Practice Question and Answer
8 Q: A cistern can be filled by two pipes filling separately in 12 and 16 min respectively. Both pipes are opened together for a certain time but being obstructions, only 7/8 of full quantity water flows through the former and only 5/6 through the latter pipe. The obstructions, however, being suddenly removed, the cistern is filled in 3 minutes from that moment. How long was it obstructions before the full flow began?
2152 0600e8c7f178b94051cdf8ca5
600e8c7f178b94051cdf8ca5- 14.5 mintrue
- 22.5 minfalse
- 33.5 minfalse
- 45.5 minfalse
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Answer : 1. "4.5 min "
Q: How many Types of Soil in India? 2152 05b5cc6b9e4d2b4197774d6c1
5b5cc6b9e4d2b4197774d6c1- 14false
- 25false
- 37false
- 48true
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Answer : 4. "8"
Explanation :
Answer: D) 8 Explanation: There are 8 different types of Soils present in India. They are primarily differentiated on the basis of composition and structure. They are :: 1. Alluvial soils, 2. Black soils, 3. Red soils, 4. Laterite and Lateritic soils, 5. Forest and Mountain soils, 6. Arid and Desert soils, 7. Saline and Alkaline soils and 8. Peaty and Marshy soils.
Q: Bhel commissions another 600Mw thermal unit in which state ? 2151 15b5cc774e4d2b41977750061
5b5cc774e4d2b41977750061- 1Telanganatrue
- 2Andhra Pradeshfalse
- 3Chattisgarhfalse
- 4Karnatakafalse
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Answer : 1. "Telangana"
Explanation :
Answer: A) Telangana Explanation:
Q:Directions-Study the following diagram and answer the four questions.
The percentage of students securing marks less than 50 is
2151 05daea745622dcb0d26318ea7
5daea745622dcb0d26318ea7- 1$$ 28{4\over 7}%$$true
- 2$$ 25{5\over 7}%$$%false
- 3$$ 23{13\over 21}%$$%false
- 4$$ 47{13\over 21}%$$%false
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Answer : 1. "$$ 28{4\over 7}%$$"
Q: The angle of elevation of sun changes from 30 ° to 45 °, the length of the shadow of a pole decreases by 4 meters, the height of the pole is (Assume √3 = 1.732)
2151 05f0bf2acfce6716072896ba9
5f0bf2acfce6716072896ba9- 13.648 mfalse
- 25.464 mtrue
- 31.464 mfalse
- 49.464 mfalse
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Answer : 2. "5.464 m"
Q: The sum of 10 terms of the arithmetic series is 390. If the third term of the series is 19. Find the first term
2151 05dbfb7a817d85f0ae3787544
5dbfb7a817d85f0ae3787544- 13true
- 25false
- 37false
- 48false
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Answer : 1. "3"
Q: In the below word how many words are there in which R and W are at the end positions? RAINBOW 2151 05b5cc7d1e4d2b419777512a4
5b5cc7d1e4d2b419777512a4- 1120false
- 2180false
- 3210false
- 4240true
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Answer : 4. "240"
Explanation :
Answer: D) 240 Explanation: When R and W are the first and last letters of all the words then we can arrange them in 5!ways. Similarly When W and R are the first and last letters of the words then the remaining letters can be arrange in 5! ways. Thus the total number of permutations = 2 x 5! = 2 x 120 = 240
Q: Study the given pattern carefully and choose the figure that will complete the pattern given in the question figure.
2151 05faba3e4aa6ba574512ae1e4
5faba3e4aa6ba574512ae1e4- 1true
- 2false
- 3false
- 4false
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Answer : 1. "
"