Basic Science Practice Question and Answer
8 4 Q:
6014085b2a5c813e157fa078 4 Q:
5f912f5a7793eb35d72d8391 4 Q:
5edefa608c4c964f73d37fc0 Answer : 3. "3.5%"
4 Q:
6024f177083f2c6596c16ae6 4 Q:
5f912dd4c011be03879fe9a4 4 Q:
5ef415d2bea49d16b47d3a44 Answer : 1. "Land and tin"
4 Q:
5f912d7b9e18f97b7040e7d7 4 Q:
611b67f06d0fd147810fba82
Q: Who invented television?
1773 06014085b2a5c813e157fa078
6014085b2a5c813e157fa078- 1J.R. L. Bairdtrue
- 2Macmillanfalse
- 3James Wattfalse
- 4None of thesefalse
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Answer : 1. "J.R. L. Baird"
Q: The main reason why the sky appears blue?
1771 05f912f5a7793eb35d72d8391
5f912f5a7793eb35d72d8391- 1Sunlight is bluefalse
- 2Scattering of solar rays by particles of dust etc. present in the atmospheretrue
- 3light reflectionfalse
- 4light refractionfalse
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Answer : 2. "Scattering of solar rays by particles of dust etc. present in the atmosphere"
Q: The average salinity of sea water is
1759 05edefa608c4c964f73d37fc0
5edefa608c4c964f73d37fc0- 12%false
- 23%false
- 33.5%true
- 42.5%false
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Answer : 3. "3.5%"
Explanation :
The average salinity of sea water is 3.5% or 35 parts per thousand. In other words, for every 1 litre of sea water there is 35 grams of dissolved salts (NaCl) .
Q: What are the units of electrical conductivity?
1758 06024f177083f2c6596c16ae6
6024f177083f2c6596c16ae6- 1Minutesfalse
- 2Dimensionfalse
- 3Speedfalse
- 4Mahotrue
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Answer : 4. "Maho"
Q: Who among the following are the inventors of dynamite?
1750 05f912dd4c011be03879fe9a4
5f912dd4c011be03879fe9a4- 1Einsteinfalse
- 2Newtonfalse
- 3Alfred Nobeltrue
- 4Madame Curiefalse
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Answer : 3. "Alfred Nobel"
Q: Solder wire is made?
1723 05ef415d2bea49d16b47d3a44
5ef415d2bea49d16b47d3a44- 1Land and tintrue
- 2Zinc and copperfalse
- 3copper and leadfalse
- 4None of thesefalse
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Answer : 1. "Land and tin"
Explanation :
Solder is a fusible metal alloy used to create a permanent bond between metal workpieces. It is made up of 60% tin and 40% lead.
Q: Richter Scale is used in measuring?
1722 15f912d7b9e18f97b7040e7d7
5f912d7b9e18f97b7040e7d7- 1Earthquake intensitytrue
- 2Wind speedfalse
- 3Depth of seafalse
- 4Body temperaturefalse
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Answer : 1. "Earthquake intensity"
Q: Insulin was invented by?
1709 1611b67f06d0fd147810fba82
611b67f06d0fd147810fba82- 1Eijkmanfalse
- 2Bettingtrue
- 3Domagkfalse
- 4H. G. khuranafalse
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Answer : 2. "Betting"
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