IIT JEE Practice Question and Answer
8Q: Which State's chief minister has announced five lakh rupees health-cum-life insurance scheme for farmers in the state? 1493 05b5cc6a6e4d2b4197774cdcf
5b5cc6a6e4d2b4197774cdcf- 1Telanganatrue
- 2Uttar Pradeshfalse
- 3Gujaratfalse
- 4Andhra Pradeshfalse
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Answer : 1. "Telangana"
Explanation :
Answer: A) Telangana Explanation:
Q: What is the main function of an ignition safety switch? 1493 05b5cc683e4d2b4197774c2c6
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Answer :
Explanation :
An ignition safety switch is a safety device can shut off the engine if the operator falls off the PWC or out of the powerboat, or is otherwise thrown from the proper operating position. How it works: It allows the engine of the vehicle to shut off or to be turned off immediately as it is to prevent further complications to happen as this is being used when an emergency is launched Where it is used: Most powerboats and PWCs come equipped by the manufacturer with an emergency engine cut-off switch.
Q: K can lay Highway road between two cities in 16 days. L can do the same job in 12 days. With the help of M, they completes the job in 4 days. How much days does it take for M alone to complete the work ? 1492 05b5cc6cfe4d2b4197774e32d
5b5cc6cfe4d2b4197774e32d- 147/7 daysfalse
- 259/6 daysfalse
- 348/5 daystrue
- 457/5 daysfalse
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Answer : 3. "48/5 days"
Explanation :
Answer: C) 48/5 days Explanation: Amount of work K can do in 1 day = 1/16 Amount of work L can do in 1 day = 1/12 Amount of work K, L and M can together do in 1 day = 1/4 Amount of work M can do in 1 day = 1/4 - (1/16 + 1/12) = 3/16 – 1/12 = 5/48 => Hence M can do the job on 48/5 days = 9 (3/5) days
Q: Change Active Voice to Passive Voice? Active voice : Has he completed the work? 1492 05b5cc6a2e4d2b4197774cbe6
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Answer :
Explanation :
Passive Voice : Has the work been completed by him? Rules in changing from Active voice to Passive voice : 1. Identify the subject, the verb and the object: S+V+O 2. Change the object into subject 3. Put the suitable helping verb or auxiliary verb 4. Change the verb into past participle of the verb 5. Add the preposition "by" 6. Change the subject into object.
Q: Who has become the first batsman to score three double tons in One Day Internationals? 1492 05b5cc6bae4d2b4197774d7c1
5b5cc6bae4d2b4197774d7c1- 1Virat Kohlifalse
- 2AB de Villiersfalse
- 3Chris Gaylefalse
- 4Rohith Sharmatrue
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Answer : 4. "Rohith Sharma"
Explanation :
Answer: D) Rohith Sharma Explanation:
Q: Which country imports the most metals? 1492 05b5cc655e4d2b4197774bd94
5b5cc655e4d2b4197774bd94- 1Chinafalse
- 2Japantrue
- 3Africafalse
- 4Australiafalse
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Answer : 2. "Japan"
Explanation :
Answer: B) Japan Explanation:
Q: Two trains cross each other in _____ time ? 1491 05b5cc6d1e4d2b4197774e3a6
5b5cc6d1e4d2b4197774e3a6- 1145 secfalse
- 2124 secfalse
- 3158 secfalse
- 4162 sectrue
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Answer : 4. "162 sec"
Explanation :
Answer: D) 162 sec Explanation: Given two trains of length = 180 mts + 180 mts The distance is = Length of trains = 360 mts Speed = 58 - 50 = 8 kmph x 5/18 m/s Then, Time = dis/speed = (360x18) / (8x5) = 162 sec.
Q: What is the gram formula mass of Li2SO4? 1491 05b5cc67be4d2b4197774c1d1
5b5cc67be4d2b4197774c1d1- 1101.2487false
- 2109.9446true
- 3111.2687false
- 4106.5871false
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Answer : 2. "109.9446"
Explanation :
Answer: B) 109.9446 Explanation: The term gram formula mass is synonymous with molecular mass. So, to get this, we must add molar mass of all the elements in this compound. Given compound is Lithium Sulphate - Li2SO4 Elemental calculation :: Li - Lithium - 6.941 - 2 - 13.88200 %S - Sulfur - 32.065 - 1 - 32.065 %O - Oxygen - 15.9994 - 4 - 63.9976 % Now, total = 12.6264 + 29.1647 + 58.2090 = 109.9446 Hence, the gram formula mass of Li2SO4 = 109.9446.

