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MCQs

Total Questions : 177 | Page 8 of 18 pages
Question 71. Physical parameters change due to ________
  1.    voltage
  2.    current
  3.    internal and external disturbances
  4.    power
 Discuss Question
Answer: Option C. -> internal and external disturbances
Answer: (c).internal and external disturbances
Question 72. A process control system consists of ________
  1.    10 elements
  2.    6 elements
  3.    2 elements
  4.    4 elements
 Discuss Question
Answer: Option D. -> 4 elements
Answer: (d).4 elements
Question 73. Gauge factor for a semiconductor strain gauge is _______
  1.    130 ± 10%
  2.    30 ± 10%
  3.    200 ± 10%
  4.    10 ± 10%
 Discuss Question
Answer: Option A. -> 130 ± 10%
Answer: (a).130 ± 10%
Question 74. Strain is a _______
  1.    fractional change in volume
  2.    fractional change in area
  3.    fractional change in length
  4.    fractional change in height
 Discuss Question
Answer: Option C. -> fractional change in length
Answer: (c).fractional change in length
Question 75. Load cell is used for the measurement of _______
  1.    area
  2.    force
  3.    mass
  4.    length
 Discuss Question
Answer: Option B. -> force
Answer: (b).force
Question 76. Strain gauge measurement involves __________
  1.    Wheatstone bridge
  2.    Kelvin bridge
  3.    De Sauty’s bridge
  4.    Anderson bridge
 Discuss Question
Answer: Option A. -> Wheatstone bridge
Answer: (a).Wheatstone bridge
Question 77. Hysteresis characteristics of a semiconductor strain gauge are poor.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 78. Semiconductor strain gauge uses _______
  1.    rectifier circuitry
  2.    power electronics circuitry
  3.    ordinary bridge circuit
  4.    bridge circuit with temperature compensation
 Discuss Question
Answer: Option D. -> bridge circuit with temperature compensation
Answer: (d).bridge circuit with temperature compensation
Question 79. A semiconductor strain gauge consists of how many dummy gauges?
  1.    2
  2.    4
  3.    6
  4.    10
 Discuss Question
Answer: Option A. -> 2
Answer: (a).2
Question 80. Metals in strain gauge construction have _______
  1.    non-linear temperature coefficient
  2.    linear temperature coefficient
  3.    tangential temperature coefficient
  4.    exponential temperature coefficient
 Discuss Question
Answer: Option B. -> linear temperature coefficient
Answer: (b).linear temperature coefficient

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