Basic Science Practice Question and Answer
8 Q: Thermal conductivity of soil when moisture content in the soil increases?
1652 0604deaf7e147c16b2869c752
604deaf7e147c16b2869c752- 1will decreasefalse
- 2will increasetrue
- 3No changefalse
- 4None of thesefalse
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Answer : 2. "will increase"
Q: Which of the following was the first B vitamin discovered in 1897?
1640 064c38a8666a41f484c1cff4c
64c38a8666a41f484c1cff4c- 1Folatefalse
- 2Biotinfalse
- 3Riboflavinfalse
- 4Thiaminetrue
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Answer : 4. "Thiamine"
Explanation :
1. The first vitamin discovered in 1897 was thiamine, also known as vitamin B1.
2. Thiamine was discovered by Dutch physician Christiaan Eijkman.
3. Vitamin B1 helps body cells convert carbohydrates into energy and maintain proper functioning of the heart, muscles and digestive system.
Q: What are the units of electrical conductivity?
1637 06024f177083f2c6596c16ae6
6024f177083f2c6596c16ae6- 1Minutesfalse
- 2Dimensionfalse
- 3Speedfalse
- 4Mahotrue
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Answer : 4. "Maho"
Q: Who among the following are the inventors of dynamite?
1617 05f912dd4c011be03879fe9a4
5f912dd4c011be03879fe9a4- 1Einsteinfalse
- 2Newtonfalse
- 3Alfred Nobeltrue
- 4Madame Curiefalse
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Answer : 3. "Alfred Nobel"
Q: Richter Scale is used in measuring?
1601 15f912d7b9e18f97b7040e7d7
5f912d7b9e18f97b7040e7d7- 1Earthquake intensitytrue
- 2Wind speedfalse
- 3Depth of seafalse
- 4Body temperaturefalse
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Answer : 1. "Earthquake intensity"
Q: The average salinity of sea water is
1598 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: His melting point increasing the pressure on ice?
1591 15f9130427793eb35d72d84b4
5f9130427793eb35d72d84b4- 1will decreasetrue
- 2will increasefalse
- 3will be zerofalse
- 4will remain unchangedfalse
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Answer : 1. "will decrease"
Q: Solder wire is made?
1590 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.