, remembered as the village of Radha, and Nandgaon, remembered as the village of Krishna: the men of Nandgaon come to Barsana and the women of Barsana drive them back with sticks, which gives the festival its name.

The Magh Mela is held every year on the sands of the Sangam at Prayagraj, running from Paush Purnima to Mahashivratri, and pilgrims who live there through the month under a fixed discipline are called kalpvasis.