Useful Questions For Competitive Exams

The President of India is elected by an Electoral College comprising elected members of both houses of Parliament (Lok Sabha and Rajya Sabha) and elected members of State Legislative Assemblies. Nominated members are excluded from this process.

Uttar Pradesh has the largest number of Lok Sabha seats (80) due to its highest population among all Indian states. This is based on the principle of proportional representation.

Tamralipti (modern Tamluk in West Bengal) was a major port city and the most important centre of maritime trade during the Gupta period. It connected India to Southeast Asian trade routes.

Guru Nanak Dev, the founder of Sikhism, was born in 1469 at Rai Bhoi Ki Talwandi (now Nankana Sahib in present-day Pakistan). He lived until 1539, traveling extensively to spread his teachings of equality and devotion.

The Chinese Buddhist monk Fahien (also spelled Faxian) visited India from approximately 399-411 AD during the reign of Chandragupta II of the Gupta Empire. He came to collect Buddhist scriptures and visit holy sites.

Tokyo has been the capital of Japan since 1868, when the imperial family moved from Kyoto to Edo (renamed Tokyo). It is Japan's political, economic, and cultural center, as well as its most populous city.

Neptune is the farthest known planet from the Sun in our solar system, at an average distance of about 4.5 billion kilometers (30 astronomical units). It is an ice giant with a thick atmosphere of hydrogen, helium, and methane.

Myanmar, formerly known as Burma, gained independence from Britain in 1948. The military government officially changed the country's name to Myanmar in 1989, though many governments and organizations continue to use both names.

Razia Sultan (also called Razia Begum or Razia Sultana) was the first and only female ruler of the Delhi Sultanate. She ruled from 1236 to 1240 AD, succeeding her father Iltutmish, and was known for her administrative skills and preference for male attire.

The Ajanta Caves, a UNESCO World Heritage Site, are located in Aurangabad district of Maharashtra. These 30 rock-cut Buddhist cave monuments date from the 2nd century BCE to about 480 CE and contain magnificent paintings and sculptures.

Vande Mataram, composed by Bankim Chandra Chattopadhyay in 1875, is India's National Song. It should not be confused with Jana Gana Mana, which is the National Anthem. The song was a source of inspiration during the Indian independence movement.

Aphelion is the point in Earth's orbit where it is farthest from the Sun, occurring around July 4 each year. At aphelion, Earth is about 152 million kilometers from the Sun. Perihelion (closest approach) occurs in early January.

Scottish bacteriologist Alexander Fleming discovered penicillin in 1928 at St. Mary's Hospital in London. He observed that the Penicillium fungus had antibacterial properties, revolutionizing medicine and earning the 1945 Nobel Prize.

Florence Nightingale, the founder of modern nursing, was called 'The Lady with the Lamp' after her habit of making rounds at night with a lamp to tend wounded soldiers during the Crimean War (1853-1856). Her pioneering work established nursing as a respected profession.

Guntur is a major city located in the state of Andhra Pradesh in southeastern India. It is an important commercial and educational center in the region, known for its chili markets and agricultural productivity.

Transformers work on the principle of electromagnetic induction, which requires a changing magnetic field. This is why transformers only function with alternating current (AC), allowing voltage to be stepped up or down. DC voltage cannot be transformed directly - it requires electronic converters.

Convex lenses are converging lenses that bring light rays to a focus. Long sightedness (hypermetropia) occurs when the eyeball is too short or the lens too weak, causing images to focus behind the retina. A convex lens adds focusing power to bring images forward onto the retina. Short sightedness requires concave (diverging) lenses instead.

A pressure cooker seals steam inside, raising the internal pressure. Higher pressure increases the boiling point of water above 100°C. Food cooks at this higher temperature, which transfers heat faster and reduces cooking time significantly.

Genghis Khan (Changez Khan) was the founder and first Great Khan of the Mongol Empire, which became the largest contiguous land empire in history. He was born in modern-day Mongolia and was ethnically Mongol, not Turk or Persian.

The Jallianwala Bagh Massacre occurred on April 13, 1919, when British troops fired on unarmed Indian civilians in Amritsar. Lord Chelmsford was the Viceroy of India at that time (1916-1921). Lord Canning was much earlier (1856-1862), while Lord Ripon and Willingdon served later.

The Palk Strait is a narrow stretch of water between the Tamil Nadu coast of India and the northwest coast of Sri Lanka. It connects the Bay of Bengal to the northeast with the Palk Bay to the south. The strait is named after Robert Palk, a governor of Madras Presidency.

Saint Dadu (Dadu Dayal) was a 16th-century saint from Gujarat who preached a non-sectarian form of devotion. He emphasized the unity of God and rejected ritualistic religious divisions. His followers were known as Dadu Panthis. Tukaram was from Maharashtra, Ramanand from North India, and Raghunandan was from Bengal.

The Beighton Cup is one of the oldest field hockey tournaments in the world, started in 1895 in Kolkata. It is named after T.D. Beighton, a former president of the Indian Hockey Association. It remains a prestigious domestic hockey competition in India.

Railway coaches in India are primarily manufactured at the Integral Coach Factory (ICF) in Chennai and the Rail Coach Factory (RCF) in Kapurthala, neither of which are listed in the options.