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MCQs

Total Questions : 1058 | Page 78 of 106 pages
Question 771. The behavior of super-heated vapour is similar to that of
  1.    Ordinary gas
  2.    Perfect gas
  3.    Steam
  4.    Air
 Discuss Question
Answer: Option B. -> Perfect gas
Question 772. The fuel mostly used in cement industry and in metallurgical processes is
  1.    Pulverized coal
  2.    Coke
  3.    Wood charcoal
  4.    Bituminous coke
 Discuss Question
Answer: Option A. -> Pulverized coal
Question 773. The value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is
  1.    8314 kgfm/mol °K
  2.    29.27 kgfm/mol °K
  3.    848 kgfm/mol °K
  4.    427 kgfm/mol °K
 Discuss Question
Answer: Option C. -> 848 kgfm/mol °K
Question 774. The value of gas constant (R) in S. I. units is
  1.    28.7 J/kgK
  2.    287 J/kgK
  3.    2.87 J/kgK
  4.    0.287 J/kgK
 Discuss Question
Answer: Option B. -> 287 J/kgK
Question 775. The first law of thermodynamics is the law of
  1.    Conservation of momentum
  2.    Conservation of heat
  3.    Conservation of mass
  4.    Conservation of energy
 Discuss Question
Answer: Option D. -> Conservation of energy
Question 776. The hard coke is obtained when carbonization of coal is carried out at
  1.    700° to 900°C
  2.    500° to 700°C
  3.    900° to 1100°C
  4.    300° to 500°C
 Discuss Question
Answer: Option C. -> 900° to 1100°C
Question 777. The volumetric or molar specific heat at constant pressure is the product of
  1.    Molecular mass of the gas and the gas constant
  2.    None of the listed here
  3.    Atomic mass of the gas and the gas constant
  4.    Molecular mass of the gas and the specific heat at constant volume
 Discuss Question
Answer: Option B. -> None of the listed here
Question 778. The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained in a unit volume of gas.
  1.    Three-forth
  2.    Two-third
  3.    One-third
  4.    One-half
 Discuss Question
Answer: Option B. -> Two-third
Question 779. The universal gas constant (or molar constant) of a gas is the product of
  1.    Molecular mass of the gas and the specific heat at constant pressure
  2.    Molecular mass of the gas and the gas constant
  3.    Molecular mass of the gas and the specific heat at constant volume
  4.    Atomic mass of the gas and the gas constant
 Discuss Question
Answer: Option B. -> Molecular mass of the gas and the gas constant
Question 780. If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant
  1.    Temperature
  2.    Pressure
  3.    Enthalpy
  4.    Volume
 Discuss Question
Answer: Option D. -> Volume

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