Practice Question and Answer
8Q: The Ozone Layer restricts from 4739 05b5cc6b7e4d2b4197774d633
5b5cc6b7e4d2b4197774d633- 1Infrared Raysfalse
- 2Radio wavesfalse
- 3Ultraviolet Radiationtrue
- 4X-Rays and Gamma Raysfalse
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Answer : 3. "Ultraviolet Radiation"
Explanation :
Answer: C) Ultraviolet Radiation Explanation: The Ozone layer which is present in the Earth's atmosphere protects it by restricting from UV or Ultraviolet radiation, the dangerous rays contained by Sun.
Q: Early morning after sunrise, Karthik was standing infront of his house in such a way that his shadow was falling exactly behind him. He starts walking straight and walks 5 metres. He turns to his left and walks 3 metres and again turning to his left walks 2 metres. Now in which direction is he from his starting point? 4739 05b5cc705e4d2b4197774f211
5b5cc705e4d2b4197774f211- 1Westfalse
- 2North-Easttrue
- 3Eastfalse
- 4South-Westfalse
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Answer : 2. "North-East"
Explanation :
Answer: B) North-East Explanation: Early morning suns rise at east, if his shadow falls exactly behind him that means he is facing towards east. now he walks 5mt towards east, then he turns left that means he facing towards north and walk 3mt and if he turn left then he is facing towards west and he walk only 3 kms thats why man is in north east direction from starting point.
Q: 30 oranges and 75 apples were purchased for Rs 510 If the price per apple was 2 then the average price of orange was?
4739 063285afb8146e66c29925ab4
63285afb8146e66c29925ab4- 1Rs 10false
- 2Rs 15false
- 3Rs 12true
- 4Rs 14false
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Answer : 3. "Rs 12"
Q: Ratan can complete a work in \(5 {1 \over 2}\) days while Rupesh can complete it in \(10 {1 \over 2}\) days. In how many days can they both complete it working on it together? 4738 25d147c239aeb0a08f1e67215
5d147c239aeb0a08f1e67215- 1\(3 {39 \over 64 }\)true
- 2\(4 {39 \over 64 }\)false
- 3\(5 {39 \over 64 }\)false
- 4\(6 {39 \over 64 }\)false
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Answer : 1. "\(3 {39 \over 64 }\) "
Q: Which action is the best example of a direct observation? 4738 05b5cc66de4d2b4197774bfaa
5b5cc66de4d2b4197774bfaa- 1listening to a cricket chirp at night and counting the number of chirps per minutetrue
- 2determining the seal population of an island by counting seals in 10 square meters of the islandfalse
- 3identifying which bird was present by the tracks that it leaves in the sand at a beachfalse
- 4reading numbers on a heat sensor to conclude that there is a deer in the night woodsfalse
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Answer : 1. "listening to a cricket chirp at night and counting the number of chirps per minute"
Explanation :
Answer: A) listening to a cricket chirp at night and counting the number of chirps per minute Explanation:
Q: IC chips used in computers are made?
4734 15f644620a372fb536711a238
5f644620a372fb536711a238- 1Chromiumfalse
- 2iron oxidefalse
- 3Silverfalse
- 4Silicontrue
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Answer : 4. "Silicon"
Q: The Indian to beat the computers in mathematical wizardry is 4728 05b5cc6a2e4d2b4197774cb66
5b5cc6a2e4d2b4197774cb66- 1Shakuntala Devitrue
- 2Raja Ramannafalse
- 3Rina Panigrahifalse
- 4Ramanujamfalse
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Answer : 1. "Shakuntala Devi"
Explanation :
Answer: A) Shakuntala Devi Explanation:
Q: A, B, C, D, E, F and G are members of a family consisting of four adults and three children, two of whom, F and G are girls. A and D are brothers and A is a doctor. E is an engineer married to one of the brothers and has two children. if is married to D and G is their child. Who is C ? 4728 05c2ddcc894bba731de8f0ad2
5c2ddcc894bba731de8f0ad2- 1F's fatherfalse
- 2E's daughterfalse
- 3A's sontrue
- 4G's brotherfalse
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