MP Police GK Questions
61. Which gas is filled in balloons to make them fly?
A) Oxygen
B) Nitrogen
C) Helium
D) Hydrogen
C) Helium
Explanation: Helium is used to fill balloons because it is lighter than air and non-flammable, making it safe for use in flying balloons.
62. Which are the primary colors?
A) Red, Blue, Green
B) Red, Yellow, Blue
C) Green, Yellow, Blue
D) Orange, Blue, Green
B) Red, Yellow, Blue
Explanation: The primary colors are Red, Yellow, and Blue. These are the colors that cannot be created by mixing other colors, and they are used to create all other colors in the spectrum.
63. What is the device called that converts chemical energy into electrical energy?
A) Generator
B) Battery
C) Transformer
D) Capacitor
B) Battery
Explanation: A battery is a device that converts chemical energy into electrical energy through electrochemical reactions. It powers electrical devices by providing electricity.
64. What did Alexander Fleming discover?
A) X-rays
B) Penicillin
C) Radioactivity
D) DNA
B) Penicillin
Explanation: Alexander Fleming discovered Penicillin in 1928. It was the world’s first antibiotic, and its discovery revolutionized the treatment of bacterial infections.
65. What is the Sun?
A) A planet
B) A satellite
C) A star
D) A comet
C) A star
Explanation: The Sun is a star located at the center of our solar system. It is a massive ball of hydrogen and helium gases undergoing nuclear fusion, producing the light and heat essential for life on Earth.
66. Who authored “Indica”?
A) Megasthenes
B) Fa-Hien
C) Hiuen Tsang
D) Pliny
A) Megasthenes
Explanation: “Indica” was written by the Greek ambassador Megasthenes, who visited India during the reign of Chandragupta Maurya. His book provides a detailed account of Indian society, politics, and culture at that time.
67. In which year did Mahatma Gandhi undertake the Dandi March?
A) 1919
B) 1929
C) 1930
D) 1942
C) 1930
Explanation: The Dandi March, also known as the Salt March, was led by Mahatma Gandhi in 1930 as part of the civil disobedience movement against British salt laws.
68. If the barometer reading appears to fall, it is a sign of what?
A) Good weather
B) Rainfall
C) Strong winds
D) Storm
D) Storm
Explanation: A falling barometer reading indicates a decrease in atmospheric pressure, which is often a sign of an approaching storm or bad weather.
69. Who was the founder of Jainism?
A) Mahavira
B) Rishabdev
C) Guru Nanak
D) Adi Shankaracharya
B) Rishabdev
Explanation: Rishabhanatha, or Rishabhdev, is the first Tirthankara in Jainism and is traditionally considered its founder. He established the foundational principles of Jainism, predating Mahavira, who later revitalized the religion.
70. Under which tree did Gautama Buddha attain enlightenment in Bodh Gaya?
A) Neem
B) Banyan
C) Peepal
D) Sal
C) Peepal
Explanation: Gautama Buddha attained enlightenment under a Peepal tree (also known as the Bodhi tree) in Bodh Gaya, which is considered one of the holiest sites in Buddhism.