SSC MTS GK Questions 2026

An iron, toaster, oven, kettle and heater all turn electrical energy into heat when current flows through a coil of high resistance.

A concave lens spreads the light rays slightly before they enter the eye, so the image moves back onto the retina.

Adrenaline is made by the adrenal glands, which sit like caps on top of the two kidneys. It is released in fear, anger or sudden danger, so it is called the "fight or flight" hormone.

The nucleus is called the master or control centre of the cell because it directs all the activities of the cell.

Brass is an alloy of copper and zinc, usually about 70 per cent copper and 30 per cent zinc. Adding zinc makes brass harder than pure copper, gives it a golden-yellow shine and helps it resist corrosion.

Bleaching powder gives off chlorine when it reacts with water, and this chlorine does the bleaching and kills germs. Bleaching powder is calcium oxychloride, CaOCl2, made by passing chlorine gas over dry slaked lime, Ca(OH)2.

Carbon dioxide reacts with lime water to form calcium carbonate, which does not dissolve, and its fine white particles make the water look milky.

Vitamin K is needed to make the clotting proteins, so without it even a small cut keeps bleeding. The liver uses vitamin K to make prothrombin and other clotting factors that turn blood into a clot at a wound.

The medulla oblongata is the breathing centre of the brain, which is why we keep breathing even while asleep. It is the lowest part of the hindbrain and joins the brain to the spinal cord.

The Great Stupa at Sanchi, in the Raisen district of Madhya Pradesh, is one of the oldest Buddhist monuments in India.

Ghoomar is a folk dance of Rajasthan performed by women in long, flared skirts called ghaghras, who spin gracefully in circles.

Bihu is the chief festival and folk dance of Assam. The dance is performed by young men and women in groups to the beat of the dhol and the pepa, a pipe made of buffalo horn, with quick steps and graceful hand movements.

Pochampalli, also written Pochampally, is a weaving town in the Yadadri Bhuvanagiri district of Telangana, not far from Hyderabad. It is famous for ikat sarees, in which the threads are tied and dyed before weaving, so the pattern appears as the cloth is woven.

A johad is a small crescent-shaped earthen dam that villagers build together to catch and store rainwater. It is used mainly in Rajasthan and Haryana, where rain is scarce and falls in only a few months of the year.

The United Nations General Assembly named 5 June as World Environment Day in 1972, and the day has been observed every year since 1974.

Sulphur dioxide and nitric oxide are the gases behind acid rain. When coal, petrol and diesel are burnt in power plants, factories and vehicles, they release sulphur dioxide and oxides of nitrogen such as nitric oxide.

At great heights the air is thin, so the atmospheric pressure acting on the body is much lower than at sea level.

Bronze is made by melting copper and tin together, with copper as the main metal. It is harder than pure copper and does not corrode easily, so it has been used for statues, bells, medals and utensils for thousands of years.

All three are needed by plants only in very small amounts, which makes them micronutrients. Plants need macronutrients in large amounts: nitrogen, phosphorus and potassium as primary nutrients, and calcium, magnesium and sulphur as secondary ones.

Of the three, only citrus canker is caused by bacteria; rust of wheat is caused by a fungus and yellow vein mosaic of bhindi by a virus.