Practice Question and Answer
8 Q: Which one of the following organisms has a role in converting nitrates to free nitrogen?
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5ef585b0f2ebd073795f236b- 1Pseudomonasfalse
- 2Nitrosomonasfalse
- 3Nitrobacterfalse
- 4Rhizobiumtrue
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Answer : 4. "Rhizobium"
Explanation :
Nitrates are reduced back into nitrogen in the soil by a process called denitrification. This process is performed by bacteria like Pseudomonas denitrificans, etc.
Q: When was 'Big Butterfly Month: India 2020' launched?
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5f5868b993cd323636078465- 14 September 2020false
- 25 September 2020true
- 33 September 2020false
- 46 September 2020false
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Answer : 2. "5 September 2020"
Q: The number of permutations of the letters of the word 'MESMERISE' is ? 2966 05b5cc6ebe4d2b4197774ee5f
5b5cc6ebe4d2b4197774ee5f- 19!/(2!)^{2}x3!true
- 29! x 2! x 3!false
- 30false
- 4Nonefalse
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Answer : 1. "9!/(2!)^{2}x3!"
Explanation :
Answer: A) 9!/(2!)^{2}x3! Explanation: n items of which p are alike of one kind, q alike of the other, r alike of another kind and the remaining are distinct can be arranged in a row in n!/p!q!r! ways.The letter pattern 'MESMERISE' consists of 10 letters of which there are 2M's, 3E's, 2S's and 1I and 1R.Number of arrangements = 9!(2!)2×3!
Q: A rectangular block has the dimensions 5x6x7 cm it is dropped into a cylindrical vessel of radius 6cm and height 10 cm. If the level of the fluid in the cylinder rises by 4 cm, What portion of the block is immersed in the fluid ? 2966 05b5cc70ee4d2b4197774f337
5b5cc70ee4d2b4197774f337- 122/7 x 24/35true
- 222/7 x 36 x 4false
- 322/7 x 36/5false
- 422/7 x 37/21false
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Answer : 1. "22/7 x 24/35"
Explanation :
Answer: A) 22/7 x 24/35 Explanation: Since level of water increased in cylinder by height 4. This is because of the rectangular block . Therefore , area of rectangular block immersed in water is = 227×6×6×4 Thats why portion of block immersed in water is = (22/7 * 36 * 4) / total vol. of rectangle = (22/7 * 36 * 4)/ (7*5*6) = (22/7 * 24)/ 35.
Q:In the question a sentence has been given in Direct/Indirect. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct and mark your answer in the Answer Sheet.
The doctor said to the patient, "How do you feel now ? Has the pain gone down ?"
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5f3636c4dcc354083314f258- 1The doctor asked the patient how he was feeling then and if the pain was down.false
- 2The doctor asked the patient how he felt then and if the pain had gone down.true
- 3The doctor asked the patient how he had felt when the pain was gone.false
- 4The doctor asked the patient how he is feeling now and if the pain has gone down.false
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Answer : 2. "The doctor asked the patient how he felt then and if the pain had gone down. "
Q: The famous book 'The Daughter of the East' is written by 2965 05c458caad8af4d4f345610fc
5c458caad8af4d4f345610fc- 1Ms. Taslima Nasreenfalse
- 2Ms. Benazir Bhuttotrue
- 3Ms. Aunsan Suu Kyifalse
- 4Ms. Bandaranaike Sirimavofalse
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Answer : 2. "Ms. Benazir Bhutto"
Q: In a test consisting of 150 questions carrying 1 mark each, Saurabh answered 80 % of the first 75 question correctly. What percent of the other 75 question does he need to answer correctly to score 60 % overall?
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600a8b081187ab38691e58c2- 120false
- 240true
- 350false
- 460false
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Answer : 2. "40"
Q: Statement:
Some drivers are racers.
Some racers are pilots.
Conclusion:
I. Some pilots are drivers.
II. There are no pilot drivers.
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5f6ad5dcf9079a64e3ad7471Some drivers are racers.
Some racers are pilots.
Conclusion:
I. Some pilots are drivers.
II. There are no pilot drivers.
- 1Either conclusion I or II follows.true
- 2Only conclusion I follows.false
- 3Neither conclusion I nor conclusion II follows.false
- 4Only conclusion II follows.false
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