RRB Group D GK Questions 2026

He was the last of the Mauryas and was killed about 185 BCE by his own commander-in-chief Pushyamitra Sunga, who then founded the Sunga dynasty with its capital at Pataliputra.

Almost all of Ashoka's inscriptions call him only Devanampiya Piyadasi, the beloved of the gods, of amiable appearance.

In the Arthashastra the Samaharta is the officer in charge of assessing and collecting the revenue of the realm from land, mines, forests, trade routes and city dues, and of keeping the accounts of income and expenditure on which the state ran.

The Sarnath capital has four lions standing back to back on an abacus that carries an elephant, a bull, a horse and a lion separated by wheels, the whole resting on an inverted lotus.

Prinsep, an official of the mint at Calcutta and secretary of the Asiatic Society, worked out the values of the Brahmi letters in 1837 and so made Ashoka's edicts readable.

It is the longest of the fourteen major rock edicts and the only source in Ashoka's own words for the war on Kalinga, the number of people killed, deported and dead of other causes, and the remorse that turned him from conquest by arms to conquest by Dhamma.

After the treaty of about 305 BCE between Chandragupta Maurya and Seleucus Nicator, the Greek ruler sent Megasthenes to Pataliputra as his ambassador.

In summer, as the subtropical westerly jet withdraws to the north of the plateau of Tibet, an easterly jet stream forms in the upper air over peninsular India and blows from east to west.

Strong heating at the equator makes the air expand and rise, so surface pressure is low and horizontal winds are weak; sailing ships were often becalmed there.

It is a cold, dry and often violent wind that blows from the north down the Rhone valley of southern France to the Gulf of Lion, chilling the coast and damaging crops, which is why orchards there are protected by lines of trees and walls.

It states the deflection produced by the rotation of the earth, the Coriolis effect, which turns every freely moving body to the right of its path in the northern hemisphere and to the left in the southern.

It is a strong, hot and dry wind that blows during the day over the plains of north India and Pakistan in the peak of summer, raising temperatures sharply and causing heat stroke, and it dies down after sunset.

The wind is the Chinook. It descends the leeward slope, is compressed and warmed as it sinks, and can raise the temperature sharply in a few hours; it melts or evaporates the snow cover, which is why herders call it the snow eater and why it is valued for exposing…

It is comparatively inert, so it dilutes oxygen and slows combustion, and it enters living things mainly through the nitrogen cycle in which bacteria fix it in a usable form.

Although the air there is thin, it is dense enough to heat a body moving at cosmic speed by friction, so most meteors glow and are destroyed in this layer and are seen from the ground as shooting stars.

This is the average rate at which air temperature falls as one rises through the troposphere, and it explains why hill stations are cooler than the plains and why high peaks carry snow even in the tropics.

Ozone is concentrated in the lower and middle stratosphere, and because it absorbs ultraviolet radiation the temperature of this layer rises with height instead of falling.

If each length of a solid grows by a certain small fraction when it is heated, an area, which is the product of two lengths, grows by about twice that fraction, and a volume, the product of three lengths, by about three times.

An adiabatic change is one in which no heat is exchanged with the surroundings.

A cooker is sealed, so the steam it produces cannot escape and the pressure inside rises. Since the boiling point of a liquid rises with the pressure on it, water in a cooker boils well above a hundred degrees Celsius, and food cooking at that higher temperature is ready sooner.