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MCQs

Total Questions : 1634 | Page 127 of 164 pages
Question 1261. Liquid discharge from a tank or reservoir can not be measured by
  1.    Mouthpieces
  2.    Orificemeters
  3.    Weirs
  4.    Notches
 Discuss Question
Answer: Option B. -> Orificemeters
Question 1262. A simple pitot tube measures the
  1.    Maximum velocity
  2.    Point velocity
  3.    Static pressure
  4.    Average velocity
 Discuss Question
Answer: Option C. -> Static pressure
Question 1263. Thermal conductivity measurement com-prises the working principle of a
  1.    Polarimeter
  2.    Chromatograph
  3.    CO₂ analyser
  4.    Spectrometer
 Discuss Question
Answer: Option C. -> CO₂ analyser
Question 1264. Change of angle of refraction with composition comprises the working principle of a
  1.    Spectrometer
  2.    Polarograph
  3.    Polarimeter
  4.    Refractrometer
 Discuss Question
Answer: Option D. -> Refractrometer
Question 1265. Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an
  1.    Chromel-alumel thermocouple
  2.    Either B or C
  3.    Radiation pyrometer
  4.    Optical pyrometer
 Discuss Question
Answer: Option B. -> Either B or C
Question 1266. An amplitude ratio of 0.1 corresponds to __________ decibels.
  1.    -20
  2.    20
  3.    10
  4.    -10
 Discuss Question
Answer: Option A. -> -20
Question 1267. Flow rate of sludge is not measured by a/an
  1.    Kennison nozzle
  2.    Orificemeter
  3.    Both B & C
  4.    Open weir
 Discuss Question
Answer: Option C. -> Both B & C
Question 1268. Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an
  1.    Solid semi-conductor
  2.    Insulator
  3.    Liquid semi-conductor
  4.    Conductor
 Discuss Question
Answer: Option A. -> Solid semi-conductor
Question 1269. Emission spectroscopy is used for
  1.    Solids and metal analysis
  2.    NOxdetermination
  3.    Determining water purity
  4.    Determination of CO₂ in gases
 Discuss Question
Answer: Option A. -> Solids and metal analysis
Question 1270. Pick out the first order system from among the following.
  1.    Non-interacting system of two tanks in series
  2.    Damped vibrator
  3.    Mercury in glass thermometer kept in boiling water
  4.    Interacting system of two tanks in series
 Discuss Question
Answer: Option C. -> Mercury in glass thermometer kept in boiling water

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