Defence GK Questions 2026

The horsepower is an older practical unit of power that survives in the rating of engines, pumps and motors, and it equals about 746 watts.

The mole is the chemist's counting unit: one mole of any substance contains the Avogadro number of particles, about six followed by twenty-three zeros, whether those particles are atoms, molecules or ions.

A barometer measures the pressure of the atmosphere, traditionally by balancing it against a column of mercury. It is also used for forecasting weather, because a sudden drop in pressure signals an approaching storm, and for finding altitude, since pressure falls as one rises.

Work is force multiplied by displacement. Force has the dimensions M L T⁻², and multiplying it by a length adds one more power of L, which gives M L² T⁻².

Pressure is force divided by area, so its unit is one newton per square metre, which is given the name pascal after Blaise Pascal.

A light year is the distance that light, moving at about three lakh kilometres per second, covers in one year, which works out to roughly 9.46 trillion kilometres.

The candela takes its name from the candle, which was once used as a rough standard of light, and it is one of the seven base units of the SI system.

The newton is a derived unit: it is built from the kilogram, the metre and the second, since force equals mass times acceleration, and it can be written as one kilogram metre per second squared.

The SI system, adopted in 1960 by the General Conference on Weights and Measures, rests on seven base units: the metre, the kilogram, the second, the ampere, the kelvin, the mole and the candela.

One newton is the force that gives a mass of one kilogram an acceleration of one metre per second squared, which follows directly from the equation force equals mass times acceleration.

Newton's second law gives force = mass × acceleration. Mass has the dimension [M], and acceleration is velocity divided by time, that is [L T⁻¹] ÷ [T] = [L T⁻²].

The release lists VBSS among the Special Forces drills carried out in the sea phase of SLINEX-26, along with slithering operations.

The Ministry of Defence described the exercise held from 17 to 21 September 2026 as the 13th edition of the India-Sri Lanka bilateral maritime exercise, and it concluded at Visakhapatnam.

SLINEX is the bilateral maritime exercise held between the Indian Navy and the Sri Lanka Navy, and its name itself is formed from the two countries.

The Ministry of Defence release states that the Japan Air Self Defense Force participated in the exercise with the F-2A fighter aircraft, while the Indian Air Force deployed a mix of the Su-30 MKI, the Rafale and the indigenous Light Combat Aircraft Tejas.

Veer Guardian is the bilateral air exercise between the Indian Air Force and the Japan Air Self Defense Force, and the release describes the drill as strengthening the strategic partnership between the two air forces of India and Japan.

The Ministry of Defence stated that the bilateral air exercise between the Indian Air Force and the Japan Air Self Defense Force concluded at Air Force Station Jodhpur, and it was also at Jodhpur that the two air chiefs came for Distinguished Visitor's Day and flew the indigenous Tejas.

The 2026 Asian Games, the 20th edition, are being held in the Japanese cities of Aichi and Nagoya.

Suchika Tariyal won bronze in mixed martial arts at the Asian Games 2026, and the Prime Minister described it as a historic achievement because it is India's first-ever Asian Games medal in that field.

On 22 September 2026 India's women won the cricket gold at the Asian Games, and the Prime Minister noted that it was the country's first gold of this edition of the Games.