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MCQs

Total Questions : 43 | Page 3 of 5 pages
Question 21. Tellurometer, a type of EDM uses which of the following waves?
  1.    Visible rays
  2.    Infra-red waves
  3.    Micro waves
  4.    Radio waves
 Discuss Question
Answer: Option D. -> Radio waves
Answer: (d).Radio waves
Question 22. The distance in EDM is measured by______________
  1.    Frequency of the wave
  2.    Wave length
  3.    Phase difference
  4.    Amplitude
 Discuss Question
Answer: Option C. -> Phase difference
Answer: (c).Phase difference
Question 23. Which property of an electromagnetic wave, depends on the medium in which it is travelling?
  1.    Velocity
  2.    Frequency
  3.    Time period
  4.    Wave length
 Discuss Question
Answer: Option A. -> Velocity
Answer: (a).Velocity
Question 24. Electromagnetic waves are represented in which of the following format?
  1.    Longitudinal waves
  2.    Transverse waves
  3.    Sinusoidal waves
  4.    Surface waves
 Discuss Question
Answer: Option C. -> Sinusoidal waves
Answer: (c).Sinusoidal waves
Question 25. For increasing accuracy, high frequency of propagation is used.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 26. Which of the following represents the correct sequence for the basis of EDM propagation?
  1.    Propagation, generation, reflection and reception
  2.    Generation, reception, reflection and propagation
  3.    Generation, propagation, reception and reflection
  4.    Generation, propagation, reflection and reception
 Discuss Question
Answer: Option D. -> Generation, propagation, reflection and reception
Answer: (d).Generation, propagation, reflection and reception
Question 27. What would be the value of length if the distance is given as 30m, m= 3 and the change in length is 8m.
  1.    7.43m
  2.    7.34m
  3.    6.34m
  4.    5.43m
 Discuss Question
Answer: Option B. -> 7.34m
Answer: (b).7.34m
Question 28. Phase difference can be expressed in which of the following format?
  1.    Meters per second
  2.    Meters
  3.    Cycles
  4.    Seconds
 Discuss Question
Answer: Option C. -> Cycles
Answer: (c).Cycles
Question 29. If 10mm is the accuracy considered, what will be the maximum value of λ for 1/1000 part?
  1.    10000 m
  2.    10 cm
  3.    10 m
  4.    10000 cm
 Discuss Question
Answer: Option C. -> 10 m
Answer: (c).10 m
Question 30. Which can’t be done in high frequency zones?
  1.    Phase comparison
  2.    Super imposition of waves
  3.    Distance measurement
  4.    Wavelength measurement
 Discuss Question
Answer: Option A. -> Phase comparison
Answer: (a).Phase comparison

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