Major Competitive Exams

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Q. Which of the following is true about the roots of a cubic function?
  • A. It can have at most two real roots.
  • B. It can have at most three real roots.
  • C. It can have no real roots.
  • D. It must have at least one real root.
Q. Which of the following is true about the roots of a polynomial of odd degree?
  • A. It has an even number of roots.
  • B. It has at least one real root.
  • C. It has no real roots.
  • D. It has exactly two real roots.
Q. Which of the following is true about the roots of the polynomial P(x) = x^2 + 4x + 4?
  • A. It has two distinct real roots.
  • B. It has one real root with multiplicity 2.
  • C. It has no real roots.
  • D. It has two complex roots.
Q. Which of the following is true about the roots of the polynomial x^2 + 4x + 4?
  • A. It has two distinct real roots.
  • B. It has one real root with multiplicity 2.
  • C. It has no real roots.
  • D. It has two complex roots.
Q. Which of the following is true about the shear modulus of a material? (2023)
  • A. It measures the material's response to shear stress
  • B. It is always greater than Young's modulus
  • C. It is independent of temperature
  • D. It is the same as bulk modulus
Q. Which of the following is true about viruses? (2022)
  • A. They are prokaryotic
  • B. They can reproduce independently
  • C. They are acellular
  • D. They have a cellular structure
Q. Which of the following is true for a satellite in a low Earth orbit?
  • A. It has a very high orbital speed
  • B. It has a very low orbital speed
  • C. It does not experience any gravitational force
  • D. It is not affected by atmospheric drag
Q. Which of the following is true for all angles A?
  • A. sin^2 A + cos^2 A = 1
  • B. tan A = sin A/cos A
  • C. sec A = 1/cos A
  • D. All of the above
Q. Which of the following is true for an endothermic reaction?
  • A. Heat is released
  • B. ΔH is negative
  • C. ΔH is positive
  • D. The reaction is spontaneous
Q. Which of the following is true for log_a(b) + log_a(c)?
  • A. log_a(bc)
  • B. log_a(b/c)
  • C. log_a(b-c)
  • D. log_a(b+c)
Q. Which of the following is true for log_a(bc)?
  • A. log_a(b) + log_a(c)
  • B. log_a(b) - log_a(c)
  • C. log_a(bc) = log_a(b) * log_a(c)
  • D. None of the above
Q. Which of the following is true for the expression 2^(x+1) / 2^(x-1)? (2023)
  • A. 2^2
  • B. 2^0
  • C. 2^1
  • D. 2^3
Q. Which of the following is true for the expression 2^(x+3) = 8? (2023)
  • A. x = 1
  • B. x = 2
  • C. x = 3
  • D. x = 0
Q. Which of the following is true for the expression 4^(x+1) = 16? (2023)
  • A. x = 1
  • B. x = 2
  • C. x = 3
  • D. x = 0
Q. Which of the following is true for the identity (a + b)³?
  • A. a³ + b³
  • B. a³ + 3a²b + 3ab² + b³
  • C. a² + b²
  • D. 3ab
Q. Which of the following is true for the identity (x + y)²?
  • A. x² + y²
  • B. x² + 2xy + y²
  • C. x² - 2xy + y²
  • D. 2xy
Q. Which of the following is used as a flavoring agent in food? (2019)
  • A. Vanillin
  • B. Acetic acid
  • C. Sodium bicarbonate
  • D. Calcium sulfate
Q. Which of the following is used to create a p-n junction? (2020)
  • A. Doping
  • B. Ionization
  • C. Sublimation
  • D. Condensation
Q. Which of the following isotopes is commonly used in nuclear reactors? (2021)
  • A. Uranium-238
  • B. Carbon-12
  • C. Hydrogen-1
  • D. Oxygen-16
Q. Which of the following kingdoms includes multicellular organisms that are autotrophic?
  • A. Monera
  • B. Fungi
  • C. Plantae
  • D. Animalia
Q. Which of the following kingdoms includes organisms that are primarily autotrophic? (2019)
  • A. Animalia
  • B. Fungi
  • C. Plantae
  • D. Protista
Q. Which of the following kingdoms includes organisms that can be both autotrophic and heterotrophic? (2019)
  • A. Monera
  • B. Fungi
  • C. Plantae
  • D. Protista
Q. Which of the following kingdoms includes organisms that can be both unicellular and multicellular? (2022)
  • A. Monera
  • B. Fungi
  • C. Plantae
  • D. Protista
Q. Which of the following kingdoms includes unicellular organisms? (2020)
  • A. Animalia
  • B. Plantae
  • C. Fungi
  • D. Protista
Q. Which of the following kingdoms was known for its extensive trade routes connecting India to the Mediterranean?
  • A. Maurya
  • B. Gupta
  • C. Kushana
  • D. Chola
Q. Which of the following landforms is a result of glacial activity?
  • A. Valley
  • B. Cave
  • C. Fjord
  • D. Plateau
Q. Which of the following landforms is created by the action of glaciers?
  • A. Delta
  • B. Moraine
  • C. Alluvial plain
  • D. Loess
Q. Which of the following landforms is formed by the deposition of sediment by rivers?
  • A. Delta
  • B. Mountain
  • C. Plateau
  • D. Valley
Q. Which of the following lanthanides is used in making strong permanent magnets?
  • A. Cerium
  • B. Neodymium
  • C. Samarium
  • D. Europium
Q. Which of the following layers is liquid? (2019)
  • A. Crust
  • B. Mantle
  • C. Outer Core
  • D. Inner Core
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