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MCQs

Total Questions : 120 | Page 9 of 12 pages
Question 81. Hot wire anemometer can be used to measure _________________
  1.    Flow rate of non-conducting liquid
  2.    Flow rate of conducting liquid
  3.    Liquid level measurement
  4.    pH of liquid
 Discuss Question
Answer: Option A. -> Flow rate of non-conducting liquid
Answer: (a).Flow rate of non-conducting liquid
Question 82. Which of the following represents opposition to heat flow?
  1.    Thermal resistance
  2.    Thermal opposition
  3.    Thermal reactance
  4.    Thermal barrier
 Discuss Question
Answer: Option A. -> Thermal resistance
Answer: (a).Thermal resistance
Question 83. SI unit of thermal conductivity is _____________
  1.    W/m K
  2.    W
  3.    K
  4.    W²/m K
 Discuss Question
Answer: Option A. -> W/m K
Answer: (a).W/m K
Question 84. Hot wire anemometer is an application of ___________________
  1.    Resistive transducer
  2.    Inductive transducer
  3.    Capacitive transducer
  4.    Thermo electric transducer
 Discuss Question
Answer: Option A. -> Resistive transducer
Answer: (a).Resistive transducer
Question 85. Which of the following factors affect thermal conductivity?
  1.    Temperature
  2.    Chemical phase
  3.    Thermal anisotropy
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 86. What is ‘Righi Leduc-effect’?
  1.    Effect of magnetic field on thermal conductivity
  2.    Effect of chemical phase on thermal conductivity
  3.    Effect of temperature on thermal conductivity
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Effect of magnetic field on thermal conductivity
Answer: (a).Effect of magnetic field on thermal conductivity
Question 87. Insulation property of an insulator decrease in _____________
  1.    Dry condition
  2.    Moisture
  3.    Powdered form
  4.    Compressed state
 Discuss Question
Answer: Option B. -> Moisture
Answer: (b).Moisture
Question 88. When anisotropy is present, direction of heat flow and thermal gradient will be same.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 89. Under phase change, thermal conductivity remains constant.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 90. Which of the following describes molecule movement in gas and liquid?
  1.    Conduction
  2.    Convection
  3.    Radiation
  4.    Diffusion
 Discuss Question
Answer: Option B. -> Convection
Answer: (b).Convection

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