CAT प्रश्न और उत्तर का अभ्यास करें
8प्र: Which of the following is not a compound? 1744 05b5cc68ee4d2b4197774c3c1
5b5cc68ee4d2b4197774c3c1- 1Brasstrue
- 2Quick limefalse
- 3Marblefalse
- 4Soda ashfalse
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उत्तर : 1. "Brass"
व्याख्या :
Answer: A) Brass Explanation: Among the given options Brass is not a compound. Since it is an alloy, it is a mixture. The smallest part of a compound is called a molecule. It has a unique composition that is always the same. Compound is a substance that consists of two or more elements.
प्र: Breeding and management of bees is called 2251 05b5cc68ee4d2b4197774c3bb
5b5cc68ee4d2b4197774c3bb- 1Pisciculturefalse
- 2Sericulturefalse
- 3Silviculturefalse
- 4Apiculturetrue
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उत्तर : 4. "Apiculture"
व्याख्या :
Answer: D) Apiculture Explanation: Breeding and management of bees is called Apiculture. A beekeeper or apiarist keeps bees in order to collect their honey and other products that the hive produces (including beeswax, propolis, flower pollen, bee pollen, and royal jelly), to pollinate crops, or to produce bees for sale to other beekeepers. A location where bees are kept is called an 'apiary' or 'bee yard.'
प्र: What is always coming but never arrives? 1974 05b5cc68be4d2b4197774c3b5
5b5cc68be4d2b4197774c3b5- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
It is Tomorrow. It always be tomorrow which represents coming but never arrives.
प्र: Which of the following vitamin helps in clotting of blood? 1478 05b5cc68be4d2b4197774c3b6
5b5cc68be4d2b4197774c3b6- 1Vitamin Ktrue
- 2Vitamin Dfalse
- 3Vitamin B1false
- 4Vitamin B2false
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उत्तर : 1. "Vitamin K"
व्याख्या :
Answer: A) Vitamin K Explanation: Vitamin K helps in clotting of blood. It is used by the body to help blood clot. Warfarin (Coumadin) is used to slow blood clotting. By helping the blood clot, vitamin K might decrease the effectiveness of warfarin (Coumadin).
प्र: What was the symbol of death of gautama buddha? 1697 05b5cc68be4d2b4197774c3b0
5b5cc68be4d2b4197774c3b0- 1Stupatrue
- 2Bodhi treefalse
- 3Lionfalse
- 4Chaityafalse
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उत्तर : 1. "Stupa"
व्याख्या :
Answer: A) Stupa Explanation: Stupa represents the symbol of death of Gautama Buddha. On the other hand, Bodhi Tree is the symbol of nirvana of Gautama Buddha.
प्र: What has two hands but no arms or legs? 1962 05b5cc68be4d2b4197774c396
5b5cc68be4d2b4197774c396- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
A Clock has 3 hands i.e, an Hour hand, a Minute hand and a Seconds hand.
प्र: Solve the Puzzle? 1933 05b5cc68be4d2b4197774c38f
5b5cc68be4d2b4197774c38f- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
From the assumption and trial and error method, last three digits sum must leave the same digit as the answer. It is possible only if the answer must be units digit number leaving tens digit as carry. And the possible 3rd digit is 5. Since 5 + 5 + 5 = 15 Now, 2nd step is 1 + x + x + x = 5 => 3x = 4 It is possible with x = 8. 8 + 8 + 8 + 1 = 25 leaving 2 as carry. Now, 3rd step is 2 + x + x + x = 5 => x = 1 Hence, the three dgits are 1, 8, 5. 185 + 185 + 185 = 555.
प्र: Brightness of bulb depends on voltage or current? 1051 05b5cc68be4d2b4197774c390
5b5cc68be4d2b4197774c390- 1Currentfalse
- 2Voltagefalse
- 3Both A & Btrue
- 4Nonefalse
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उत्तर : 3. "Both A & B"
व्याख्या :
Answer: C) Both A & B Explanation: Brightness of bulb depends on both voltage and current. The brightness depends on power. Since we know that Power (P) = Voltage x Current = V I So whether you increase the current or the voltage the brightness will increase. Example Illustration: If you connect a long bulb and a round bulb in series, the long bulb glows but the round bulb does not. Both of them have the same current flowing through them (they are in series) but the long bulb has a greater voltage across it because it has more resistance (even though V= IR is not obeyed exactly, voltage drop does depend on the resistance). If you connect a round bulb and a long bulb in parallel, however, it is the round bulb that is brighter because now the voltage across both bulbs is the same but the current is larger through the round bulb (smaller resistance). Hence, the brightness of a bulb depends on power i.e, both voltage and current.

