CAT Practice Question and Answer
8Q: Gases used in normal welding? 3226 05b5cc688e4d2b4197774c327
5b5cc688e4d2b4197774c327- 1Oxygen and Acetylenetrue
- 2Acetylene and Nitrogenfalse
- 3Oxygen, Hydrogen and Acetylenefalse
- 4Oxygen and Hydrogenfalse
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Answer : 1. "Oxygen and Acetylene"
Explanation :
Answer: A) Oxygen and Acetylene Explanation: Normal Gas welding use oxygen-acetylene. Depending on what materials you are welding, there are some more options that might be used. For example - MIG/TIG use Argon, MAG use an argon-something mix.
Q: Sum of the ages of Rajesh, Suresh, Mahesh and Dinesh is 76 years. 7 years hence, their age ratio is 7:6:5:8. Find Mahesh’s present age ? 3223 05b5cc6c2e4d2b4197774dba5
5b5cc6c2e4d2b4197774dba5- 117 yearsfalse
- 213 yearstrue
- 314 yearsfalse
- 416 yearsfalse
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Answer : 2. "13 years"
Explanation :
Answer: B) 13 years Explanation: Given R + S + M + D = 76 => R+7 : S+7 : M+7 : D+7 = 7:6:5:8 => Let the ratio = x => M+7 = 5x => M = 5x-7 => R = 7x-7 => S = 6x-7 => D = 8x-7 => R + S + M + D = 76 => 7x-7 + 6x-7 + 5x-7 + 8x-7 = 76 => 26x - 28 = 76 => 26x = 104 => x = 4 => Mahesh's present age = 5x-7 = 20 - 7 = 13 years.
Q: A woman says, "If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum." The woman's husband age is ? 3220 05b5cc720e4d2b4197774f613
5b5cc720e4d2b4197774f613- 145false
- 224false
- 342false
- 454true
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Answer : 4. "54"
Explanation :
Answer: D) 54 Explanation: By trial and error method from the given options, as 54 - 45 = (1/11) x (45+54) = 99/11 = 9 Hence this satisfies the given conditions. Then the woman's husband age is 54.
Q: The gas predominantly responsible for global warming is 3215 05b5cc675e4d2b4197774c0fc
5b5cc675e4d2b4197774c0fc- 1Carbon monoxidefalse
- 2Nitrous oxidefalse
- 3Nitrogen peroxidefalse
- 4Carbondioxidetrue
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Answer : 4. "Carbondioxide"
Explanation :
Answer: D) Carbondioxide Explanation: 72% of the totally emitted greenhouse gases is carbon dioxide. Hence, Carbon dioxide (Co2) is predominantly responsible for Global warming.
Q: A garrison of 2000 men has provisions for 54 days. At the end of 15 days, a reinforcement arrives, and it is now found that the provisions will last only for 20 days more. What is the reinforcement ? 3211 05b5cc6e7e4d2b4197774edb0
5b5cc6e7e4d2b4197774edb0- 11900true
- 22100false
- 31700false
- 42000false
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Answer : 1. "1900"
Explanation :
Answer: A) 1900 Explanation: Given 2000 ---- 54 days The provisions for 2000 men for 39 days can be completed by 'm' men for only 20 days. i.e, 2000 ----- 39 days == m ---- 20 days => m x 20 = 2000 x 39 m = 3900 So total men for 20 days is 3900 => 2000 old and 1900 new reinforcement. Hence, reinforcement = 1900.
Q: At which of the following places is the College of Defence Management located ? 3209 05b5cc718e4d2b4197774f4e0
5b5cc718e4d2b4197774f4e0- 1Punefalse
- 2Secunderabadtrue
- 3Chennaifalse
- 4Dehradunfalse
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Answer : 2. "Secunderabad"
Explanation :
Answer: B) Secunderabad Explanation:
Q: Which of the following is true of VoIP? 3207 05b5cc615e4d2b4197774b6d8
5b5cc615e4d2b4197774b6d8- 1It uses the public switched telephone network.false
- 2Skype is an example of VoIP software.true
- 3It uses a slow speed dial-up connection.false
- 4All of the abovefalse
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Answer : 2. "Skype is an example of VoIP software."
Explanation :
Answer: B) Skype is an example of VoIP software. Explanation: VOIP is an acronym for Voice Over Internet Protocol, or in more common terms phone service over the Internet. Voice over Internet Protocol is a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions of the PSTN.
Q: Careful is to Cautious as Boastful is to 3206 05b5cc6ade4d2b4197774d0e9
5b5cc6ade4d2b4197774d0e9- 1Surprisinglyfalse
- 2Happilyfalse
- 3Arroganttrue
- 4Humblefalse
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Answer : 3. "Arrogant"
Explanation :
Answer: C) Arrogant Explanation: Here the given words Careful and Cautious are related in such a way that they are Synonyms of each other. Therefore, Similarly Boastful is synonym to the word Arrogant. Happily and Humble are Antonyms of Boastful and Surprisingly is the word not related to Boastful in any way. So, Careful is to Cautious as Boastful is to Arrogant.