IIT JEE Practice Question and Answer
8Q: The p wave of a normal Electrocardiogram indicates 1462 05b5cc6aae4d2b4197774cf89
5b5cc6aae4d2b4197774cf89- 1atrial depolarizationtrue
- 2Ventricular repolarizationfalse
- 3atrial repolarizationfalse
- 4Ventricular depolarizationfalse
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Answer : 1. "atrial depolarization"
Explanation :
Answer: A) atrial depolarization Explanation: The P wave in the ECG represents atrial depolarization, which results in atrial contraction, or atrial systole. The P wave is a summation wave generated by the depolarization front as it transits the atria.
Q: "International Day for Disaster Reduction" was observed across the world on _____ ? 1462 05b5cc6c1e4d2b4197774db64
5b5cc6c1e4d2b4197774db64- 116 Octoberfalse
- 215 Octoberfalse
- 314 Octoberfalse
- 413 Octobertrue
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Answer : 4. "13 October"
Explanation :
Answer: D) 13 October Explanation: International Day for Disaster Reduction, held every 13 October, celebrates how people and communities around the world are reducing their exposure to disasters. The year 2017 focus is : Reducing the number of affected people by disasters by 2030.
Q: Pressure, pain, and temperature receptors in the skin are 1461 05b5cc69ce4d2b4197774c867
5b5cc69ce4d2b4197774c867- 1Exteroceptorstrue
- 2Proprioceptorsfalse
- 3Interoceptorsfalse
- 4Mechanoreceptorsfalse
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Answer : 1. "Exteroceptors"
Explanation :
Answer: A) Exteroceptors Explanation:
Q: What gas makes up most of the atmosphere? 1461 05b5cc636e4d2b4197774ba48
5b5cc636e4d2b4197774ba48- 1Oxygenfalse
- 2Heliumfalse
- 3Nitrogentrue
- 4Carbondioxidefalse
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Answer : 3. "Nitrogen"
Explanation :
Answer: C) Nitrogen Explanation: Our atmosphere is made up of 78% Nitrogen, 21% Oxygen and 1% all other gases like argon, carbon dioxide, neon, and helium. So, Nitrogen makes up the majority of our atmosphere.
Q: A duster is of dimension 5x5x7 all in cms, is sinked into a cylindrical vessel of radius 5 cm and height 10 cm. After insertion the level of the water is inccresed by 2.14 cm. Then by what percentage the part of the duster is above the layer ? 1461 05b5cc705e4d2b4197774f216
5b5cc705e4d2b4197774f216- 196 %false
- 24 %true
- 397 %false
- 43 %false
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Answer : 2. "4 %"
Explanation :
Answer: B) 4 % Explanation: Imension of the duster is assumed as 5x5x7 cm3 Volume of the duster below the water layer= volume of water increased= πxrxrxh = 3.14×52×2.14 ≈ 168 cm3 Total volume of the duster = 5×5×7 = 175 cm3 Percentage of the duster part below the layer = 168×100/175 = 96% Percentage of the duster part above the layer = 4%
Q: Which is called 'OFF State' in binary? 1461 05b5cc6b3e4d2b4197774d423
5b5cc6b3e4d2b4197774d423- 14false
- 23false
- 32false
- 41true
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Answer : 4. "1"
Explanation :
Answer: D) 1 Explanation: '0' is called OFF State in Binary...
Q: Which Temple has been awarded the ‘most visited place of the world’ by 'World Book of Records' (WBR)? 1461 05b5cc6bde4d2b4197774d91f
5b5cc6bde4d2b4197774d91f- 1Vaishnodevi templefalse
- 2Golden Templetrue
- 3Meenakshi Templefalse
- 4Rawli Maharaj Templefalse
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Answer : 2. "Golden Temple"
Explanation :
Answer: B) Golden Temple Explanation: WBR that is World Book of Records, the London based organization that focuses on maintaining and cataloging the world records has awarded the title of 'Most visited place in the World' to the famous Golden Temple. This holy Shrine has recorded quite an uplift after the successful Heritage street project carried out by the Amritsar department. Sri Harmandir Sahib, also known as Golden Temple and the Darbar Sahib, is the holiest Gurdwara and the most important pilgrimage site of Sikhism. It is located in the city of Amritsar, Punjab, India.
Q: A,B,C,D,E,F,G and H are sitting around a circular table facing the centre but not necessarily in the same order. G sits third to the right of C. E is second to the right of G and 4th to the right of H. B is fourth to the right of C. D is not an immediate neighbour of E. A and C are immediate neighbours. Which of the following is/are correct ? 1460 05b5cc6c5e4d2b4197774dd46
5b5cc6c5e4d2b4197774dd46- 1F is third to the left of Bfalse
- 2F is second to the right of Btrue
- 3B is an immediate neighbour of Dfalse
- 4All of the abovefalse
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Answer : 2. "F is second to the right of B"
Explanation :
Answer: B) F is second to the right of B Explanation: From the given information, the circular arrangement is Here F is second to the right of B and the remaning all are wrong.

