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
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- 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
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- 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
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- 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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