NDA GK Questions 2026

Nomadic Elephant is the bilateral army exercise held by India and Mongolia. The exercise began in 2004 and is held by turns in India and Mongolia, the venue alternating between the two countries.

Salt crystal growth breaks rock by pressure alone, without changing its minerals, so it is a type of physical (mechanical) weathering.

When oxygen runs short during hard exercise, muscle cells break glucose down anaerobically, and lactic acid is the by-product. In glycolysis, which takes place in the cytoplasm, one molecule of glucose splits into two molecules of pyruvate and yields a little ATP.

Both statements are true, and the magnetic field set up by the current (Statement II) is exactly why the compass needle turns (Statement I).

The pancreas pours amylase, trypsin and lipase into the duodenum in its juice, so all three classes of food are digested there.

Lymph is plasma that has leaked out of the capillaries, and red blood cells are too large to pass through the capillary walls.

Urea is the form in which the body gets rid of the nitrogen left over when amino acids from proteins are broken down.

During the visit tied to the Joint Working Group meeting, the Indian delegation went to Mongolia's National Defence University and examined how the Cyber Security Training Centre, established there with Indian assistance, is functioning.

At the fourteenth Joint Working Group meeting in Ulaanbaatar, both delegations appreciated the successful conclusion of this exercise and treated it as evidence of how firmly the two armies have built their cooperation.

The fourteenth meeting of the Joint Working Group between the defence ministries of India and Mongolia took place in Ulaanbaatar, the Mongolian capital, on 16 October 2026, where the two delegations reviewed their running defence cooperation activities and identified new areas to work in.

A temperature in kelvin is the Celsius temperature plus 273 (more exactly 273.15). The Kelvin and Celsius scales have degrees of the same size, so a change of 1 °C equals a change of 1 K; only their zero points differ.

Common fertilisers supply nitrogen, phosphorus and potassium (NPK); iron is a micronutrient that is usually not part of them. Plants need nitrogen, phosphorus and potassium in large amounts, so these are called primary macronutrients, and fertilisers such as urea, DAP, MOP and NPK mixtures are made to supply them.

Litmus is a natural dye extracted from certain lichens, especially species of Roccella. A lichen is a partnership between a fungus and an alga (or a cyanobacterium): the alga makes food by photosynthesis, while the fungus gives shelter and absorbs water and minerals.

An ammeter measures the electric current flowing in a circuit, in amperes. An ammeter is always connected in series with the part of the circuit whose current is to be measured, so that the whole current passes through it.

By origin, resources are either biotic, which come from living things, or abiotic, which come from non-living things. Biotic resources are obtained from the biosphere and have life: plants, animals, fish, livestock and human beings.

The ozone hole is a sharp seasonal thinning of the stratospheric ozone layer over Antarctica, caused mainly by chlorine from chlorofluorocarbons.

If you hold a current-carrying straight wire in your right hand with the thumb pointing along the current, your curled fingers show the direction of the magnetic field lines around it.

Potassium and barium exchange their partner ions: K₂SO₄ and BaCl₂ swap ions to give KCl and BaSO₄. In a double displacement reaction two compounds exchange ions.

Statements 1 and 2 are correct; statement 3 is wrong because zinc is more reactive than iron.

Too little fluoride weakens tooth enamel and makes teeth prone to decay, known as dental caries. Fluoride becomes part of the enamel as fluorapatite, which resists the acids made by mouth bacteria from sugars.