Q. Which law states that the rate of heat transfer through a material is proportional to the temperature gradient?
  • A. Newton's Law of Cooling
  • B. Fourier's Law of Heat Conduction
  • C. Stefan-Boltzmann Law
  • D. Kirchhoff's Law
Q. Which law states that the total energy in an isolated system remains constant?
  • A. Law of Conservation of Energy
  • B. Newton's First Law
  • C. Hooke's Law
  • D. Ohm's Law
Q. Which law states that the total energy of an isolated system remains constant?
  • A. First law of thermodynamics
  • B. Second law of thermodynamics
  • C. Zeroth law of thermodynamics
  • D. Third law of thermodynamics
Q. Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps taken?
  • A. First Law of Thermodynamics
  • B. Second Law of Thermodynamics
  • C. Hess's Law
  • D. Gibbs Free Energy
Q. Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction?
  • A. First Law of Thermodynamics
  • B. Second Law of Thermodynamics
  • C. Hess's Law
  • D. Gibbs Free Energy
Q. Which law states that the total entropy of an isolated system can never decrease over time?
  • A. Zeroth Law
  • B. First Law
  • C. Second Law
  • D. Third Law
Q. Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its components?
  • A. Dalton's Law
  • B. Boyle's Law
  • C. Charles's Law
  • D. Avogadro's Law
Q. Which law states that the volume of a gas is directly proportional to its temperature at constant pressure?
  • A. Boyle's Law
  • B. Charles's Law
  • C. Avogadro's Law
  • D. Ideal Gas Law
Q. Which level of protein structure is characterized by the arrangement of multiple polypeptide chains?
  • A. Primary structure
  • B. Secondary structure
  • C. Tertiary structure
  • D. Quaternary structure
Q. Which level of protein structure is characterized by the overall 3D shape of a single polypeptide chain?
  • A. Primary structure
  • B. Secondary structure
  • C. Tertiary structure
  • D. Quaternary structure
Q. Which logic gate is equivalent to an AND gate followed by a NOT gate?
  • A. OR
  • B. NAND
  • C. NOR
  • D. XOR
Q. Which logic gate is represented by the symbol '⊕'?
  • A. AND Gate
  • B. OR Gate
  • C. NAND Gate
  • D. XOR Gate
Q. Which logic gate outputs true only when all inputs are false?
  • A. AND
  • B. OR
  • C. NOR
  • D. NAND
Q. Which logic gate outputs true only when all inputs are true?
  • A. AND
  • B. OR
  • C. NOT
  • D. NAND
Q. Which logic gate outputs true only when all its inputs are true?
  • A. AND Gate
  • B. OR Gate
  • C. NOT Gate
  • D. NAND Gate
Q. Which logic gate outputs true only when both inputs are false?
  • A. AND
  • B. OR
  • C. NAND
  • D. NOR
Q. Which material has the highest resistivity?
  • A. Copper
  • B. Aluminum
  • C. Iron
  • D. Rubber
Q. Which material has the lowest resistivity?
  • A. Copper
  • B. Aluminum
  • C. Silver
  • D. Iron
Q. Which measure of dispersion is affected by extreme values?
  • A. Range
  • B. Variance
  • C. Standard Deviation
  • D. All of the above
Q. Which measure of dispersion is not affected by extreme values?
  • A. Range
  • B. Variance
  • C. Standard Deviation
  • D. Interquartile Range
Q. Which modulation technique is most commonly used in digital communication systems?
  • A. Amplitude Modulation (AM)
  • B. Frequency Modulation (FM)
  • C. Phase Shift Keying (PSK)
  • D. Quadrature Amplitude Modulation (QAM)
Q. Which modulation technique is most commonly used in FM radio broadcasting?
  • A. Amplitude Modulation
  • B. Frequency Modulation
  • C. Phase Modulation
  • D. Pulse Code Modulation
Q. Which modulation technique is most commonly used in television broadcasting?
  • A. Amplitude Modulation (AM)
  • B. Frequency Modulation (FM)
  • C. Phase Modulation (PM)
  • D. Pulse Code Modulation (PCM)
Q. Which modulation technique is used to transmit digital data over an analog channel?
  • A. AM
  • B. FM
  • C. PSK
  • D. ASK
Q. Which modulation technique varies the amplitude of the carrier signal?
  • A. Frequency Modulation
  • B. Amplitude Modulation
  • C. Phase Modulation
  • D. Pulse Modulation
Q. Which molecule exhibits sp hybridization?
  • A. CCl4
  • B. CO2
  • C. NH3
  • D. H2O
Q. Which molecule has a bent shape due to lone pairs?
  • A. CO2
  • B. O3
  • C. CH4
  • D. BF3
Q. Which molecule has a central atom with dsp3 hybridization?
  • A. SF6
  • B. PCl5
  • C. NH3
  • D. CCl4
Q. Which molecule has a central atom with sp hybridization?
  • A. CO2
  • B. H2O
  • C. NH3
  • D. CCl4
Q. Which molecule has a square planar geometry?
  • A. XeF4
  • B. SF4
  • C. ClF3
  • D. NH4+
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