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MCQs

Total Questions : 1634 | Page 131 of 164 pages
Question 1301. Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.
  1.    Exponential decrease
  2.    Decrease
  3.    Increase
  4.    No change
 Discuss Question
Answer: Option C. -> Increase
Question 1302. On-off controllers are normally used for
  1.    Flow rate changes
  2.    Temperature changes
  3.    None of these
  4.    Low loads
 Discuss Question
Answer: Option D. -> Low loads
Question 1303. Which of the following is never used as an element of industrial resistance thermometer?
  1.    30% iron + 70% nickel
  2.    Lead
  3.    Nickel
  4.    Copper
 Discuss Question
Answer: Option B. -> Lead
Question 1304. A pyranometer is an instrument used for measuring the
  1.    Beam radiation
  2.    None of these
  3.    Global radiation
  4.    Bright sunshine period
 Discuss Question
Answer: Option C. -> Global radiation
Question 1305. A pyrheliometer is an instrument used for measuring the
  1.    Diffuse radiation
  2.    Beam radiation
  3.    Bright sunshine period
  4.    None of these
 Discuss Question
Answer: Option B. -> Beam radiation
Question 1306. Thermocouple is suitable for measuring
  1.    Very low temperatures only
  2.    Both high and low temperatures
  3.    Very high temperatures only
  4.    Liquid temperatures only
 Discuss Question
Answer: Option B. -> Both high and low temperatures
Question 1307. Continuous measurement of moisture content of paper in paper industry is done by measuring the
  1.    None of these
  2.    Magnetic susceptibility
  3.    Electrical resistance through the paper
  4.    Thermal conductivity through the paper
 Discuss Question
Answer: Option C. -> Electrical resistance through the paper
Question 1308. Feed forward controller accounts for the __________ changes.
  1.    Set point
  2.    Neither A nor B
  3.    Load
  4.    Both A & B
 Discuss Question
Answer: Option C. -> Load
Question 1309. Composition of natural gas is determined by the
  1.    Chromatograph
  2.    Haldane apparatus
  3.    Mass spectrometer
  4.    Both B and C
 Discuss Question
Answer: Option D. -> Both B and C
Question 1310. Measurement of sub-zero Celcius temperature in industry is done most commonly by
  1.    Thermocouples
  2.    Gas thermometers
  3.    Bi-metallic thermometers
  4.    Resistance thermometers
 Discuss Question
Answer: Option D. -> Resistance thermometers

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