CAT Practice Question and Answer
8Q: Fuse Wire is Made of? 1894 05b5cc6b4e4d2b4197774d4f7
5b5cc6b4e4d2b4197774d4f7- 1an alloy of Tin and Leadtrue
- 2Nickelfalse
- 3Copperfalse
- 4an alloy of Nickel and Leadfalse
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Answer : 1. "an alloy of Tin and Lead"
Explanation :
Answer: A) an alloy of Tin and Lead Explanation: Fuse Wire is Made of an alloy of Tin and Lead. If too high a current flows, the element rises to a higher temperature and either directly melts, or else melts a soldered joint within the fuse, opening the circuit. Thefuse element is made of an alloy of Tin and Lead to provide stable and predictable characteristics.
Q: India's first amphibious bus project has been launched by which state government ? 1893 05b5cc783e4d2b4197775020f
5b5cc783e4d2b4197775020f- 1Telanganafalse
- 2Assamfalse
- 3Punjabtrue
- 4Gujaratfalse
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Answer : 3. "Punjab"
Explanation :
Answer: C) Punjab Explanation:
Q: Which revolutionary died after a 64 days fast in jail? 1893 05b5cc66de4d2b4197774bfcf
5b5cc66de4d2b4197774bfcf- 1Jatin Dastrue
- 2Pulin Dasfalse
- 3Subhash Chandra bosefalse
- 4Both A & Bfalse
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Answer : 1. "Jatin Das"
Explanation :
Answer: A) Jatin Das Explanation: Jatindra Nath Das, also known as Jatin Das, was a revolutionary and Independence activist. He embraced death in Lahore jail after fasting for 64 days in 1929 at the age of 24 yrs.
Q: Who among the following is set to become the youngest-ever "Messenger of Peace," for 'United Nations' ? 1892 05b5cc6fbe4d2b4197774f0b0
5b5cc6fbe4d2b4197774f0b0- 1Rashi Anandfalse
- 2Shikha Patrafalse
- 3Bedadyuti Jhafalse
- 4Malala Yousafzaitrue
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Answer : 4. "Malala Yousafzai"
Explanation :
Answer: D) Malala Yousafzai Explanation:
Q: A single pipe of diameter x has to be replaced by six pipes of diameters 12 cm each. The pipes are used to covey some liquid in a laboratory. If the speed/flow of the liquid is maintained the same then the value of x is ? 1891 05b5cc73ae4d2b4197774f902
5b5cc73ae4d2b4197774f902- 114.69 cmfalse
- 229.39 cmtrue
- 318.65 cmfalse
- 422.21 cmfalse
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Answer : 2. "29.39 cm"
Explanation :
Answer: B) 29.39 cm Explanation: Volume of water flowing through 1 pipe of diameter x = Volume discharged by 6 pipes of diameter 12 cms. As speed is same, area of cross sections should be same. Area of bigger pipe of diameter x = Total area of 6 smaller pipes of diameter 12 i.e πR2 = 6πR12 Here R = R and R1 = 12/2 = 6 ⇒R2 = 6×6×6 R = 14.696 => D = X = 14.696 * 2 = 29.3938 cm.
Q: A certain job was assigned to a group of women to do it in 20 days. But 12 women did not turn up for the job and the remaining did the job in 32 days. The original number of women in the group was? 1891 05b5cc6bae4d2b4197774d794
5b5cc6bae4d2b4197774d794- 136false
- 232true
- 322false
- 428false
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Answer : 2. "32"
Explanation :
Answer: B) 32 Explanation: Let the total women in the group be 'W' Then according to the given data, W x 20 = (W-12) x 32 => W = 32 Therefore, the total number of women in the group = 32
Q: (3x + 2) (2x - 5) = ax² + kx + n. What is the value of a - n + k ? 1891 05b5cc74fe4d2b4197774fafe
5b5cc74fe4d2b4197774fafe- 14false
- 21false
- 35true
- 43false
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Answer : 3. "5"
Explanation :
Answer: C) 5 Explanation: (3x + 2) (2x - 5) = ax2+kx+n ...............(1) But (3x + 2)(2x - 5) = 6x2-11x-10........(2) so by comparing (1) & (2), we get a= 6, k= -11 , n= -10 (a - n + k) = 6 + 10 - 11 = 5.
Q: The simple interest on a sum of money will be Rs.600 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year ? 1890 05b5cc6e1e4d2b4197774ebf7
5b5cc6e1e4d2b4197774ebf7- 1Rs. 1100false
- 2Rs. 1200true
- 3Rs. 1000false
- 4Rs. 1840false
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Answer : 2. "Rs. 1200"
Explanation :
Answer: B) Rs. 1200 Explanation: P --- 10 ----- 600 P --- 5 ----- 300 3P --- 5 ----- 900 __________ 1200

