Science GK Practice Question and Answer
8 4 Q:
5f912fafd6785c0fc0d91299 4 Q:
5ef4495d2d6fc772f50b8ceb Answer : 3. "Magnetic"
4 Q:
604ddf1aa01bc447899e2174 4 Q:
5f9101807793eb35d72c610c 4 4 Q:
601401905beea84b8ecebc42 4 4 Q:
5ef44ae3f2ebd073795bbd97
Q: A high speed vehicle honks, so its pitch?
2313 05f912fafd6785c0fc0d91299
5f912fafd6785c0fc0d91299- 1is heard as muchfalse
- 2more audibletrue
- 3hearing impairedfalse
- 4First less and then morefalse
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Answer : 2. "more audible"
Q: What is the coupling of primary and secondary coils in a transformer?
2303 05ef4495d2d6fc772f50b8ceb
5ef4495d2d6fc772f50b8ceb- 1Electricalfalse
- 2Mechanicalfalse
- 3Magnetictrue
- 4All thesefalse
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Answer : 3. "Magnetic"
Explanation :
The secondary coil is also generating a magnetic field that is growing and shrinking just like the field in the primary coil. This coupling of magnetic energy between these two coils is called mutual induction.
Q: Potato canker has black canker and black pan / colloid factor?
2300 0604ddf1aa01bc447899e2174
604ddf1aa01bc447899e2174- 1two fungifalse
- 2A fungus and a bacteriumfalse
- 3a fungustrue
- 4A fungus and a virusfalse
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Answer : 3. "a fungus"
Q: Rust on iron?
2298 05f9101807793eb35d72c610c
5f9101807793eb35d72c610c- 1ferric oxidefalse
- 2Hydrated ferrous and ferric oxidefalse
- 3Alkali ferrous and ferric carbonatefalse
- 4Because of all of the abovetrue
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Answer : 4. "Because of all of the above"
Q: Nail polish remover contains ? 2297 05c2dbdbcbc106c237a22c18f
5c2dbdbcbc106c237a22c18f- 1benzenefalse
- 2acetic acidfalse
- 3acetonetrue
- 4petroleum etherfalse
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Answer : 3. "acetone"
Q: Which gas is used to purify pond water in cities?
2295 0601401905beea84b8ecebc42
601401905beea84b8ecebc42- 1Sulfur dioxidefalse
- 2Chlorinetrue
- 3Nitrogenfalse
- 4Ammoniafalse
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Answer : 2. "Chlorine"
Q: Water drops are spherical because of ? 2280 05c2dc0d094bba731de8f0a36
5c2dc0d094bba731de8f0a36- 1viscosityfalse
- 2densityfalse
- 3polarityfalse
- 4surface tensiontrue
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Answer : 4. "surface tension"
Q: capacitor is a of small size but high capacity?
2276 15ef44ae3f2ebd073795bbd97
5ef44ae3f2ebd073795bbd97- 1mica capacitortrue
- 2electrolytic capacitorsfalse
- 3Sirasic capacitorfalse
- 4Paper capacitorfalse
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Answer : 1. "mica capacitor"
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