RRB NTPC GK Questions 2026

On these days the sun, the moon and the earth lie in a straight line, a position called syzygy, so the pulls of the sun and the moon act together and the tidal range is at its greatest; spring tides therefore occur twice in a lunar month and have nothing…

It is the gently sloping, shallow margin of the continent, extending to a depth of about 200 metres with a gradient of one degree or less and an average width of about seventy to eighty kilometres, and it makes up roughly 7.5 per cent of the ocean area.

The correct answer is B, the Mariana Trench, in the western Pacific Ocean, whose Challenger Deep reaches a depth of about eleven kilometres and is the deepest known point on the earth's surface.

Statement I is wrong because the equatorial belt receives very heavy rainfall and has high cloud cover, so the surface water there is diluted; the highest salinity in the open ocean is recorded in the subtropical high pressure belts, roughly between twenty and thirty degrees of latitude, where skies are…

While the ice floats it displaces a volume of water whose weight equals the weight of the ice, by the law of flotation.

In a liquid, viscosity comes chiefly from cohesion between molecules; heating weakens that cohesion, so the layers slide past one another more easily and the viscosity falls, which is why engine oil becomes thinner as the engine warms and why honey flows freely when it is warmed.

Cohesive forces pull the molecules at the surface of a liquid inward, so the surface behaves like a stretched membrane and takes the smallest area that can enclose the given volume; for a fixed volume the shape of least surface area is a sphere, which is why a free drop…

The correct answer is B, pascal second, equal to a newton second per square metre, which follows from Newton's law of viscosity, where the shearing stress in pascals is divided by the velocity gradient in reciprocal seconds.

Pascal's law says that pressure applied to an enclosed fluid is transmitted undiminished to every part of the fluid and to the walls of the vessel, so a modest push on the brake pedal creates a pressure in the brake fluid that is passed to the wider pistons at every…

In a capillary tube the height of rise is directly proportional to the surface tension of the liquid and inversely proportional to its density and the radius of the tube.

In such a fluid the shearing stress is directly proportional to the rate of shear, so the coefficient of viscosity, which measures the resistance to deformation, keeps the same value whatever the stress applied; water, air, petrol and thin oils behave in this way.

The upthrust on a body is the resultant of the pressure forces of the fluid around it, and that resultant acts through the centre of gravity of the fluid the body has pushed aside, which is why the point is called the centre of buoyancy.

A floating body displaces its own weight of fluid, so the fraction of its volume that lies below the surface equals the ratio of its density to the density of the fluid, here 920 divided by 1000, which is 0.92.

By Archimedes' principle the upthrust on a body equals the weight of the fluid it displaces, and that weight is the volume of the body actually immersed multiplied by the density of the fluid and by the acceleration due to gravity.

The Vice-President traced the institution’s journey from a Sanskrit Vidyapeetha to a Central University and said the time had come for it to fulfil its founder’s vision by establishing itself as a leading international centre for Sanskrit studies.

The mission is meant to preserve and document India’s manuscript heritage and to bring it within reach of readers in the country and abroad, and the Vice-President cited it while asking teachers and students to seek out unpublished Sanskrit manuscripts, preserve them, edit them critically and publish them.

The Vice-President praised the university for securing it and for carrying out research across the many domains of the Indian knowledge tradition, and he urged the institution to go further and become a leading international centre of excellence for Sanskrit studies.

The Union Minister of that ministry, Dr Mansukh Mandaviya, announced it with the remark that Yuva Shakti is the strength of a developed India.

The copy handed over is hardbound and carries the signature of the Minister of State for Youth Affairs and Sports.

At that count the portal carries the achiever in a dedicated Digital Hall of Fame, showing the name, the MY Bharat identity number, a photograph and a short profile taken from the public profile.