Airforce Group X 2021 Paper with Answer key 13 July
Airforce Group X
Airforce Group X2021Memory-based Airforce Group X paper from 13 July 2021, Shift 1: 70 questions on English, Physics and Maths, with the correct option given for each.
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About this paper
This is a memory-based recollection of the Indian Air Force Airmen Group X exam held on 13 July 2021 (Shift 1), not an official question paper. It has 70 multiple-choice questions: 1–20 on English, 21–45 on Physics and 46–70 on Mathematics, with the correct option printed below each question. The English part tests noun forms, articles, prepositions, voice, narration and spelling, and ends with a passage about a miser whose buried gold is stolen. Physics covers thermodynamics, optics, current electricity, magnetism and the de Broglie wavelength; Maths covers trigonometry, functions, calculus, sets, conic sections and matrices. No marks or time limit are printed.
- Exam
- Airforce Group X
- Subject
- Airforce Group X
- Year
- 2021
- Questions
- 70
- Pages
- 14
- Answers included
- Yes
Paper pattern
Questions 1–20
English: grammar, vocabulary, voice, narration, spelling and a reading passage
Questions 21–45
Physics
Questions 46–70
Mathematics
Topics covered
- Articles, prepositions and agreement
- Voice and narration
- Reading comprehension
- Thermodynamics and Carnot engine
- Refraction and mirrors
- Current electricity
- Dual nature of matter
- Motion, work and power
- Trigonometry
- Differentiation and integration
- Conic sections and circles
- Matrices and determinants
Questions from this paper
- A Carnot heat engine takes heat from a reservoir at 127 °C and rejects heat to a sink at 27 °C. What is its efficiency?
- If the absolute refractive indices of glass and water are 3/2 and 4/3 respectively, what is the ratio of the velocity of light in glass to that in water?
- A car travels one-third of a distance at 60 km/h and the remaining distance at 30 km/h. What is its average speed for the whole journey?
- How many three-digit numbers can be formed with the digits 1, 2, 3 and 4 when repetition is allowed?
- What is the solution of the differential equation x dy − y dx = 0?
- Change into the passive voice: The cobbler was mending my shoes.
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