Today’s GK Test Quiz

Pulmonary Vein brings clean blood from the lungs into the heart. Its function is to transport oxygenated blood from the lung alveoli into the left atria.

Birds which swim in water have webbed feet. Ducks, geese, and swans all have webbed feet. The primary use for webbed feet is paddling through the water.

Transboundary pollution is the pollution that originates in one country but is able to cause damage to another country's environment, by crossing borders through pathways like water or air. It is caused by a chemical reaction that begins when compounds like sulphur dioxide (SO₂) and nitrogen oxides (NO_x) are released into the air. Acid rain is an example of Transboundary pollution.

Pyrex glass is a variety of heat-resistant glass. Pyrex contains borosilicate and expands only about one-third as much as common glass (silicate) when heated. As a result, it is less apt to break when subjected to rapid temperature changes. Flint glass is optical glass that has relatively high refractive index and low Abbe number.

Denatured spirit is ethanol mixed with Pyridine. It is ethanol that has additives to make it poisonous, bad-tasting, foul-smelling, or nauseating to discourage its recreational consumption.

Tear gas is a chemical compound that causes temporary skin, respiratory, and eye irritation. Chloropicrin (CCl₃NO₂) is one of the constituents of tear gas. Chloropicrin has been used in chemical warfare and as tear gas.

Mortar is a material used in building construction to bond brick, stone, tile, or concrete blocks into a structure. It is a mixture of water, sand and slaked lime. Slaked lime (Hydrated lime) formed by adding quick lime and water gives a slurry material.

Wax used for making candles is chemically a mixture of aliphatic hydrocarbons. This means that it's composed of compounds with a carbon backbone and hydrogen atoms that dangle off of the backbone. An aliphatic compound or aliphatic hydrocarbon contains hydrogen and carbon atoms linked together in straight chains.

The equatorial circumference of Earth is about 40,075 km. However, the meridional circumference (from pole to pole) is about 40,008 km.

The President of the Union of India occupies the same position as the King under the English Constitution. He is the head of the state but not of the Executive. He represents the Nation but does not rule the Nation.

NationCal Mineral Development Corporation (NMDC) is a Navratna Company. The Navratna Companies are Public Sector Enterprises (PSEs) that can invest up to ₹. 1000 crore or 15% of their net worth on a single project without seeking approval from the government. List of Navratna Companies: BEL, CCIL, EIL, HAL, MTNL, NALCO, NBCC, NMDC, NLCIL, OIL, PFC, RINL, REC and SCI.

The fourth Five-Year Plan was from 1969 to 1974. It targeted achieving self-reliance through progressive movement and achieving stable growth. During the implementation of this plan, then Prime Minister Indira Gandhi called the slogan 'GARIBI HATAO'.

Per capita income (PCI) is a measure of the amount of money earned per person in a nation or geographic region. It is calculated by dividing the national income by its total population.

Kakori Train Robbery took place at Kakori, a village near Lucknow, on 9 August 1925. The robbery was organised by Hindustan Republican Association.

The national anthem of india “Jana Gana Mana” was first published under the title “Bharat Vidhata” in Tattva Bodhini Patrika in January 1912.

Metals are good conductors of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely.

A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 km directly over the equator, that revolves in the same direction the earth rotates (west to east). At this altitude, one orbit takes 24 hours, the same length of time as the earth requires to rotate once on its axis. So they seem stationary, relative to the Earth's surface.

All objects, regardless of mass, will fall at the same rate. Heavier things have a greater gravitational force AND heavier things have a lower acceleration. It turns out that these two effects exactly cancel to make falling objects have the same acceleration regardless of mass.

Cartography is the method through which maps are studied, created and designed. A confluence between practice, science, and art, cartography guides the principles and practical standards behind maps and map-making.

The Statue of Liberty was a gift from the French people commemorating the alliance of France and the United States during the American Revolution.