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4th-9th February, 2019 MCQs - 1
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Ashish Singh is teaching live on Unacademy Plus

Ashish Singh
IB ACIO II- 2017(Mains Qualified), UPSC aspirant Exam cleared- SSC CPO (2014), SSC CGL Tier (2016 - Qualified for Mains), DSSSB (Mains)

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hello sir, sin15 and cos15 ki value kaise niklege
  1. 4th Feb - 8th Feb, 2019 By - Ashish Singh

  2. Ashish Singh VERIFIED Edit Profile IB ACIO II- 2017(Mains Qualified), UPSC aspirant Exam cleared-SSC CPO (2014), SSC CGL Tier (2016-Qualified for Mains), DSSSB (Mains) 17,740 Views in last 30 days 280,448 Lifetime Views 62 Courses 9.6k Followers28 Following NEWS Indian Polity By Ashish Singh By Ashish Singh By Ashish Singh February 2019: The Hindu Daily Editorial and Prelims Based... Hindi) February, 2019 The Hindu Daily Editorial and Prelims... (Hindi) Understanding Entire Polity Through MCQs 5 Lessons 5 Lessons 5 Lessons

  3. Q.1) 'Seleka Rebels' are associated with which of the following countries? a. Nigeria b. Central African Republic c. Ivory Coast d. Congo

  4. Solution (b) .S l ka CPSK-CPJP-UFDR is an alliance of rebel militia groups that subjugated the Central African Republic (CAR) on March 24, 2013. .After its official dissolution in September 2013, the remaining rebel groups became known as Ex-S l ka. S l ka leader Michel Djotodia became the nation's president from March 2013 until his resignation in January 2014. Members of S l ka are almost entirely Muslim

  5. . Q.2) 'Anti-balaka' militants is associated with a. Yemen b. Syria c. Djibouti d. Central African Republic

  6. Solution (d) The Anti-balaka is an alliance of militia groups based in the Central African Republic said to be composed primarily of Christians

  7. . Q.3) The term 'Customer Acceptance Test' was in news recently in the context of a. Mirage 2000 aircraft b. PM-KISAN c. E-Vehicles d. Train- 18

  8. Solution (a) Two pilots of the Indian Air Force (IAF) were killed on Friday after their Mirage 2000 fighter jet crashed during takeoff at the Hindustan Aeronautics Limited (HAL) airport here. .The French-origin trainer aircraft, manufactured by Dassault Aviation, was on an acceptance sortie after being upgraded at HAL, .an IAF spokesperson said in New Delhi. IAF has ordered a probe into the accident that comes four days after a Jaguar aircraft went down in Kushinagar, Uttar Pradesh. First inducted into IAF in 1984, Friday's crash was the 11th accident involving the Mirage 2000 fleet. The IAF is now left with 48 Mirage 2000 fighters. .

  9. Q.4) Consider the following statements with respect to the term 'Brumation 1. It is a dormant period when cold-blooded reptiles temporarily shut down all activity to conserve energy. 2. It is an innate behaviour for reptiles, regardless of the environment. .Select the correct statements: a. 1 Only b. 2 Only c. Both 1 and 2 d. Neither 1 nor 2

  10. Solution (c) Brumation, which is essentially the reptilian equivalent of hibernation, .is a dormant period when cold-blooded reptiles temporarily shut down all activity to conserve energy Brumation is an innate behavior for reptiles, meaning that their bodies tell them to do it naturally, regardless of environment. * Unlike hibernation in mammals, brumation is not a sleeping period for reptiles. Reptiles in brumation still need to drink water and may wake for several days at a time before returning to brumation Different reptiles brumate in different ways. Some tortoises burrow themselves as deep as 6 feet into the ground to wait out seasons Garter snakes huddle into groups to brumate, using their combined body heat to help each other survive.

  11. Q.5) Consider the following statements with respect to 'microbial fuel cell (MFC) 1. It harnesses the power of respiring microbes to convert organic substrates directly into electrical energy 2. It transforms chemical energy into electricity using oxidation reduction reactions . Select the correct statement a. 1Only b. 2 Only c. Both 1 and 2 d. Neither 1 nor 2

  12. Microbial fuel cells work by allowing bacteria to do what they do best, oxidize and reduce organic molecules. 'Bacterial respiration is basically one big redox reaction in which electrons are being moved around. .Whenever you have moving electrons, the potential exists for harnessing an electromotive force to perform useful work. A MFC consists of an anode and a cathode separated by a cation specific membrane. Microbes at the anode oxidize the organic fuel generating protons which pass through the membrane to the cathode, and electrons which pass through the anode to an external circuit to generate a current. . .The trick of course is collecting the electrons released by bacteria as they respire. This leads to two types of MFCs: 1. mediator and 2. mediatorless.