SSC CGL GK Questions 2026

In the sliding filament theory of contraction, a nerve impulse causes calcium to be released from the sarcoplasmic reticulum; the calcium exposes binding sites on the thin actin filaments, the heads of the thick myosin filaments attach to them and swivel, using energy from ATP, and the actin is pulled…

A tendon is a cord of white fibrous connective tissue, with very little elasticity, that transmits the pull of a contracting muscle to the bone it moves; the Achilles tendon at the heel is the best known example.

The rounded head of the humerus sits in the socket of the shoulder blade and the head of the femur sits in the socket of the hip bone, which lets the limb move forwards, backwards, sideways and in rotation; these are synovial joints with a fluid-filled cavity.

All of them are attached behind to the thoracic vertebrae. In front, the first seven pairs join the sternum directly and are called true or vertebrosternal ribs; the next three pairs join the seventh rib through cartilage and are called false or vertebrochondral ribs; and the last two pairs have…

The adult column is counted as seven cervical vertebrae in the neck, twelve thoracic vertebrae bearing the ribs, five lumbar vertebrae in the lower back, one sacrum and one coccyx, giving twenty-six bones in all.

It is the innermost of the three ear ossicles of the middle ear and is shaped like a stirrup; it passes vibrations from the incus to the oval window of the inner ear and is the smallest bone of the body.

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.