Science GK Practice Question and Answer
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Q: Is the father of 'demonstration method'?
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604dde85d4491561f1df3ba5- 1John D.V.false
- 2Daniel Benorfalse
- 3A.D. B. Grahamfalse
- 4Seaman A. Naptrue
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Answer : 4. "Seaman A. Nap"
Q: What chemical substance is present in bones and teeth, what is it called?
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601408f65beea84b8ecf1c6c- 1calcium chloridefalse
- 2calcium boratefalse
- 3calcium phosphatetrue
- 4calcium sulfatefalse
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Answer : 3. "calcium phosphate"
Q: Who invented television?
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6014085b2a5c813e157fa078- 1J.R. L. Bairdtrue
- 2Macmillanfalse
- 3James Wattfalse
- 4None of thesefalse
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Answer : 1. "J.R. L. Baird"
Q: The function of dynamo is?
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601407eed039355294ee53a6- 1Converting electrical energy into mechanical energyfalse
- 2Converting mechanical energy into electrical energytrue
- 3Converting electrical energy into heatfalse
- 4None of thesefalse
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Answer : 2. "Converting mechanical energy into electrical energy"
Q: By which device is the purity of milk measured?
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6014079965f0475903723794- 1manometerfalse
- 2Hydrometerfalse
- 3Lactometertrue
- 4Fadometerfalse
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Answer : 3. "Lactometer"
Q: How does a red rose appear in green light?
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601407535beea84b8ecf13bd- 1yellowfalse
- 2Pinkfalse
- 3Blacktrue
- 4Redfalse
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Answer : 3. "Black"
Q: When a metal is heated, its density?
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60140705d039355294ee4e93- 1increasesfalse
- 2There is no differencefalse
- 3decreasestrue
- 4None of the abovefalse
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Answer : 3. "decreases"
Q: What is the lightest metal?
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60140670d039355294ee343a- 1Lithiumtrue
- 2Iridiumfalse
- 3aluminumfalse
- 4Osmiumfalse
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Answer : 1. "Lithium"
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