CAT प्रश्न और उत्तर का अभ्यास करें

प्र: Wild animals are not considered a natural resource. 1776 0

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    TRUE
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    FALSE
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उत्तर : 2. "FALSE"
व्याख्या :

Answer: B) FALSE Explanation: The given statement is False. Wild animals are considered as a natural resource. Natural resources are resources taken from nature to satisfy our needs. These natural resources are: 1) Air 2) Water 3) Soil 4) Plants 5) Animals 6) Minerals 7) Forests 8) Natural Gas 9) Coal 10) Petroleum.

प्र: The probability that a number selected at random from the first 100 natural numbers is a composite number is  ? 1776 0

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    3/2
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    2/3
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    1/2
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  • 4
    34/7
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उत्तर : 1. "3/2"
व्याख्या :

Answer: A) 3/2 Explanation: The number of exhaustive events = 100 C₁ = 100. We have 25 primes from 1 to 100. Number of favourable cases are 75. Required probability = 75/50 = 3/2.

प्र: In Geography, who propounded the theory of convectional current Hypothesis? 1776 0

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    Carl Ritter
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    Immanuel Kant
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    Arthur Holmes
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  • 4
    Arnaldo Faustini
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उत्तर : 3. "Arthur Holmes"
व्याख्या :

Answer: C) Arthur Holmes Explanation:

प्र: Name the company that has recently created the world’s smallest magnet using a single atom which can store one bit of data on it. 1775 0

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    TCS
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    Microsoft
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    IBM
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  • 4
    Infosys
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उत्तर : 3. "IBM"
व्याख्या :

Answer: C) IBM Explanation: A team of researchers at IBM has created the world’s smallest magnet using a single atom which can store one bit of data on it.

प्र: Fog is an example of a 1775 0

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    liquid dispersed in gas
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    solid dispersed in liquid
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    liquid dispersed in solid
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    gas dispersed in liquid
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उत्तर : 1. "liquid dispersed in gas"
व्याख्या :

Answer: A) liquid dispersed in gas Explanation: Fog is an example of a colloidal system liquid dispersed in gas.

प्र: Statement: There was a spurt in criminal activities in the city during the recent festival season.Courses of action:a. The police should immediately investigate into the causes of this increase.b. In future the police should take adequate precaution to avoid recurrence of such situation during festival.c. The known criminals should be arrested before any such season. 1775 0

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    Both a and b follows
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    Only c follows
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    Only a follows
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    Both b and c follows
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उत्तर : 1. "Both a and b follows"
व्याख्या :

Answer: A) Both a and b follows Explanation: The police ought to find out the lackenings in existing security arrangements and make up for these inadequacies to strengthen security and thus prevent criminal activities in the forthcoming festival. So, both a and b follow. Arresting the known criminals does not ensure safety, for a novice can also indulge in crime. So, c does not follow.

प्र: Which planet has the lowest density? 1775 0

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    Earth
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    Jupiter
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    Saturn
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    Neptune
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उत्तर : 3. "Saturn"
व्याख्या :

Answer: C) Saturn Explanation: Saturn, the solar system's second largest planet that takes the prize for least dense. It's less dense than water, which has led many people to postulate that it would float. However, even if it somehow found its way to a body of water large and deep enough to contain it, Saturn would break apart and its rocky core would sink.

प्र: A train 125 m long passes a man, running at 4 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is: 1775 0

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    49 kmph
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  • 2
    50 kmph
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  • 3
    51 kmph
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  • 4
    52 kmph
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उत्तर : 1. "49 kmph"
व्याख्या :

Answer: A) 49 kmph Explanation: Speed of the train relative to man = (125/10) m/sec = (25/2) m/sec. [(25/2) x (18/5)] km/hr = 45 km/hr. Let the speed of the train be 'x' km/hr. Then, relative speed = (x - 4) km/hr. x - 4 = 45 => x = 49 km/hr.

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