CDS GK Questions 2026

Statements 1 and 3 describe real differences; statement 2 gets the life span backwards. A sodium vapour lamp is a glowing tube that sends light out in all directions, through 360 degrees, so reflectors are needed to push the light down onto the road and some light is wasted.

Both reports dealt with how to protect the fragile Western Ghats, a global biodiversity hotspot.

India's GM mustard, Dhara Mustard Hybrid-11 (DMH-11), is built for hybrid seed production, not pest resistance. It carries the barnase and barstar genes taken from the soil bacterium Bacillus amyloliquefaciens.

Bhilsa and Girinagar are matched correctly; Dwarasamudra and Sthanesvara are not. Bhilsa is the old name of Vidisha in Madhya Pradesh, near Sanchi, where the Heliodorus pillar stands.

Statement 1 has both genomes wrong, while statement 2 is a correct fact. Adenoviruses carry a double-stranded DNA genome.

India is a member of all three groupings. India is a founding member of the Asian Infrastructure Investment Bank, which began work in 2016 with its headquarters in Beijing; India is its second-largest shareholder after China.

The Nature Restoration Law is a regulation of the European Union, adopted by its Parliament and Council in 2024. It is part of the European Green Deal and the EU Biodiversity Strategy for 2030.

When a wire is stretched its volume stays the same, so the length must grow in the same ratio as the cross-sectional area shrinks.

Cache memory is small and very fast, but it is the most expensive memory per byte after the CPU registers, so statement 2 is wrong.

In parallel the equivalent resistance is always smaller than the smallest single resistor, so here it falls below 1 Ω. For resistors in parallel, 1/R = 1/R1 + 1/R2 + 1/R3 = 1/1 + 1/2 + 1/3 = 11/6, so R = 6/11 Ω, about 0.55 Ω. Each extra parallel…

Dhaka, famous for its fine muslin, lost its trade and population after the mid-eighteenth century as the East India Company's rule and cheap British cloth destroyed its textile industry.

A bus is the shared set of electrical lines on the motherboard that carries data, addresses and control signals between the CPU, memory and input-output devices.

SONAR sends out pulses of high-frequency sound, above 20 kHz, which travel well through water and bounce back from objects.

Lithuania is a Baltic state to the north of Belarus, and Belarus lies between it and Ukraine, so the two never touch.

NLP is the branch of artificial intelligence that lets computers understand, interpret and produce human language. Artificial intelligence covers systems that perform tasks normally needing human intelligence, such as learning, reasoning and understanding speech or text.

The investment multiplier equals 1 ÷ (1 − MPC), so the smaller the share of extra income people spend, the smaller the multiplier.

Tax Inspectors Without Borders is a joint initiative of the United Nations Development Programme and the Organisation for Economic Co-operation and Development.

Released by IBM in 1957, Fortran is the oldest of the four and is often called the first widely used high-level programming language.

When calcium carbide reacts with water it gives acetylene (ethyne) gas and calcium hydroxide, not hydrogen. The reaction CaC₂ + 2H₂O → C₂H₂ + Ca(OH)₂ is the old method of making acetylene, once burnt in miners' lamps and still used for welding and for ripening fruit illegally.

The quantity demanded falls by 50% while the price rises by 50%, and 50 divided by 50 gives a price elasticity of 1.