CAT प्रश्न और उत्तर का अभ्यास करें
8प्र: Who has been appointed as Chairman and Managing Director of Hindustan Copper Limited (HCL) in 2017 ? 1794 05b5cc6cbe4d2b4197774e0ef
5b5cc6cbe4d2b4197774e0ef- 1Debasis Janafalse
- 2Sankara Raofalse
- 3Dev Patelfalse
- 4Santosh Sharmatrue
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उत्तर : 4. "Santosh Sharma"
व्याख्या :
Answer: D) Santosh Sharma Explanation:
प्र: Lasya invested certain amount for two rates of simple interests at 5% p.a. and 4% p.a. What is the ratio of Lasya's investments if the interests from those investments are equal ? 1792 05b5cc6e2e4d2b4197774ec1b
5b5cc6e2e4d2b4197774ec1b- 14 : 5true
- 25 : 4false
- 37 : 6false
- 46 : 7false
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उत्तर : 1. "4 : 5"
व्याख्या :
Answer: A) 4 : 5 Explanation: Let x be the investment of Lasya in 5% and y be in 4% x(5)(n)/100 = y(4)(n)/100 => x/y = 4/5 x : y = 4 : 5
प्र: What are the followers of buddhism called? 1791 05b5cc675e4d2b4197774c148
5b5cc675e4d2b4197774c148- 1Buddhiststrue
- 2Parsisfalse
- 3Noble Truthsfalse
- 4Bhikkhusfalse
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उत्तर : 1. "Buddhists"
व्याख्या :
Answer: A) Buddhists Explanation: Buddhism is the world's fourth-largest religion, with over 520 million followers or over 7% of the global population. People who practice Buddhism are called Buddhists. Buddhists seek to reach a state of nirvana, following the path of the Buddha, Siddhartha Gautama, who went on a quest for Enlightenment around the sixth century BC. There is no belief in a personal god.
प्र: The ratio between the number of sheep and the number of horses at the Stewar farm is 4 to 15. If each of horse is fed 110 ounces of horse food per day and the farm needs a total 13200 ounces of horse food per day. what is number sheep in the form ? 1790 05b5cc754e4d2b4197774fb7c
5b5cc754e4d2b4197774fb7c- 132true
- 236false
- 344false
- 452false
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उत्तर : 1. "32"
व्याख्या :
Answer: A) 32 Explanation: Given ratio of number of sheep and horses = 4 : 15Let number of sheep and horses are 4k and 15k Number of horses = 13200/110 = 120 Now 15K = 120 and k = 8 Number of sheep = 4k = (4 x 8) = 32
प्र: Two trains of equal length are running on parallel lines in the same direction at 36 km/hr and 26 km/hr. The faster train passes the slower train in 36 sec. The length of each train is ? 1790 05b5cc6e0e4d2b4197774eb93
5b5cc6e0e4d2b4197774eb93- 128 mtsfalse
- 254 mtsfalse
- 324 mtsfalse
- 450 mtstrue
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उत्तर : 4. "50 mts"
व्याख्या :
Answer: D) 50 mts Explanation: Let the length of each train be x mts. Then, distance covered = 2x mts. Relative speed = 36 - 26 = 10 km/hr. = 10 x 5/18 = 25/9 m/sec. 2x/36 = 25/9 => x = 50 mts.
प्र: 3, 12, 5, ? 1790 05b5cc6b9e4d2b4197774d725
5b5cc6b9e4d2b4197774d725- 136false
- 226false
- 330true
- 424false
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उत्तर : 3. "30"
व्याख्या :
Answer: C) 30 Explanation: 332 + 3 = 12552 + 5 = 30
प्र: According to a survey, which country has become the second largest smartphone market in the world? 1790 05b5cc6bfe4d2b4197774da92
5b5cc6bfe4d2b4197774da92- 1Japanfalse
- 2Chinafalse
- 3Indiatrue
- 4USAfalse
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उत्तर : 3. "India"
व्याख्या :
Answer: C) India Explanation: According to a Report by analyst firm Canalys, India has become the second largest smartphone market in the world.
प्र: What is the conjugate base of H2O? 1790 05b5cc63de4d2b4197774baf9
5b5cc63de4d2b4197774baf9- 1NH3+false
- 2OH-true
- 3H2Ofalse
- 4All the abovefalse
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उत्तर : 2. "OH-"
व्याख्या :
Answer: B) OH- Explanation: A conjugate acid, is a species formed by the reception of a proton (H+) by a base—in other words, it is a base with a hydrogen ion added to it. On the other hand, a conjugate base is what is left over after an acid has donated a proton during a chemical reaction. Hence, a conjugate base is a species formed by the removal of a proton from an acid. Because some acids are capable of releasing multiple protons, the conjugate base of an acid may itself be acidic. Represented as the following chemical reaction: Acid + Base ⇌ Conjugate Base + Conjugate Acid The water molecule is the conjugate acid of the hydroxide ion after the latter received the hydrogen proton donated by ammonium. On the other hand, ammonia is the conjugate base for the acid ammonium after ammonium has donated a hydrogen ion towards the production of the water molecule. We can also refer to OH- as a conjugate base of H2O, since the water molecule donates a proton towards the production of NH+4 in the reverse reaction, which is the predominating process in nature due to the strength of the base NH3 over the hydroxide ion.