Defence GK Questions 2026

The adult skeleton has eighty bones in the axial part, that is the skull with the ear ossicles and hyoid, the vertebral column, the ribs and the sternum, and one hundred and twenty-six in the appendicular part, that is the limbs with the pectoral and pelvic girdles, making two hundred…

An adult set of thirty-two permanent teeth has eight incisors for cutting, four canines for tearing, eight premolars and twelve molars for grinding, so there is one canine on each side of each jaw.

It is a thin, strap-like muscle that runs across the front of the thigh from the hip bone to the inner side of the knee, and because it crosses two joints it is the longest muscle of the human body; it helps in bending the hip and the knee and…

Inertia depends only on mass, and a cricket ball is the heaviest of the four. Inertia is the tendency of a body to stay at rest or keep moving uniformly in a straight line unless a force acts on it; this is Newton's first law.

Infectious jaundice, caused mainly by the hepatitis A and hepatitis E viruses, spreads through water and food contaminated with faeces.

Spring tides have the highest high tides and the lowest low tides, so the tidal range is at its greatest.

In ferric oxide both iron atoms are in the same +3 oxidation state. In Fe₂O₃ three oxide ions carry a total charge of −6, shared equally by two iron atoms, so each iron is +3.

Article 39A, which directs the State to secure equal justice and provide free legal aid, was added by the 42nd Amendment in 1976.

Hypobromous acid has one hydrogen, one oxygen and one bromine atom, with bromine in the +1 oxidation state. The oxyacids of a halogen are named by how much oxygen they hold.

In Lok Sabha and State Assembly elections, the candidate with the most votes in a constituency wins, even without a majority.

Field lines always leave a conductor normal to its surface, and for a positive charge they point away from it.

Most of the Great Artesian Basin lies beneath Queensland, with smaller parts under New South Wales, South Australia and the Northern Territory.

Statement 1 describes the epicentre, not the hypocentre; statements 2 and 3 are correct. The hypocentre, or focus, is the point inside the Earth where the energy of an earthquake is released.

Buckminsterfullerene is C60, a cage-shaped molecule of sixty carbon atoms. The sixty atoms are arranged in 12 pentagons and 20 hexagons, the same pattern as the panels of a football, which is why the molecule is also called a buckyball.

The eye changes the focal length of its lens to focus and changes the size of its pupil to control the light.

Diffusion is the spontaneous mixing of the particles of two substances, caused by the constant motion of those particles. Particles of matter are always moving and have spaces between them.

Vinoba Bhave asked every landowner to treat him as a son and give him a son's share, one-sixth of the land, for the landless.

Gravity is a conservative force, so the work it does never depends on the path. The work done by gravity on a body of mass m is mgh, where h is the vertical height between the start and the end.

On the magnetic equator the angle of dip is zero, so the Earth's magnetic field there is entirely horizontal. The Earth behaves like a huge bar magnet.

In a uniform field the two poles of the magnet feel equal and opposite forces, which cancel each other.