GK Practice Question and Answer
8 Q: When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together?
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5dfca17b40c34473ac86b913- 1Hydrogen bond formationtrue
- 2Vander walls forcesfalse
- 3Covalent attractionfalse
- 4Dipole interactionfalse
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Answer : 1. "Hydrogen bond formation "
Q: A star appears twinkling in the sky because of
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5dfc9fc154723673b3fec326- 1scattering of light by atmospherefalse
- 2reflection of light by atmospherefalse
- 3refraction of light by atmospheretrue
- 4diffraction of light by atmospherefalse
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Answer : 3. "refraction of light by atmosphere "
Q: Reflex actions are controlled by 1804 05b5cc69ee4d2b4197774c985
5b5cc69ee4d2b4197774c985- 1the Brainfalse
- 2the Spinal Chordtrue
- 3the Nervesfalse
- 4the Cellsfalse
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Answer : 2. "the Spinal Chord "
Explanation :
Answer: B) The Spinal Chord Explanation: A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.
Q: ' Lockjaw ' is the last phase of which of the following diseases ?
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5dfc9e51a3197573ca590391- 1Diptheriafalse
- 2Pneumoniafalse
- 3Syphilisfalse
- 4Tetanustrue
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Answer : 4. "Tetanus "
Q: Housefly spreads
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5dfc9ddf39a7fe73df354155- 1Common coldfalse
- 2Malariafalse
- 3Flufalse
- 4Typhoidtrue
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Answer : 4. "Typhoid "
Q: Which of the following is caused by the higher concentration of Nitrogen and Phosphorous?
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5dfc9d4340c34473ac86ae3c- 1Eutrophicationtrue
- 2Hardnessfalse
- 3Alkalinityfalse
- 4Acidityfalse
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Answer : 1. "Eutrophication "
Q: The manufacture of iron from iron ore involves the process of
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5dfc9cd140c34473ac86ad65- 1oxidationfalse
- 2reductiontrue
- 3fractional distillationfalse
- 4electrolysisfalse
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Answer : 2. "reduction "
Q: Chloroform can be used as
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5dfc9c2854723673b3feb799- 1Analgesicfalse
- 2Anaesthetictrue
- 3Antimalarialfalse
- 4Antibioticfalse
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