RBI GK Questions 2026

UCO Bank is headquartered at Kolkata and is the public sector bank most often asked about in connection with that city; its tagline is Honours Your Trust.

Punjab National Bank is headquartered at New Delhi, as is Punjab and Sind Bank, so both the public sector banks with Punjab in their names are based in the capital rather than in the state.

India's International Bank is the line by which Bank of Baroda is best known, and it reflects the bank's long presence in overseas markets.

Bank of Baroda has its head office at Vadodara in Gujarat, the city formerly called Baroda, from which the bank takes its name, and that link between the name and the city is the simplest way to remember the fact.

The Reserve Bank of India has had its central office at Bombay, now Mumbai, since 1937, and it has stayed there ever since.

A coaxial cable is built around a single solid or stranded copper wire at the axis, which carries the signal.

Infrared lies just below visible light in frequency, and like visible light it is stopped by an ordinary wall.

Transmission media fall into two families. A guided or bounded medium confines the signal to a solid conductor or light pipe, and the three guided media are twisted pair, coaxial cable and optical fibre.

A computer works with digital signals, a series of ones and zeros, while an ordinary telephone line was built to carry an analog voice signal.

The RJ-45 is the eight-position modular plug crimped on to the end of an unshielded twisted pair cable of category 5e or 6 and pushed into the network port of a computer, switch or router.

A walkie-talkie allows both parties to speak and both to listen, so communication is two-way, but the set has a single push-to-talk switch and one person must release it before the other can be heard.

Electromagnetic interference acts on moving charge, so any medium that carries a signal as an electric current can pick up noise from motors, fluorescent lamps, lightning and nearby cables.

The fibre has a core of higher refractive index surrounded by a cladding of lower refractive index. Light that enters the core and meets the boundary at an angle greater than the critical angle is reflected entirely back into the core, with none of it refracted away into the cladding.

In frequency division multiplexing each channel is given its own slice of the frequency band, and a small unused strip called a guard band is left between two neighbouring channels so that one does not spill into the next.

At the transmitting end of a fibre link the electrical signal must be turned into light, and the two devices that do it are the light-emitting diode and the laser diode.

An optical fibre carries information as pulses of light, not as an electric current, so its core and cladding must be transparent and not conducting.

In his Principles of Economics he defined consumer surplus as the difference between what a buyer is willing to pay for a good and what he actually pays, and he also gave the standard measure of elasticity of demand, which is why his name attaches to both ideas.

A duopoly is the limiting case of oligopoly in which only two firms supply the whole market, so each one frames its price and output with a direct eye on the other.

A monopoly is a market with one seller whose product has no close substitute, so the firm is the industry and is a price maker: it chooses the price and lets the market decide the quantity, or the reverse.

The market clears where the demand and supply curves cut each other, that is where the quantity buyers wish to buy is exactly the quantity sellers wish to sell; the price there is the equilibrium price and the quantity the equilibrium quantity.