IIT JEE Practice Question and Answer
8Q: Valve between the left ventricle and Aorta? 1418 05b5cc695e4d2b4197774c4e6
5b5cc695e4d2b4197774c4e6- 1Pulmonic valvefalse
- 2Tricuspid valvefalse
- 3Aortic valvetrue
- 4Mitral valvefalse
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Answer : 3. "Aortic valve"
Explanation :
Answer: C) Aortic valve Explanation: The Aortic valve - located between the left ventricle and the aorta The Mitral valve - located between the left atrium and left ventricle The Tricuspid valve - located between the right atrium and the right ventricle (and) The Pulmonary (pulmonic) valve - located between the right ventricle and the pulmonary artery.
Q: 3 x 3 + 3 - 3 + 3 = ? 1418 05b5cc65ee4d2b4197774be59
5b5cc65ee4d2b4197774be59- 19false
- 212true
- 3-3false
- 43false
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Answer : 2. "12"
Explanation :
Answer: B) 12 Explanation: Using BODMAS law, 3 x 3 + 3 - 3 + 3 = 3 x 3 = 12 = 12 + 3 - 3 + 3 = 9 + 3 = 12 Hence, 3 x 3 + 3 - 3 + 3 = 12.
Q: The main result of aerobic respiration is the 1418 05b5cc632e4d2b4197774b9ae
5b5cc632e4d2b4197774b9ae- 1production of lactic acid as an end productfalse
- 2production of ATP from the breakdown of glucosetrue
- 3conversion of radiant energy into chemical energyfalse
- 4storage of energy in a polysaccharidefalse
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Answer : 2. "production of ATP from the breakdown of glucose"
Explanation :
Answer: B) production of ATP from the breakdown of glucose Explanation: The three steps within the aerobic respiration process are glycolysis, the citric acid cycle, and oxidative phosphorylation. Photosynthesis builds glucose, and what was built in photosynthesis is broken down during aerobic respiration. Hence, production of ATP from the breakdown of glucose is the main result of aerobic respiration.
Q: Which award the Electronic Vaccine Intelligence Network (EVIN) app won in 2017 ? 1417 05b5cc6d3e4d2b4197774e48a
5b5cc6d3e4d2b4197774e48a- 1Padma Awardfalse
- 2GSMA Asia Mobile Awardtrue
- 3Best app of the yearfalse
- 4National Awardfalse
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Answer : 2. "GSMA Asia Mobile Award"
Explanation :
Answer: B) GSMA Asia Mobile Award Explanation:
Q: A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of 1417 05b5cc6a6e4d2b4197774cda7
5b5cc6a6e4d2b4197774cda7- 118 m/sfalse
- 225 m/sfalse
- 330 m/strue
- 436 m/sfalse
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Answer : 3. "30 m/s"
Explanation :
Answer: C) 30 m/s Explanation: The interval between object pass the same point is 4 sec. That means in 2 sec, object reaches the top and in next 2 sec, it again reaches the same point. By the info given, we can find the velocity of that point by using : v=u+(-gt) 0= u - 10×2 u = 20 Then the velocity at 25m is 20m/sec. so the initial velocity is -v2 = u2 + (-2gh)400 = u2 - 2x 10 x 25u2 = 900 => u = 30 m/s
Q: Which of the following uses a Non Renewable Energy Source? 1417 15b5cc6abe4d2b4197774d039
5b5cc6abe4d2b4197774d039- 1Wind Mill Power Plantfalse
- 2Hydro Electric Plantfalse
- 3Nuclear Power Planttrue
- 4Tidal Power Plantfalse
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Answer : 3. "Nuclear Power Plant"
Explanation :
Answer: C) Nuclear Power Plant Explanation: Nuclear Power Plant uses a Non Renewable Energy Source. Non-renewable energy is that source of energy which can not be used again and again. This sort of energy is sustainable to exhaustion. Non renewable energy is that form of energy which is subject to deletion. This type of energy is of many uses to us. It can be used to produce electricity, heating, cooking, transportation and manufacturing. 85% of the energy used in the industrial processes is form the non-renewable type of energy.
Q: A power that is vested in the president is 1417 05b5cc651e4d2b4197774bd32
5b5cc651e4d2b4197774bd32- 1legally guaranteed by the Supreme Courtfalse
- 2legally guaranteed by the Constitutiontrue
- 3subject to approval by the Housefalse
- 4subject to approval by the Senatefalse
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Answer : 2. "legally guaranteed by the Constitution"
Explanation :
Answer: B) legally guaranteed by the Constitution Explanation:
Q: A motorboat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the motorboat and speed of the water current respectively? 1417 05b5cc6bde4d2b4197774d91a
5b5cc6bde4d2b4197774d91a- 13:7false
- 27:9false
- 35:4false
- 48:3true
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Answer : 4. "8:3"
Explanation :
Answer: D) 8:3 Explanation: Let the man's rate upstream be x kmph and that downstream be y kmph. Then, distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs. x x 8 4 = (y x 4) 5 44 x =4y 5 y = 11 x. 5 Required ratio = y + x : y - x 2 2 = 16x x 1 : 6x x 1 5 2 5 2 = 8 : 3 5 5 = 8 : 3.

