Defence GK Questions 2026

The cranial nerves arise from the brain and serve the head and neck, among them the optic nerve of sight, the auditory nerve of hearing, the olfactory nerve of smell and the vagus, which is the longest cranial nerve and reaches down to the heart, lungs and stomach.

Iodine is needed to make thyroxine, so when the diet is short of it the thyroid gland works harder and enlarges into a visible swelling of the neck called goitre; a severe shortage in a growing child causes cretinism and in an adult myxoedema, and iodised salt is the standard…

Insulin lowers the level of glucose in the blood by helping the cells take it in and by having the liver store it as glycogen, and a want of insulin or a failure of the body to respond to it causes diabetes mellitus.

It is called the master gland because its secretions control other glands: thyroid stimulating hormone drives the thyroid, adrenocorticotropic hormone the adrenal cortex, and the gonadotropins the testes and ovaries, besides its own growth hormone.

The correct answer is B, the cerebellum, which lies below and behind the cerebrum and coordinates the work of the muscles so that movement is smooth and the body stays balanced; this is why a person whose cerebellum is affected by alcohol staggers.

The correct answer is B, the thyroid gland, a butterfly-shaped gland in front of the windpipe in the neck, which is the largest purely endocrine gland in the body and secretes thyroxine, triiodothyronine and calcitonin.

The brain is the organ that interprets pain, but its own tissue has no pain receptors, so cutting or pricking it causes no sensation; the covering membranes, the blood vessels and the scalp do have receptors, which is why a headache hurts.

A bacterial flagellum is built of exactly these three parts. The filament is the long thread outside the cell, made of the protein flagellin coiled into a hollow helix, and it acts like a propeller.

The Maginot Line was the chain of concrete forts that France built along its border with Germany. It is named after Andre Maginot, the French war minister who pushed the project through, and it was built in the 1930s after the First World War to stop another German invasion.

The local time of 82 degrees 30 minutes east is taken as Indian Standard Time for the whole country. This meridian passes through Mirzapur in Uttar Pradesh.

New oceanic crust is made at mid-ocean ridges, where magma rises, cools and is pushed outwards on both sides, and that process is called seafloor spreading.

A pyramid of energy is always upright because energy is lost as heat at every step of a food chain, so each higher trophic level holds less energy than the one below it.

The Inter Tropical Convergence Zone is the low-pressure belt near the equator where the north-east and the south-east trade winds meet.

An ecotone is the transition zone where two different ecosystems meet and mix, such as the belt between a grassland and a forest, an estuary between a river and the sea, or a mangrove strip between land and ocean.

An inselberg is an isolated residual hill that rises abruptly from a plain in a hot desert, so it is the work of weathering and wind in arid regions, not of glaciers.

That four-part description is the goal the conference's key deliberations were aligned to, and it was to be reached through jointness, coordination across agencies, the best use of available resources and strategic alignment.

He underscored the Navy's role as a strategic force multiplier in safeguarding national interests, commended its operational commitment to maintaining energy security and its efforts on technology absorption and indigenisation, and pressed for technology-driven transformation, resilience and greater integration among the defence forces.

The second edition of the Naval Commanders' Conference 2026 was conducted in New Delhi over three days, from 29 September to 1 October 2026, and it was at this apex-level sitting that the Navy's operational and materiel preparedness was reviewed.

The official account records that the boxer took the gold with an emphatic victory in the final, which indicates a commanding performance rather than a result that could have gone either way.

The Prime Minister used exactly this framing, which marks the medal as the closing result of the country's boxing effort at these Games, and he separately called the boxer's passion and dedication noteworthy.