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MCQs

Total Questions : 1634 | Page 7 of 164 pages
Question 61. Pressure of 0.01 psi (absolute) can be measured by __________ gauge.
  1.    Ionisation
  2.    Pirani
  3.    Mcloid
  4.    None of these
 Discuss Question
Answer: Option C. -> Mcloid
Question 62. Dome temperature of blast furnace stove is most accurately measured by a
  1.    Radiation pyrometer
  2.    Platinum-platinum/rhodium ther-mocuple
  3.    Iron-constantan thermocouple
  4.    Platinum resistance thermometer
 Discuss Question
Answer: Option B. -> Platinum-platinum/rhodium ther-mocuple
Question 63. Humidity of air can be determined by a
  1.    Chromatograph
  2.    Sling psychrometer
  3.    Mass spectrometer
  4.    Polarimeter
 Discuss Question
Answer: Option B. -> Sling psychrometer
Question 64. Thermodynamic celcius scale of temperature measurement is
  1.    Defined on the basis of melting point of ice and evaporation temperature of water vapor
  2.    Defined on the basis of melting point of ice and condensation temperature of water vapor
  3.    Having an interval of 100° between ice point to steam point
  4.    Both B and C
 Discuss Question
Answer: Option D. -> Both B and C
Question 65. Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant)
  1.    V/nRT
  2.    nRT/V
  3.    nRT/P
  4.    p/nRT
 Discuss Question
Answer: Option A. -> V/nRT
Question 66. Instrumentation in a plant offers the advantage of
  1.    Greater safety of operation
  2.    Better quality of product
  3.    Greater operation economy
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 67. Select the correct statement from the following.
  1.    The frequency response of a pure capacity process is unbounded
  2.    The phase lag of a pure time delay system decreases with increasing frequency
  3.    The amplitude ratio of a pure capacity process is inversely proportional to frequency
  4.    The amplitude ratio of a pure time delay system increases with frequency
 Discuss Question
Answer: Option C. -> The amplitude ratio of a pure capacity process is inversely proportional to frequency
Question 68. Liquid column manometers are used for measuring the pressure __________ kgf/cm² .
  1.    > 2(gage)
  2.    < 3 (gage)
  3.    < 10 (gage)
  4.    < atmospheric
 Discuss Question
Answer: Option B. -> < 3 (gage)
Question 69. Which of the following instruments is not used for measuring sub-zero (
  1.    Platinum resistance thermometer
  2.    Mercury in glass thermometer
  3.    Vapor pressure thermometer
  4.    Radiation pyrometer
 Discuss Question
Answer: Option D. -> Radiation pyrometer
Question 70. A non-linear chemical system is exemplified by a/an
  1.    Isothermal CSTR
  2.    Mixer
  3.    Non-isothermal CSTR
  4.    None of these
 Discuss Question
Answer: Option C. -> Non-isothermal CSTR

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