Practice Question and Answer
8 Q: 'Nathra ki pal' and 'Thur Hunder' places are related to which mineral?
1619 0637fae7e49a42a5ac1663bd0
637fae7e49a42a5ac1663bd0- 1Manganesefalse
- 2Tungstenfalse
- 3Copperfalse
- 4Iron Oretrue
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Answer : 4. "Iron Ore"
Explanation :
1. Although Rajasthan is not rich in this mineral, the deposits available are of high quality (hematite and magnetite).
2. Most of the ore found in the form of hematite is found in small deposits which were mined uneconomically.
3. Some magnetites are also found at various places.
4. Iron ore in the state is found in the north-eastern and south-eastern parts of the state.
Q: Two pipes A and B can separately fill a cistern in 60 min and 75 min respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 min. In how much time, the third pipe alone can empty the cistern ? 1619 05b5cc6e7e4d2b4197774edb5
5b5cc6e7e4d2b4197774edb5- 185 minfalse
- 295 minfalse
- 3105 minfalse
- 4100 mintrue
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Answer : 4. "100 min"
Explanation :
Answer: D) 100 min Explanation: Work done by the third pipe in 1 min = 1/50 - (1/60 + 1/75) = - 1/100.[-ve sign means emptying] The third pipe alone can empty the cistern in 100 min.
Q: Photosynthesis generally takes place in which parts of the plant? 1619 05c497b5485451c5d3308c06d
5c497b5485451c5d3308c06d- 1Leaf and other chloroplast bearing partstrue
- 2stem and leaffalse
- 3Roots and chloroplast bearing partsfalse
- 4Bark and leaffalse
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Answer : 1. "Leaf and other chloroplast bearing parts"
Q: Gandhi Irwin Pact happened in 1619 05c4ac91693448b2e9c887978
5c4ac91693448b2e9c887978- 11930false
- 21931true
- 31932false
- 41933false
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Answer : 2. "1931"
Q: Setting a supreme court was Calcutta is a part of 1619 05c515dca62d9e13d14a3813c
5c515dca62d9e13d14a3813c- 1Regulating Act of 1773true
- 2Pitts India Act of 1784false
- 3Charter Act of 1793false
- 4Charter Act of 1893false
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Answer : 1. "Regulating Act of 1773"
Q: The average of 8 numbers is 38.4. Out of these numbers, the average of 7 number is 39.2. The 8th numbers
1618 15e96ee4fb0b9ab17e702f0c5
5e96ee4fb0b9ab17e702f0c5- 133.7false
- 231.5false
- 335.2false
- 432.8true
- 534.5false
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Answer : 4. "32.8 "
Q: In a joint family, there are 24 members whose age is decreased by 4 months, when one girl aged 24 years is replaced by a new boy. Find the age of the new boy ? 1618 05b5cc6c5e4d2b4197774dd73
5b5cc6c5e4d2b4197774dd73- 118 yearsfalse
- 212 yearsfalse
- 315 yearsfalse
- 416 yearstrue
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Answer : 4. "16 years"
Explanation :
Answer: D) 16 years Explanation: Age of new boy = (Age of moved girl) – (Number of family members × Decreased in average) = 24 – 24×4/12 = 24 – 8 = 16 years.
Q: The value of $$ \sqrt { 2^4} \ + \ ^{3}\sqrt {64} \ + \ ^4\sqrt { 2^8} \ $$ is :
1618 05db02fe1c386724da53b204a
5db02fe1c386724da53b204a- 112true
- 216false
- 318false
- 424false
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