Defence Exams

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Q. What is the primary role of chloroplasts in plant cells?
  • A. Energy production
  • B. Photosynthesis
  • C. Cell division
  • D. Respiration
Q. What is the primary role of red blood cells?
  • A. To fight infections
  • B. To transport oxygen
  • C. To clot blood
  • D. To produce hormones
Q. What is the primary role of xylem in plants? (2022)
  • A. Transport of nutrients
  • B. Transport of water
  • C. Photosynthesis
  • D. Storage of food
Q. What is the primary source of energy for the Earth's climate system?
  • A. The Moon
  • B. The Sun
  • C. Geothermal energy
  • D. Nuclear energy
Q. What is the primary source of energy in a balanced diet?
  • A. Proteins
  • B. Carbohydrates
  • C. Fats
  • D. Vitamins
Q. What is the primary state of matter in the Earth's outer core? (2019)
  • A. Solid
  • B. Liquid
  • C. Gas
  • D. Plasma
Q. What is the primary state of matter that has a definite shape and volume?
  • A. Gas
  • B. Liquid
  • C. Solid
  • D. Plasma
Q. What is the primary use of aluminum in construction?
  • A. Electrical wiring
  • B. Structural components
  • C. Piping
  • D. Insulation
Q. What is the probability of a person being diagnosed with a disease if the prevalence of the disease in a population is 2% and the test for the disease has a sensitivity of 90% and a specificity of 95%? (2021)
  • A. 0.018
  • B. 0.020
  • C. 0.090
  • D. 0.095
Q. What is the probability of a person being infected with a disease if the prevalence of the disease in a population is 2%? (2021)
  • A. 0.02
  • B. 0.5
  • C. 0.1
  • D. 0.03
Q. What is the probability of drawing a heart from a standard deck of cards? (2022)
  • A. 1/4
  • B. 1/13
  • C. 1/52
  • D. 3/52
Q. What is the probability of rolling a sum of 7 with two six-sided dice? (2022)
  • A. 1/6
  • B. 1/12
  • C. 1/36
  • D. 5/36
Q. What is the process by which plants lose water vapor called? (2019)
  • A. Transpiration
  • B. Evaporation
  • C. Condensation
  • D. Photosynthesis
Q. What is the process by which plants lose water vapor through small openings in their leaves called? (2019)
  • A. Transpiration
  • B. Evaporation
  • C. Condensation
  • D. Photosynthesis
Q. What is the process by which plants lose water vapor to the atmosphere?
  • A. Transpiration
  • B. Evaporation
  • C. Condensation
  • D. Precipitation
Q. What is the product of the first five prime numbers? (2023)
  • A. 30
  • B. 60
  • C. 210
  • D. 120
Q. What is the product of the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)? (2022)
  • A. Sodium chloride and water
  • B. Sodium chloride and hydrogen
  • C. Hydrogen and oxygen
  • D. Sodium and water
Q. What is the product of the reaction between hydrochloric acid and sodium bicarbonate? (2022)
  • A. Sodium chloride
  • B. Carbon dioxide
  • C. Water
  • D. All of the above
Q. What is the product of the reaction between sodium (Na) and chlorine (Cl2)? (2019)
  • A. NaCl
  • B. NaCl2
  • C. Na2Cl
  • D. Na2Cl2
Q. What is the product of the roots of the equation 2x^2 - 8x + 6 = 0?
  • A. 3
  • B. 2
  • C. 1
  • D. 4
Q. What is the product of the roots of the equation x² - 4x + 3 = 0? (2021)
  • A. 3
  • B. 4
  • C. 2
  • D. 1
Q. What is the product of the roots of the equation x² - 7x + 10 = 0? (2023)
  • A. 10
  • B. 7
  • C. 5
  • D. 3
Q. What is the product of the roots of the quadratic equation 3x^2 - 12x + 9 = 0? (2023)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the product of the roots of the quadratic equation x^2 - 7x + 10 = 0? (2023)
  • A. 10
  • B. 7
  • C. 5
  • D. 3
Q. What is the product of the roots of the quadratic equation x² - 5x + 6 = 0? (2019)
  • A. 6
  • B. 5
  • C. 4
  • D. 3
Q. What is the projected economic growth rate for India in 2024 according to the IMF? (2024)
  • A. 5.5%
  • B. 6.0%
  • C. 6.5%
  • D. 7.0%
Q. What is the projected fiscal deficit of India for the year 2023? (2023)
  • A. 4.5%
  • B. 5.0%
  • C. 5.5%
  • D. 6.0%
Q. What is the projected population of India by the end of 2023? (2023)
  • A. 1.4 billion
  • B. 1.5 billion
  • C. 1.6 billion
  • D. 1.3 billion
Q. What is the projection of vector A = 3i + 4j onto vector B = 1i + 2j?
  • A. 2.5
  • B. 3
  • C. 4
  • D. 5
Q. What is the projection of vector A = 3i + 4j onto vector B = 2i + 0j?
  • A. 6
  • B. 3
  • C. 4
  • D. 0
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