State Exams GK Questions 2026

When a body rolls, the surfaces in contact change continuously and the irregularities have no time to interlock deeply, so rolling friction is very much smaller than sliding friction; this single fact is the reason the wheel was invented and the reason a ball bearing is fitted wherever a shaft…

The coefficient of friction is the ratio of the limiting or kinetic frictional force to the normal reaction, and since both are forces the ratio is a pure number; the same reasoning applies to other ratios such as the refractive index and relative density.

Friction is defined as the force that opposes the relative motion, or the tendency of relative motion, between two surfaces in contact; it acts along the surfaces and always against the direction of motion.

. The Act of 1919 did not make the Central Executive responsible to the Legislature; the Governor-General and his Executive Council stayed answerable only to the British Parliament.

. Under MPLADS an MP only recommends works; the district authority sanctions, executes and completes them.

The Moderates never demanded universal adult franchise; they asked only for a larger share for educated Indians in the legislative councils.

Annie Besant founded the Central Hindu College (with its school) at Benaras in 1898, and it later became the nucleus of Banaras Hindu University.

Statements 1 and 3 are correct; statement 2 is wrong because the woman surrounded by lotuses and elephants is a different figure, usually identified as Gajalakshmi or Maya.

The Occupational Safety, Health and Working Conditions Code, 2020 brought together the Factories Act, 1948, the Plantations Labour Act, 1951 and other laws on safety and working conditions.

Only statement 3 is correct: the acid must be added slowly to water, and dilution lowers the concentration of hydronium ions per unit volume.

Nattar does not mean a male serpent deity; the nattar were the members of the nadu, the assembly of a group of villages in early medieval Tamil Nadu.

These are cirrocumulus clouds: high clouds of ice crystals arranged in small white puffs and ripples. Clouds are grouped by height and shape.

. The National Recruitment Agency was created to hold a Common Eligibility Test to shortlist candidates for Group B and Group C (non-technical) posts of the Central Government.

. Hariti was a child-eating yakshi whom the Buddha converted into a protector of children and a benevolent mother figure.

Gandhiji regarded Gopal Krishna Gokhale as his political guru, his Rajya Guru. Gandhi first met Gokhale in 1896 and they grew close when Gokhale visited South Africa in 1912.

A wider deficit financed by borrowing tends to push up inflation and interest rates, and higher interest rates can slow private investment.

Planck's constant has the same dimensions as angular momentum, [M L² T⁻¹].

. Statement D is the incorrect one: the streams on a dissected volcanic cone do form a radial drainage pattern.

Biogas is mainly methane and carbon dioxide. Biogas is produced when bacteria break down animal dung, crop waste and kitchen waste in the absence of oxygen, a process called anaerobic digestion.

Adiabatic temperature changes in the atmosphere are caused by the expansion and compression of air, with no heat added or removed.