PSC Previous Years GS Questions Part 16

PSC General Science Question Bank Part 16

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• 376. In the nuclear reactor, control rods are made up of ?
• A) Iron
  B) Aluminium
  C) Cadmium
  D) Copper
• Answer
• Correct Option : C
• Explanation

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• 377. Who developed the Polio Vaccine?
• A) Jonas Salk
  B) Louise Pasteur
  C) Edward Jenner
  D) Alexander Fleming
• Answer
• Correct Option : A
• Explanation

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• 378. Gas which causes acid rain in industrial area is?
• A) Sulfur Dioxide
  B) Carbon Monoxide
  C) Methane
  D) Carbon Dioxide
• Answer
• Correct Option : A
• Explanation

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• 379. The SI Unit of electric power is?
• A) Volt
  B) Watt
  C) Ampere
  D) Farad
• Answer
• Correct Option : B
• Explanation

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• 380. `Beaufort Scale` is used to measure ......
• A) Air Direction
  B) Wind Velocity
  C) Wind Direction
  D) Humidity
• Answer
• Correct Option : B
• Explanation

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• 381. The voltage between any two phases in the three phase system is?
• A) 1100V
  B) 400V
  C) 220V
  D) 110V
• Answer
• Correct Option : B
• Explanation

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• 382. Electro magnetic radiations with highest frequency are?
• A) Gamma rays
  B) X Ray
  C) Radio waves
  D) Infrared rays
• Answer
• Correct Option : A
• Explanation

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• 383. The unit of acceleration is?
• A) m/s
  B) m/s2
  C) km/h
  D) m2/s
• Answer
• Correct Option : B
• Explanation

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• 384. The difference between isotopes of `an element is due to the presence of a different number of?
• A) protons & neutrons
  B) shell
  C) electrons
  D) photons
• Answer
• Correct Option : A
• Explanation

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• 385. The dissolved oxygen in the water due to water pollution?
• A) increases
  B) becomes zero
  C) decreases
  D) bubbles out
• Answer
• Correct Option : C
• Explanation

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• 386. The acid produced in the digestive system of human beings is?
• A) Acetic acid
  B) Hydrochloric acid
  C) Formic acid
  D) Nitric acid
• Answer
• Correct Option : B
• Explanation

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• 387. Plants respire through?
• A) cells
  B) leaves
  C) stomata
  D) cell membrane
• Answer
• Correct Option : C
• Explanation

• [accordion]
• 388. The concept that all plants are made of cells was put forward by?
• A) Theodor Schwan
  B) R.Virchow
  C) Louis paster
  D) M.J Schleiden
• Answer
• Correct Option : D
• Explanation

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• 389. Which of the following disease is characterised by on flammation of the membranes covering the brain and spinal cord?
• A) Hepatitis
  B) Sinusitis
  C) Tonsilitis
  D) Meningitis
• Answer
• Correct Option : D
• Explanation

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• 390. Toxic substance enter into the food chains and accumulate on higher tropic levels. The phenomenon is called?
• A) cirrhosis
  B) Algal Bloom
  C) Biomagnification
  D) Ascities
• Answer
• Correct Option : C
• Explanation

• [accordion]
• 391. Which among the following is not correctly paired?
• A) Dynamo - Alfred Nobel
  B) Television - J.L.Baird
  C) Computer - Charls Babbage
  D) DDT - Pole Muller
• Answer
• Correct Option : A
• Explanation

• [accordion]
• 392. Which of the following is not a viral disease?
• A) Avian flu
  B) Malaria
  C) SARS
  D) Dengue fever
• Answer
• Correct Option : B
• Explanation

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• 393. High boiling point of water is due to?
• A) Weak disassociation of water molecules
  B) High disassociation of water molecules
  C) Hydrogen bonding amongst water molecules
  D) Vander waals forces of attraction amongst the molecules
• Answer
• Correct Option : C
• Explanation

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• 394. SI unit of Luminous intensity is.....
• A) Mole
  B) Candela
  C) Kelvin
  D) Ampere
• Answer
• Correct Option : B
• Explanation

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• 395. The same group elements are characterised by?
• A) Ionization Potential
  B) Electro negativity
  C) Ionization energy
  D) Number of electrons in the outermost shell
• Answer
• Correct Option : D
• Explanation

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• 396. The process used to produce ammonia is?
• A) Contact process
  B) Haber process
  C) Chlor - alkali process
  D) Creighton process
• Answer
• Correct Option : B
• Explanation

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• 397. Which lamp has the highest energy efficiency?
• A) Incandescent lamp
  B) LED Lamp
  C) CFL
  D) Arc Lamp
• Answer
• Correct Option : B
• Explanation

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• 398. Diverging lens produces ...... type of images
• A) small virtual image
  B) big real image
  C) small real image
  D) big virtual image
• Answer
• Correct Option : A
• Explanation

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• 399. A device used to detect heat radiation is known as?
• A) Barometer
  B) Thermo couple
  C) Thermopile
  D) Thermoelectric generator
• Answer
• Correct Option : B
• Explanation

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• 400. The Derived Unit of viscosity is ......
• A) Poise
  B) Pascal -second
  C) Fluidity
  D) Reyn
• Answer
• Correct Option : B
• Explanation

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