CAT Questions

Q:

The color with the longest wavelength is

A) Red B) Violet
C) Indigo D) Orange
 
Answer & Explanation Answer: A) Red

Explanation:

Each color has a different wavelength.

 

Red has the longest wavelength and violet has the shortest wavelength.

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Filed Under: Physics
Exam Prep: Bank Exams , CAT

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Q:

Product of digits of a 2-digit number is 18. If we add 63 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

A) 92 B) 29
C) 36 D) 63
 
Answer & Explanation Answer: B) 29

Explanation:
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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

If tan(A/2) = x, then the value of x is

A) (1 - cosA)/sinA B) (1 + cosA)/sinA
C) √[(1 - cosA)/sinA] D) √[(1 + cosA)/sinA]
 
Answer & Explanation Answer: A) (1 - cosA)/sinA

Explanation:
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Q:

In the following question, a short passage with one of the lines in the passage missing and represented by a blank is given. Select the best out of the five answer choices given, to make the passage complete and coherent (coherent means logically complete and sound).
There is a fairly universal sentiment that the use of nuclear weapons is clearly contrary to mortality and that its production probably so, does not go far enough. These activities are not only opposed to mortality but also to the law. If the legal objection can be added to the moral, the argument against the use and manufacture of these weapons will considerably be reinforced. Now the time is ripe to evaluate the responsibility of scientists who knowingly use their expertise for the construction of such weapons, which has a deleterious effect on mankind.
How appropriate it is that all this valuable skill should be devoted to the manufacture of weapons of death in a world of poverty is a question that must touch the scientific conscience.

A) Almost 50% of the skilled scientific manpower in the world is now engaged in the armaments industry. B) To think that majority of the scientists are promoting the manufacturing of the armaments is hurtful.
C) Scientists should use their conscience before taking up these contracts to manufacture the weapons of mass destruction. D) Scientific manpower is used to the interests of some selfish and careless people who want to threaten the existence of homo-sapiens.
 
Answer & Explanation Answer: A) Almost 50% of the skilled scientific manpower in the world is now engaged in the armaments industry.

Explanation:

Choice 1 is correct as it matches with the flow of the passage. The whole paragraph is about the devastating effects that nuclear weapons have due to certain curtailments on part of the
scientists in the moral and the conscience aspect. It is only logical to mention an argument to support the next statement. It also keeps up with the tone and general
subject of the passage.
Option 2 is a bad choice as it talks about absolutely nothing and is too naïve. Therefore is incorrect as it is beyond the general theme.
Option 3 is incorrect as it obviously does not go with the flow of the Para.
As for option 4, it is incorrect as the statement is illogical.
As for 5, neither does it logically follow the previous sentence nor is it related to the anything in the next sentence.

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Filed Under: English
Exam Prep: TOEFL , GRE , CAT

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Q:

Which of the following phrases (i), (ii), and (iii) given below each sentence should replace the phrase printed in bold letters to make the sentence grammatically correct? Choose the best option among the five given alternatives that reflect the correct use of phrase in the context of the grammatically correct sentence. If the sentence is correct as it is, mark (E) i.e., "No correction required" as the answer.
The government cannot realize good price from certain assets but their disposal will helped in stop the drain.
i. Help in stoppage in the drain
ii. Help stop the drain
iii. Be helping in draining

A) A. Only i B) B. Only ii
C) C. Only iii D) D. i and iii
 
Answer & Explanation Answer: B) B. Only ii

Explanation:

Ans. B.
The correct form of verb to be used after 'will' is 'help.' Verbs are not needed in infinitive or participle form here since the effect of the disposal of assets will be seen in the future. So option B is the correct answer.

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Filed Under: English
Exam Prep: CAT , GRE , TOEFL

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Q:

In the following question, out of the four alternatives, select the word similar in meaning to the word given.
Realm

A) Vault B) Azure
C) Lid D) Dimension
 
Answer & Explanation Answer: D) Dimension

Explanation:
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Filed Under: English
Exam Prep: Bank Exams , CAT

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Q:

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

 

5, 10, 30, 120, ?

 

A) 624 B) 600
C) 626 D) 670
 
Answer & Explanation Answer: B) 600

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams , CAT

2 659
Q:

What are the qualities to be independent ?

Answer

The qualities that a person need, to be independent are:


- Have a mind of your own.
- Have the confidence to challenge accepted wisdom when required.
- Can effectively work alone when necessary.





 

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