Defence GK Questions 2026

Mitochondria carry their own small, circular DNA and their own ribosomes. Mitochondria are the powerhouses of the cell, where aerobic respiration makes ATP.

The United Nations marks 12 August every year as International Youth Day. The UN General Assembly endorsed the day in 1999, on the recommendation of the World Conference of Ministers Responsible for Youth held in Lisbon in 1998, and it was first observed in 2000.

. The American federation is called "an indestructible union of indestructible states", a phrase from the US Supreme Court's judgment in Texas v. White (1869).

The INA drew its soldiers largely from Indian prisoners of war held by Japan, and Bose created the Rani of Jhansi Regiment for women.

All three are underground modified stems: the potato is a stem tuber, and onion and garlic are bulbs. A stem can be told from a root by its nodes and buds.

A wave moves forward by one wavelength in each cycle, so 150 wavelengths take 150 cycles, and 150 cycles at 300 per second take half a second.

A floating body is in equilibrium, so the upward buoyant force exactly balances its weight. By Archimedes' principle, a body in a liquid is pushed up by a force equal to the weight of the liquid it displaces.

These are the three main divisions of the human brain. The fore brain is the largest part.

x86 and MIPS assembly are low-level languages written for particular processor families, while Python and Java are high-level languages. An assembly language uses short mnemonics such as MOV, ADD and JMP that stand directly for a processor's machine instructions, so each family of processors has its own.

Lithium hydrogen carbonate exists only in solution; it cannot be isolated as a solid. All the alkali metals of group 1 form hydrogen carbonates (bicarbonates), but lithium behaves differently from the rest.

Pure water is neutral, and a neutral solution has a pH of 7 at 25 °C. pH is the negative logarithm of the hydrogen ion concentration.

Ultraviolet photons carry more energy than visible light, not less, so this statement is wrong. The energy of a photon is E = hc/λ, so a shorter wavelength means higher energy.

Both statements are true, but the direction in which the Earth spins does not explain why tides occur. Tides are caused mainly by the Moon's pull, with the Sun adding a smaller pull; the Moon's tide-raising force is roughly twice the Sun's because it is so much closer.

Carrying water and food through the plant is the main job of the stem's vascular tissue, not of the leaf.

cVIGIL is the Election Commission of India's app for citizens to report poll-code violations. The name stands for vigilant citizen.

Quo Warranto lies only when the appointment breaks the law; an appointment in tune with a statutory provision gives the court nothing to correct.

The pituitary is a single, pea-sized gland at the base of the brain, while the other three come in pairs.

For Quo Warranto the office must be a substantive one, so saying it must not be substantive is not a condition at all.

The French doctor François Bernier served as physician to Dara Shikoh, Shah Jahan's eldest son. Bernier reached India in 1658, in the middle of the war of succession among Shah Jahan's sons.

Intercalary meristem lies between mature tissues, at the base of leaves and of internodes. Meristems are tissues whose cells keep dividing.