Engineering Entrance

Q. What is the length of an arc of a circle with a radius of 10 cm and a central angle of 60 degrees? (2021) 2021
  • A. 10.47 cm
  • B. 15.71 cm
  • C. 20.94 cm
  • D. 25.13 cm
Q. What is the length of an arc of a circle with a radius of 4 cm and a central angle of 90 degrees? (2021)
  • A. 2π cm
  • B. 4π cm
  • C. π cm
  • D. 8 cm
Q. What is the length of an arc of a circle with a radius of 5 cm and a central angle of 60 degrees? (2020)
  • A. 5.24 cm
  • B. 3.14 cm
  • C. 5.00 cm
  • D. 10.47 cm
Q. What is the length of an arc of a circle with radius 5 cm and angle 60 degrees? (2020)
  • A. 5.24 cm
  • B. 3.14 cm
  • C. 5.00 cm
  • D. 6.00 cm
Q. What is the length of the diagonal of a rectangle with vertices at (0, 0), (4, 0), (4, 3), and (0, 3)? (2021)
  • A. 5
  • B. 6
  • C. 7
  • D. 8
Q. What is the length of the diagonal of a rectangle with vertices at (1, 1), (1, 4), (5, 1), and (5, 4)? (2021)
  • A. 4
  • B. 5
  • C. 6
  • D. 7
Q. What is the magnetic field inside a long solenoid? (2023)
  • A. Zero
  • B. Uniform and parallel
  • C. Concentric circles
  • D. Decreasing
Q. What is the main characteristic of elastomers?
  • A. Brittle
  • B. Elastic
  • C. Rigid
  • D. Transparent
Q. What is the main component of natural rubber?
  • A. Polyisoprene
  • B. Polystyrene
  • C. Polyethylene
  • D. Polyvinyl acetate
Q. What is the main function of lipids in the body?
  • A. Energy storage
  • B. Genetic information
  • C. Structural support
  • D. Transport
Q. What is the main product of the combustion of hydrocarbons? (2023) 2023
  • A. Oxygen
  • B. Water
  • C. Carbon Dioxide
  • D. Nitrogen
Q. What is the main product of the complete combustion of methane? (2023)
  • A. Carbon dioxide and water
  • B. Carbon monoxide and water
  • C. Carbon and hydrogen
  • D. Oxygen and water
Q. What is the main product of the oxidation of ethanol?
  • A. Acetic acid
  • B. Formic acid
  • C. Butanoic acid
  • D. Propanoic acid
Q. What is the main product when an amine reacts with an acyl chloride?
  • A. Amide
  • B. Ester
  • C. Alcohol
  • D. Aldehyde
Q. What is the main product when an amine reacts with an alkyl halide?
  • A. Amide
  • B. Quaternary ammonium salt
  • C. Alcohol
  • D. Ester
Q. What is the main product when ethene reacts with bromine?
  • A. Bromethane
  • B. 1,2-Dibromoethane
  • C. Ethane
  • D. Bromoethane
Q. What is the main product when ethene reacts with hydrogen in the presence of a catalyst?
  • A. Ethane
  • B. Ethanol
  • C. Ethyl chloride
  • D. Acetylene
Q. What is the main product when phenol is treated with bromine?
  • A. Bromobenzene
  • B. Bromophenol
  • C. Benzene
  • D. Bromobutane
Q. What is the main product when phenol reacts with bromine? (2019)
  • A. Bromobenzene
  • B. Bromophenol
  • C. Benzene
  • D. No reaction
Q. What is the main product when phenol reacts with sodium hydroxide?
  • A. Sodium phenoxide
  • B. Sodium benzoate
  • C. Benzene
  • D. Phenyl acetate
Q. What is the main product when propan-2-one is treated with iodine in the presence of a base?
  • A. Iodoform
  • B. Acetone
  • C. Bromoform
  • D. Chloroform
Q. What is the main reaction of phenols with sodium hydroxide? (2020)
  • A. Formation of sodium phenoxide
  • B. Formation of ether
  • C. Formation of alcohol
  • D. Formation of ketone
Q. What is the main type of reaction that haloalkanes undergo? (2020)
  • A. Addition
  • B. Substitution
  • C. Elimination
  • D. Redox
Q. What is the main use of citric acid?
  • A. Preservative
  • B. Flavoring agent
  • C. Cleaning agent
  • D. All of the above
Q. What is the major product when 2-bromobutane is treated with KOH in ethanol?
  • A. But-1-ene
  • B. But-2-ene
  • C. Butane
  • D. No reaction
Q. What is the mass of 3 moles of NaCl? (2020) 2020
  • A. 87 g
  • B. 58.5 g
  • C. 174 g
  • D. 3 g
Q. What is the mass of 3 moles of sodium chloride (NaCl)? (2023)
  • A. 58.5 g
  • B. 117 g
  • C. 175.5 g
  • D. 29.25 g
Q. What is the mass of NaOH required to prepare 0.5 L of a 1 M solution? (2023)
  • A. 20 g
  • B. 40 g
  • C. 10 g
  • D. 30 g
Q. What is the mass of solute in grams in a 3 M solution of NaCl in 1 L of solution? (2023)
  • A. 58.44 g
  • B. 174.32 g
  • C. 29.22 g
  • D. 87.16 g
Q. What is the mass of solute in grams required to make 1 L of a 0.1 M solution of NaCl? (Molar mass of NaCl = 58.5 g/mol) (2021)
  • A. 5.85 g
  • B. 10 g
  • C. 1 g
  • D. 2 g
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