Defence Exams

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Q. If a plant with genotype Aa is crossed with a plant with genotype aa, what is the expected genotypic ratio of the offspring?
  • A. 1:1
  • B. 3:1
  • C. 1:2:1
  • D. 2:1
Q. If a plant with genotype Aa is crossed with a plant with genotype aa, what is the expected phenotypic ratio of the offspring?
  • A. 1:1
  • B. 3:1
  • C. 2:1
  • D. 1:2
Q. If a plant with genotype Aa is crossed with another plant of genotype Aa, what is the probability of obtaining a homozygous dominant offspring?
  • A. 0%
  • B. 25%
  • C. 50%
  • D. 100%
Q. If a plant with genotype AaBb is crossed with another plant of genotype Aabb, what is the probability of obtaining an offspring with genotype Aabb?
  • A. 0%
  • B. 25%
  • C. 50%
  • D. 75%
Q. If a plant with genotype Bb is crossed with a plant with genotype bb, what is the expected phenotypic ratio of the offspring?
  • A. 1:0
  • B. 1:1
  • C. 2:1
  • D. 3:1
Q. If a plant with genotype Tt is crossed with a plant of genotype tt, what fraction of the offspring will be tall?
  • A. 0
  • B. 1/4
  • C. 1/2
  • D. 3/4
Q. If a player has a batting average of 50 and has played 20 matches, how many runs has he scored in total? (2021)
  • A. 1000
  • B. 800
  • C. 600
  • D. 500
Q. If a player runs 5 km in 25 minutes, what is his speed in km/h? (2022)
  • A. 10 km/h
  • B. 12 km/h
  • C. 15 km/h
  • D. 20 km/h
Q. If a political party needs 50% of the total seats in the Lok Sabha to form a government, how many seats does it need if there are 545 total seats?
  • A. 272
  • B. 273
  • C. 274
  • D. 275
Q. If a population of 1,000 has a disease prevalence of 3%, how many individuals are expected to be affected? (2019)
  • A. 30
  • B. 25
  • C. 35
  • D. 40
Q. If a purebred red flower (RR) is crossed with a purebred white flower (rr), what will be the color of the flowers in the F1 generation?
  • A. Red
  • B. White
  • C. Pink
  • D. Purple
Q. If a purebred red flowered plant (RR) is crossed with a purebred white flowered plant (rr), what will be the phenotype of the F1 generation?
  • A. Red
  • B. White
  • C. Pink
  • D. Mixed
Q. If a radar can detect objects up to a distance of 100 km, what is the maximum area it can cover? (2022)
  • A. 31415.93 km²
  • B. 7853.98 km²
  • C. 10000 km²
  • D. 5000 km²
Q. If a radar can detect objects up to a distance of 50 km, what is the maximum area it can cover? (2022)
  • A. 7850 km²
  • B. 5000 km²
  • C. 10000 km²
  • D. 15000 km²
Q. If a radar system can detect objects up to 100 km away, how many meters is that? (2023)
  • A. 5000 m
  • B. 10000 m
  • C. 15000 m
  • D. 20000 m
Q. If a radar system can detect objects up to 100 km away, what is the maximum area it can cover? (2022)
  • A. 31415.93 km²
  • B. 7853.98 km²
  • C. 10000 km²
  • D. 5000 km²
Q. If a rectangle has a length of 10 cm and a width of 5 cm, what is its perimeter? (2022)
  • A. 30 cm
  • B. 25 cm
  • C. 20 cm
  • D. 15 cm
Q. If a rectangle has a length of 10 cm and a width of 5 cm, what is the area of the rectangle? (2022)
  • A. 50 cm²
  • B. 55 cm²
  • C. 60 cm²
  • D. 65 cm²
Q. If a rectangle has a length of 10 m and a width of 5 m, what is its perimeter? (2023)
  • A. 30 m
  • B. 25 m
  • C. 20 m
  • D. 15 m
Q. If a rectangle has a length of 10 units and a width of 5 units, what is its perimeter?
  • A. 30
  • B. 40
  • C. 50
  • D. 20
Q. If a rectangle has a length of 15 cm and a width of 10 cm, what is its perimeter? (2022)
  • A. 50 cm
  • B. 40 cm
  • C. 30 cm
  • D. 60 cm
Q. If a rectangle has a length of 8 cm and a width of 5 cm, what is its perimeter? (2022)
  • A. 26 cm
  • B. 30 cm
  • C. 40 cm
  • D. 20 cm
Q. If a rectangle has a length of 8 m and a width of 3 m, what is its perimeter? (2021)
  • A. 22 m
  • B. 24 m
  • C. 26 m
  • D. 30 m
Q. If a rectangle has a length of 8 units and a width of 3 units, what is its perimeter? (2023)
  • A. 22
  • B. 24
  • C. 20
  • D. 18
Q. If a rectangle has a length of 8 units and a width of 5 units, what is its perimeter? (2023)
  • A. 26
  • B. 30
  • C. 20
  • D. 24
Q. If a region receives 1200 mm of rainfall in a year, what is the average monthly rainfall? (2022)
  • A. 100 mm
  • B. 120 mm
  • C. 150 mm
  • D. 200 mm
Q. If a right triangle has legs of lengths 3 cm and 4 cm, what is the length of the hypotenuse?
  • A. 5 cm
  • B. 6 cm
  • C. 7 cm
  • D. 8 cm
Q. If a right triangle has legs of lengths 6 and 8, what is the length of the hypotenuse?
  • A. 10 units
  • B. 12 units
  • C. 14 units
  • D. 16 units
Q. If a river basin has an area of 2000 km² and receives an average rainfall of 800 mm per year, what is the total volume of water received by the basin in cubic meters? (2000)
  • A. 1600000000
  • B. 16000000
  • C. 160000000
  • D. 16000000000
Q. If a river basin has an area of 500 km² and receives an average rainfall of 800 mm annually, what is the total volume of water received by the basin in cubic meters? (2022)
  • A. 400,000,000 m³
  • B. 500,000,000 m³
  • C. 600,000,000 m³
  • D. 700,000,000 m³
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