GATE प्रश्न और उत्तर का अभ्यास करें

प्र: Which of the following is malleable? 1830 0

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    Ice
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    Gold
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    Stone
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    Pottery
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उत्तर : 2. "Gold"
व्याख्या :

Answer: B) Gold Explanation: Here in the given options, Gold is a malleable substance. Malleable substance means a metal or a material able to be hammered or pressed into shape without breaking or cracking. i.e, tensile.

प्र: Find the Odd one out of the following Numbers? 1769 0

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    3
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    19
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    67
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    133
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उत्तर : 4. "133"
व्याख्या :

Answer: D) 133 Explanation: Here among the given numbers, 3, 19, 67 are prime numbers. And 133 is not a prime number.   Hence, the odd number of the given numbers is 133.

प्र: Select the correct statement about cellular respiration? 3345 0

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    All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecule
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    All the carbon atoms in glucose ultimately incorporated during cellular respiration into NADH molecule
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    All the carbon atoms in glucose ultimately incorporated during cellular respiration into ATP molecule
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    All the carbon atoms in glucose ultimately incorporated during cellular respiration into water molecule
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उत्तर : 1. "All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecule"
व्याख्या :

Answer: A) All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecule Explanation: All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecules.

प्र: On BBC World News channel last night they showed an informative program about new innovations in medical imaging, which you would have found interesting. 1760 0

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    there was an informative program about innovations in medical imaging, a program you would have found interesting.
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    they showed an informative program about innovations in medical imaging, which you would have found interesting.
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    there was an informative program about new innovations in medical imaging, that you would have found interesting.
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    they showed an informative program about new innovations in medical imaging, which you would have found interesting.
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उत्तर : 1. "there was an informative program about innovations in medical imaging, a program you would have found interesting."
व्याख्या :

Answer: A) there was an informative program about innovations in medical imaging, a program you would have found interesting. Explanation: They is incorrect when talking of the television channel. New is redundant. And which must have a clear antecedent.   Hence, Only Option A satisfies and clears all the flaws in the given sentence.

प्र: What is a Contact Force and explain with an example? 1037 0

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उत्तर :
व्याख्या :

A Contact force is a force applied to a body by another body that is in contact with it. Contact force acts on a point of direct contact between the two objects. This force can either be continuous as a continuous force or can be momentary in the form of an impulse. Contact force is governed by Newton’s Laws. Examples :: Contact force is responsible for most of the interactions we experience in the daily life. 1. Writing your name with a pen, pushing a car up a hill, lifting an object, etc... 2. Kicking a ball, hammering a nail, etc... are some of the everyday examples where contact forces are at work. In the first case, the force is continuously applied by the person on the car or pen or an object while in the second case the force is delivered in a short impulse.   Contact forces are often decomposed into orthogonal components one perpendicular to the surface in contact called the normal force, and one parallel to the surface in contact, called the friction force.

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उत्तर : 2. "72/5 days"
व्याख्या :

Answer: B) 72/5 days Explanation: Work done by Shyam and Rahim in 8 days = 8/32 = 1/4 Remaining work to be done by Shyam and Ram = 1 - 1/4 = 3/4 Given efficieny of Ram is half of Rahim i.e, as Rahim can do the work in 48 days, Ram can do the work in 24 days. One day work of Ram and Shyam = (1/32 - 1/48) + 1/24 = 5/96 Hence, the total work can be done by Shyam and Ram together in 96/5 days.   Therefore, remaining work 3/4 can be done by them in 3/4 x 96/5 = 72/5 = 14.4 days.

प्र: In a box, there are four marbles of white color and five marbles of black color. Two marbles are chosen randomly. What is the probability that both are of the same color? 1560 0

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    2/9
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    5/9
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    4/9
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  • 4
    0
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उत्तर : 3. "4/9"
व्याख्या :

Answer: C) 4/9 Explanation: Number of white marbles = 4 Number of Black marbles = 5 Total number of marbles = 9 Number of ways, two marbles picked randomly = 9C2 Now, the required probability of picked marbles are to be of same color = 4C2/9C2  +  5C2/9C2 = 1/6 + 5/18 = 4/9.

प्र: 'Brothers and sisters, I have none. But that man's father is my father's son'.How I and that man are related respectively? 1420 0

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    Father & Son
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    Brothers
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    Son & Father
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    Nephews
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उत्तर : 1. "Father & Son"
व्याख्या :

Answer: A) Father & Son Explanation: Given that man's father is my father's son => Me because i have no brothers => Mans father is me. Hence, that man is my Son.

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